From 19fcec84d8d7d21e796c7624e521b60d28ee21ed Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:45:59 +0200 Subject: Adding upstream version 16.2.11+ds. Signed-off-by: Daniel Baumann --- src/c-ares/m4/.gitignore | 6 + src/c-ares/m4/ax_check_user_namespace.m4 | 54 + src/c-ares/m4/ax_check_uts_namespace.m4 | 76 + src/c-ares/m4/ax_code_coverage.m4 | 219 ++ src/c-ares/m4/ax_cxx_compile_stdcxx_11.m4 | 163 ++ src/c-ares/m4/ax_pthread.m4 | 332 +++ src/c-ares/m4/cares-compilers.m4 | 1587 +++++++++++++ src/c-ares/m4/cares-confopts.m4 | 396 ++++ src/c-ares/m4/cares-functions.m4 | 3615 +++++++++++++++++++++++++++++ src/c-ares/m4/cares-override.m4 | 76 + src/c-ares/m4/cares-reentrant.m4 | 611 +++++ src/c-ares/m4/xc-am-iface.m4 | 253 ++ src/c-ares/m4/xc-cc-check.m4 | 96 + src/c-ares/m4/xc-lt-iface.m4 | 465 ++++ src/c-ares/m4/xc-translit.m4 | 164 ++ src/c-ares/m4/xc-val-flgs.m4 | 243 ++ src/c-ares/m4/zz40-xc-ovr.m4 | 668 ++++++ src/c-ares/m4/zz50-xc-ovr.m4 | 60 + src/c-ares/m4/zz60-xc-ovr.m4 | 64 + 19 files changed, 9148 insertions(+) create mode 100644 src/c-ares/m4/.gitignore create mode 100644 src/c-ares/m4/ax_check_user_namespace.m4 create mode 100644 src/c-ares/m4/ax_check_uts_namespace.m4 create mode 100644 src/c-ares/m4/ax_code_coverage.m4 create mode 100644 src/c-ares/m4/ax_cxx_compile_stdcxx_11.m4 create mode 100644 src/c-ares/m4/ax_pthread.m4 create mode 100644 src/c-ares/m4/cares-compilers.m4 create mode 100644 src/c-ares/m4/cares-confopts.m4 create mode 100644 src/c-ares/m4/cares-functions.m4 create mode 100644 src/c-ares/m4/cares-override.m4 create mode 100644 src/c-ares/m4/cares-reentrant.m4 create mode 100644 src/c-ares/m4/xc-am-iface.m4 create mode 100644 src/c-ares/m4/xc-cc-check.m4 create mode 100644 src/c-ares/m4/xc-lt-iface.m4 create mode 100644 src/c-ares/m4/xc-translit.m4 create mode 100644 src/c-ares/m4/xc-val-flgs.m4 create mode 100644 src/c-ares/m4/zz40-xc-ovr.m4 create mode 100644 src/c-ares/m4/zz50-xc-ovr.m4 create mode 100644 src/c-ares/m4/zz60-xc-ovr.m4 (limited to 'src/c-ares/m4') diff --git a/src/c-ares/m4/.gitignore b/src/c-ares/m4/.gitignore new file mode 100644 index 000000000..f0f1d4db9 --- /dev/null +++ b/src/c-ares/m4/.gitignore @@ -0,0 +1,6 @@ +libtool.m4 +libtool.m4.tmp +ltoptions.m4 +ltsugar.m4 +ltversion.m4 +lt~obsolete.m4 diff --git a/src/c-ares/m4/ax_check_user_namespace.m4 b/src/c-ares/m4/ax_check_user_namespace.m4 new file mode 100644 index 000000000..27ba69821 --- /dev/null +++ b/src/c-ares/m4/ax_check_user_namespace.m4 @@ -0,0 +1,54 @@ +# -*- Autoconf -*- + +# SYNOPSIS +# +# AX_CHECK_USER_NAMESPACE +# +# DESCRIPTION +# +# This macro checks whether the local system supports Linux user namespaces. +# If so, it calls AC_DEFINE(HAVE_USER_NAMESPACE). + +AC_DEFUN([AX_CHECK_USER_NAMESPACE],[dnl + AC_CACHE_CHECK([whether user namespaces are supported], + ax_cv_user_namespace,[ + AC_LANG_PUSH([C]) + AC_RUN_IFELSE([AC_LANG_SOURCE([[ +#define _GNU_SOURCE +#include +#include +#include +#include +#include +#include +#include + +int userfn(void *d) { + usleep(100000); /* synchronize by sleep */ + return (getuid() != 0); +} +char userst[1024*1024]; +int main() { + char buffer[1024]; + int rc, status, fd; + pid_t child = clone(userfn, userst + 1024*1024, CLONE_NEWUSER|SIGCHLD, 0); + if (child < 0) return 1; + + sprintf(buffer, "/proc/%d/uid_map", child); + fd = open(buffer, O_CREAT|O_WRONLY|O_TRUNC, 0755); + sprintf(buffer, "0 %d 1\n", getuid()); + write(fd, buffer, strlen(buffer)); + close(fd); + + rc = waitpid(child, &status, 0); + if (rc <= 0) return 1; + if (!WIFEXITED(status)) return 1; + return WEXITSTATUS(status); +} + ]])],[ax_cv_user_namespace=yes],[ax_cv_user_namespace=no],[ax_cv_user_namespace=no]) + AC_LANG_POP([C]) + ]) + if test "$ax_cv_user_namespace" = yes; then + AC_DEFINE([HAVE_USER_NAMESPACE],[1],[Whether user namespaces are available]) + fi +]) # AX_CHECK_USER_NAMESPACE diff --git a/src/c-ares/m4/ax_check_uts_namespace.m4 b/src/c-ares/m4/ax_check_uts_namespace.m4 new file mode 100644 index 000000000..cf7b145c3 --- /dev/null +++ b/src/c-ares/m4/ax_check_uts_namespace.m4 @@ -0,0 +1,76 @@ +# -*- Autoconf -*- + +# SYNOPSIS +# +# AX_CHECK_UTS_NAMESPACE +# +# DESCRIPTION +# +# This macro checks whether the local system supports Linux UTS namespaces. +# Also requires user namespaces to be available, so that non-root users +# can enter the namespace. +# If so, it calls AC_DEFINE(HAVE_UTS_NAMESPACE). + +AC_DEFUN([AX_CHECK_UTS_NAMESPACE],[dnl + AC_CACHE_CHECK([whether UTS namespaces are supported], + ax_cv_uts_namespace,[ + AC_LANG_PUSH([C]) + AC_RUN_IFELSE([AC_LANG_SOURCE([[ +#define _GNU_SOURCE +#include +#include +#include +#include +#include +#include +#include +#include + +int utsfn(void *d) { + char buffer[1024]; + const char *name = "autoconftest"; + int rc = sethostname(name, strlen(name)); + if (rc != 0) return 1; + gethostname(buffer, 1024); + return (strcmp(buffer, name) != 0); +} + +char st2[1024*1024]; +int fn(void *d) { + pid_t child; + int rc, status; + usleep(100000); /* synchronize by sleep */ + if (getuid() != 0) return 1; + child = clone(utsfn, st2 + 1024*1024, CLONE_NEWUTS|SIGCHLD, 0); + if (child < 0) return 1; + rc = waitpid(child, &status, 0); + if (rc <= 0) return 1; + if (!WIFEXITED(status)) return 1; + return WEXITSTATUS(status); +} +char st[1024*1024]; +int main() { + char buffer[1024]; + int rc, status, fd; + pid_t child = clone(fn, st + 1024*1024, CLONE_NEWUSER|SIGCHLD, 0); + if (child < 0) return 1; + + sprintf(buffer, "/proc/%d/uid_map", child); + fd = open(buffer, O_CREAT|O_WRONLY|O_TRUNC, 0755); + sprintf(buffer, "0 %d 1\n", getuid()); + write(fd, buffer, strlen(buffer)); + close(fd); + + rc = waitpid(child, &status, 0); + if (rc <= 0) return 1; + if (!WIFEXITED(status)) return 1; + return WEXITSTATUS(status); +} +]]) + ],[ax_cv_uts_namespace=yes],[ax_cv_uts_namespace=no],[ax_cv_uts_namespace=no]) + AC_LANG_POP([C]) + ]) + if test "$ax_cv_uts_namespace" = yes; then + AC_DEFINE([HAVE_UTS_NAMESPACE],[1],[Whether UTS namespaces are available]) + fi +]) # AX_CHECK_UTS_NAMESPACE diff --git a/src/c-ares/m4/ax_code_coverage.m4 b/src/c-ares/m4/ax_code_coverage.m4 new file mode 100644 index 000000000..5120c3bb1 --- /dev/null +++ b/src/c-ares/m4/ax_code_coverage.m4 @@ -0,0 +1,219 @@ +# =========================================================================== +# http://www.gnu.org/software/autoconf-archive/ax_code_coverage.html +# =========================================================================== +# +# SYNOPSIS +# +# AX_CODE_COVERAGE() +# +# DESCRIPTION +# +# Defines CODE_COVERAGE_CFLAGS and CODE_COVERAGE_LDFLAGS which should be +# included in the CFLAGS and LIBS/LDFLAGS variables of every build target +# (program or library) which should be built with code coverage support. +# Also defines CODE_COVERAGE_RULES which should be substituted in your +# Makefile; and $enable_code_coverage which can be used in subsequent +# configure output. CODE_COVERAGE_ENABLED is defined and substituted, and +# corresponds to the value of the --enable-code-coverage option, which +# defaults to being disabled. +# +# Test also for gcov program and create GCOV variable that could be +# substituted. +# +# Note that all optimisation flags in CFLAGS must be disabled when code +# coverage is enabled. +# +# Usage example: +# +# configure.ac: +# +# AX_CODE_COVERAGE +# +# Makefile.am: +# +# @CODE_COVERAGE_RULES@ +# my_program_LIBS = ... $(CODE_COVERAGE_LDFLAGS) ... +# my_program_CFLAGS = ... $(CODE_COVERAGE_CFLAGS) ... +# +# This results in a "check-code-coverage" rule being added to any +# Makefile.am which includes "@CODE_COVERAGE_RULES@" (assuming the module +# has been configured with --enable-code-coverage). Running `make +# check-code-coverage` in that directory will run the module's test suite +# (`make check`) and build a code coverage report detailing the code which +# was touched, then print the URI for the report. +# +# This code was derived from Makefile.decl in GLib, originally licenced +# under LGPLv2.1+. +# +# LICENSE +# +# Copyright (c) 2012 Philip Withnall +# Copyright (c) 2012 Xan Lopez +# Copyright (c) 2012 Christian Persch +# Copyright (c) 2012 Paolo Borelli +# Copyright (c) 2012 Dan Winship +# Copyright (c) 2015 Bastien ROUCARIES +# +# This library is free software; you can redistribute it and/or modify it +# under the terms of the GNU Lesser General Public License as published by +# the Free Software Foundation; either version 2.1 of the License, or (at +# your option) any later version. +# +# This library is distributed in the hope that it will be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser +# General Public License for more details. +# +# You should have received a copy of the GNU Lesser General Public License +# along with this program. If not, see . + +#serial 5 + +AC_DEFUN([AX_CODE_COVERAGE],[ + dnl Check for --enable-code-coverage + AC_REQUIRE([AC_PROG_SED]) + + # allow to override gcov location + AC_ARG_WITH([gcov], + [AS_HELP_STRING([--with-gcov[=GCOV]], [use given GCOV for coverage (GCOV=gcov).])], + [_AX_CODE_COVERAGE_GCOV_PROG_WITH=$with_gcov], + [_AX_CODE_COVERAGE_GCOV_PROG_WITH=gcov]) + + AC_MSG_CHECKING([whether to build with code coverage support]) + AC_ARG_ENABLE([code-coverage], + AS_HELP_STRING([--enable-code-coverage], + [Whether to enable code coverage support]),, + enable_code_coverage=no) + + AM_CONDITIONAL([CODE_COVERAGE_ENABLED], [test x$enable_code_coverage = xyes]) + AC_SUBST([CODE_COVERAGE_ENABLED], [$enable_code_coverage]) + AC_MSG_RESULT($enable_code_coverage) + + AS_IF([ test "$enable_code_coverage" = "yes" ], [ + # check for gcov + AC_CHECK_TOOL([GCOV], + [$_AX_CODE_COVERAGE_GCOV_PROG_WITH], + [:]) + AS_IF([test "X$GCOV" = "X:"], + [AC_MSG_ERROR([gcov is needed to do coverage])]) + AC_SUBST([GCOV]) + + dnl Check if gcc is being used + AS_IF([ test "$GCC" = "no" ], [ + AC_MSG_ERROR([not compiling with gcc, which is required for gcov code coverage]) + ]) + + # List of supported lcov versions. + lcov_version_list="1.6 1.7 1.8 1.9 1.10 1.11" + + AC_CHECK_PROG([LCOV], [lcov], [lcov]) + AC_CHECK_PROG([GENHTML], [genhtml], [genhtml]) + + AS_IF([ test "$LCOV" ], [ + AC_CACHE_CHECK([for lcov version], ax_cv_lcov_version, [ + ax_cv_lcov_version=invalid + lcov_version=`$LCOV -v 2>/dev/null | $SED -e 's/^.* //'` + for lcov_check_version in $lcov_version_list; do + if test "$lcov_version" = "$lcov_check_version"; then + ax_cv_lcov_version="$lcov_check_version (ok)" + fi + done + ]) + ], [ + lcov_msg="To enable code coverage reporting you must have one of the following lcov versions installed: $lcov_version_list" + AC_MSG_ERROR([$lcov_msg]) + ]) + + case $ax_cv_lcov_version in + ""|invalid[)] + lcov_msg="You must have one of the following versions of lcov: $lcov_version_list (found: $lcov_version)." + AC_MSG_ERROR([$lcov_msg]) + LCOV="exit 0;" + ;; + esac + + AS_IF([ test -z "$GENHTML" ], [ + AC_MSG_ERROR([Could not find genhtml from the lcov package]) + ]) + + dnl Build the code coverage flags + CODE_COVERAGE_CFLAGS="-O0 -g -fprofile-arcs -ftest-coverage" + CODE_COVERAGE_LDFLAGS="-lgcov" + + AC_SUBST([CODE_COVERAGE_CFLAGS]) + AC_SUBST([CODE_COVERAGE_LDFLAGS]) + +CODE_COVERAGE_RULES=' +# Code coverage +# +# Optional: +# - CODE_COVERAGE_DIRECTORY: Top-level directory for code coverage reporting. +# (Default: $(top_builddir)) +# - CODE_COVERAGE_OUTPUT_FILE: Filename and path for the .info file generated +# by lcov for code coverage. (Default: +# $(PACKAGE_NAME)-$(PACKAGE_VERSION)-coverage.info) +# - CODE_COVERAGE_OUTPUT_DIRECTORY: Directory for generated code coverage +# reports to be created. (Default: +# $(PACKAGE_NAME)-$(PACKAGE_VERSION)-coverage) +# - CODE_COVERAGE_LCOV_OPTIONS_GCOVPATH: --gcov-tool pathtogcov +# - CODE_COVERAGE_LCOV_OPTIONS_DEFAULT: Extra options to pass to the lcov instance. +# (Default: $CODE_COVERAGE_LCOV_OPTIONS_GCOVPATH) +# - CODE_COVERAGE_LCOV_OPTIONS: Extra options to pass to the lcov instance. +# (Default: $CODE_COVERAGE_LCOV_OPTIONS_DEFAULT) +# - CODE_COVERAGE_GENHTML_OPTIONS: Extra options to pass to the genhtml +# instance. (Default: empty) +# - CODE_COVERAGE_IGNORE_PATTERN: Extra glob pattern of files to ignore +# +# The generated report will be titled using the $(PACKAGE_NAME) and +# $(PACKAGE_VERSION). In order to add the current git hash to the title, +# use the git-version-gen script, available online. + +# Optional variables +CODE_COVERAGE_DIRECTORY ?= $(top_builddir) +CODE_COVERAGE_OUTPUT_FILE ?= $(PACKAGE_NAME)-$(PACKAGE_VERSION)-coverage.info +CODE_COVERAGE_OUTPUT_DIRECTORY ?= $(PACKAGE_NAME)-$(PACKAGE_VERSION)-coverage +CODE_COVERAGE_LCOV_OPTIONS_GCOVPATH ?= --gcov-tool "$(GCOV)" +CODE_COVERAGE_LCOV_OPTIONS_DEFAULT ?= $(CODE_COVERAGE_LCOV_OPTIONS_GCOVPATH) +CODE_COVERAGE_LCOV_OPTIONS ?= $(CODE_COVERAGE_LCOV_OPTIONS_DEFAULT) +CODE_COVERAGE_GENHTML_OPTIONS ?= +CODE_COVERAGE_IGNORE_PATTERN ?= + +code_coverage_quiet = $(code_coverage_quiet_$(V)) +code_coverage_quiet_ = +code_coverage_quiet_0 = --quiet + +# Use recursive makes in order to ignore errors during check +check-code-coverage: + -$(MAKE) $(AM_MAKEFLAGS) -k check + $(MAKE) $(AM_MAKEFLAGS) code-coverage-capture + +# Capture code coverage data +code-coverage-capture: code-coverage-capture-hook + $(LCOV) $(code_coverage_quiet) --directory $(CODE_COVERAGE_DIRECTORY) --capture --output-file "$(CODE_COVERAGE_OUTPUT_FILE).tmp" --test-name "$(PACKAGE_NAME)-$(PACKAGE_VERSION)" --no-checksum --compat-libtool $(CODE_COVERAGE_LCOV_OPTIONS) + $(LCOV) $(code_coverage_quiet) --directory $(CODE_COVERAGE_DIRECTORY) --remove "$(CODE_COVERAGE_OUTPUT_FILE).tmp" "/tmp/*" $(CODE_COVERAGE_IGNORE_PATTERN) --output-file "$(CODE_COVERAGE_OUTPUT_FILE)" + -@rm -f $(CODE_COVERAGE_OUTPUT_FILE).tmp + LANG=C $(GENHTML) $(code_coverage_quiet) --prefix $(CODE_COVERAGE_DIRECTORY) --output-directory "$(CODE_COVERAGE_OUTPUT_DIRECTORY)" --title "$(PACKAGE_NAME)-$(PACKAGE_VERSION) Code Coverage" --legend --show-details "$(CODE_COVERAGE_OUTPUT_FILE)" $(CODE_COVERAGE_GENHTML_OPTIONS) + @echo "file://$(abs_builddir)/$(CODE_COVERAGE_OUTPUT_DIRECTORY)/index.html" + +# Hook rule executed before code-coverage-capture, overridable by the user +code-coverage-capture-hook: + +clean: code-coverage-clean +code-coverage-clean: + -$(LCOV) --directory $(top_builddir) -z + -rm -rf $(CODE_COVERAGE_OUTPUT_FILE) $(CODE_COVERAGE_OUTPUT_FILE).tmp $(CODE_COVERAGE_OUTPUT_DIRECTORY) + -find . -name "*.gcda" -o -name "*.gcov" -delete + +GITIGNOREFILES ?= +GITIGNOREFILES += $(CODE_COVERAGE_OUTPUT_FILE) $(CODE_COVERAGE_OUTPUT_DIRECTORY) + +DISTCHECK_CONFIGURE_FLAGS ?= +DISTCHECK_CONFIGURE_FLAGS += --disable-code-coverage + +.PHONY: check-code-coverage code-coverage-capture code-coverage-capture-hook code-coverage-clean +' + AC_SUBST([CODE_COVERAGE_RULES]) + ]) + + m4_ifdef([_AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE([CODE_COVERAGE_RULES])]) +]) diff --git a/src/c-ares/m4/ax_cxx_compile_stdcxx_11.m4 b/src/c-ares/m4/ax_cxx_compile_stdcxx_11.m4 new file mode 100644 index 000000000..229de3091 --- /dev/null +++ b/src/c-ares/m4/ax_cxx_compile_stdcxx_11.m4 @@ -0,0 +1,163 @@ +# ============================================================================ +# http://www.gnu.org/software/autoconf-archive/ax_cxx_compile_stdcxx_11.html +# ============================================================================ +# +# SYNOPSIS +# +# AX_CXX_COMPILE_STDCXX_11([ext|noext],[mandatory|optional]) +# +# DESCRIPTION +# +# Check for baseline language coverage in the compiler for the C++11 +# standard; if necessary, add switches to CXXFLAGS to enable support. +# +# The first argument, if specified, indicates whether you insist on an +# extended mode (e.g. -std=gnu++11) or a strict conformance mode (e.g. +# -std=c++11). If neither is specified, you get whatever works, with +# preference for an extended mode. +# +# The second argument, if specified 'mandatory' or if left unspecified, +# indicates that baseline C++11 support is required and that the macro +# should error out if no mode with that support is found. If specified +# 'optional', then configuration proceeds regardless, after defining +# HAVE_CXX11 if and only if a supporting mode is found. +# +# LICENSE +# +# Copyright (c) 2008 Benjamin Kosnik +# Copyright (c) 2012 Zack Weinberg +# Copyright (c) 2013 Roy Stogner +# Copyright (c) 2014, 2015 Google Inc.; contributed by Alexey Sokolov +# +# Copying and distribution of this file, with or without modification, are +# permitted in any medium without royalty provided the copyright notice +# and this notice are preserved. This file is offered as-is, without any +# warranty. + +#serial 9 + +m4_define([_AX_CXX_COMPILE_STDCXX_11_testbody], [[ + template + struct check + { + static_assert(sizeof(int) <= sizeof(T), "not big enough"); + }; + + struct Base { + virtual void f() {} + }; + struct Child : public Base { + virtual void f() override {} + }; + + typedef check> right_angle_brackets; + + int a; + decltype(a) b; + + typedef check check_type; + check_type c; + check_type&& cr = static_cast(c); + + auto d = a; + auto l = [](){}; + + // http://stackoverflow.com/questions/13728184/template-aliases-and-sfinae + // Clang 3.1 fails with headers of libstd++ 4.8.3 when using std::function because of this + namespace test_template_alias_sfinae { + struct foo {}; + + template + using member = typename T::member_type; + + template + void func(...) {} + + template + void func(member*) {} + + void test(); + + void test() { + func(0); + } + } +]]) + +AC_DEFUN([AX_CXX_COMPILE_STDCXX_11], [dnl + m4_if([$1], [], [], + [$1], [ext], [], + [$1], [noext], [], + [m4_fatal([invalid argument `$1' to AX_CXX_COMPILE_STDCXX_11])])dnl + m4_if([$2], [], [ax_cxx_compile_cxx11_required=true], + [$2], [mandatory], [ax_cxx_compile_cxx11_required=true], + [$2], [optional], [ax_cxx_compile_cxx11_required=false], + [m4_fatal([invalid second argument `$2' to AX_CXX_COMPILE_STDCXX_11])]) + AC_LANG_PUSH([C++])dnl + ac_success=no + AC_CACHE_CHECK(whether $CXX supports C++11 features by default, + ax_cv_cxx_compile_cxx11, + [AC_COMPILE_IFELSE([AC_LANG_SOURCE([_AX_CXX_COMPILE_STDCXX_11_testbody])], + [ax_cv_cxx_compile_cxx11=yes], + [ax_cv_cxx_compile_cxx11=no])]) + if test x$ax_cv_cxx_compile_cxx11 = xyes; then + ac_success=yes + fi + + m4_if([$1], [noext], [], [dnl + if test x$ac_success = xno; then + for switch in -std=gnu++11 -std=gnu++0x; do + cachevar=AS_TR_SH([ax_cv_cxx_compile_cxx11_$switch]) + AC_CACHE_CHECK(whether $CXX supports C++11 features with $switch, + $cachevar, + [ac_save_CXXFLAGS="$CXXFLAGS" + CXXFLAGS="$CXXFLAGS $switch" + AC_COMPILE_IFELSE([AC_LANG_SOURCE([_AX_CXX_COMPILE_STDCXX_11_testbody])], + [eval $cachevar=yes], + [eval $cachevar=no]) + CXXFLAGS="$ac_save_CXXFLAGS"]) + if eval test x\$$cachevar = xyes; then + CXXFLAGS="$CXXFLAGS $switch" + ac_success=yes + break + fi + done + fi]) + + m4_if([$1], [ext], [], [dnl + if test x$ac_success = xno; then + for switch in -std=c++11 -std=c++0x; do + cachevar=AS_TR_SH([ax_cv_cxx_compile_cxx11_$switch]) + AC_CACHE_CHECK(whether $CXX supports C++11 features with $switch, + $cachevar, + [ac_save_CXXFLAGS="$CXXFLAGS" + CXXFLAGS="$CXXFLAGS $switch" + AC_COMPILE_IFELSE([AC_LANG_SOURCE([_AX_CXX_COMPILE_STDCXX_11_testbody])], + [eval $cachevar=yes], + [eval $cachevar=no]) + CXXFLAGS="$ac_save_CXXFLAGS"]) + if eval test x\$$cachevar = xyes; then + CXXFLAGS="$CXXFLAGS $switch" + ac_success=yes + break + fi + done + fi]) + AC_LANG_POP([C++]) + if test x$ax_cxx_compile_cxx11_required = xtrue; then + if test x$ac_success = xno; then + AC_MSG_ERROR([*** A compiler with support for C++11 language features is required.]) + fi + else + if test x$ac_success = xno; then + HAVE_CXX11=0 + AC_MSG_NOTICE([No compiler with C++11 support was found]) + else + HAVE_CXX11=1 + AC_DEFINE(HAVE_CXX11,1, + [define if the compiler supports basic C++11 syntax]) + fi + + AC_SUBST(HAVE_CXX11) + fi +]) diff --git a/src/c-ares/m4/ax_pthread.m4 b/src/c-ares/m4/ax_pthread.m4 new file mode 100644 index 000000000..d383ad5c6 --- /dev/null +++ b/src/c-ares/m4/ax_pthread.m4 @@ -0,0 +1,332 @@ +# =========================================================================== +# http://www.gnu.org/software/autoconf-archive/ax_pthread.html +# =========================================================================== +# +# SYNOPSIS +# +# AX_PTHREAD([ACTION-IF-FOUND[, ACTION-IF-NOT-FOUND]]) +# +# DESCRIPTION +# +# This macro figures out how to build C programs using POSIX threads. It +# sets the PTHREAD_LIBS output variable to the threads library and linker +# flags, and the PTHREAD_CFLAGS output variable to any special C compiler +# flags that are needed. (The user can also force certain compiler +# flags/libs to be tested by setting these environment variables.) +# +# Also sets PTHREAD_CC to any special C compiler that is needed for +# multi-threaded programs (defaults to the value of CC otherwise). (This +# is necessary on AIX to use the special cc_r compiler alias.) +# +# NOTE: You are assumed to not only compile your program with these flags, +# but also link it with them as well. e.g. you should link with +# $PTHREAD_CC $CFLAGS $PTHREAD_CFLAGS $LDFLAGS ... $PTHREAD_LIBS $LIBS +# +# If you are only building threads programs, you may wish to use these +# variables in your default LIBS, CFLAGS, and CC: +# +# LIBS="$PTHREAD_LIBS $LIBS" +# CFLAGS="$CFLAGS $PTHREAD_CFLAGS" +# CC="$PTHREAD_CC" +# +# In addition, if the PTHREAD_CREATE_JOINABLE thread-attribute constant +# has a nonstandard name, defines PTHREAD_CREATE_JOINABLE to that name +# (e.g. PTHREAD_CREATE_UNDETACHED on AIX). +# +# Also HAVE_PTHREAD_PRIO_INHERIT is defined if pthread is found and the +# PTHREAD_PRIO_INHERIT symbol is defined when compiling with +# PTHREAD_CFLAGS. +# +# ACTION-IF-FOUND is a list of shell commands to run if a threads library +# is found, and ACTION-IF-NOT-FOUND is a list of commands to run it if it +# is not found. If ACTION-IF-FOUND is not specified, the default action +# will define HAVE_PTHREAD. +# +# Please let the authors know if this macro fails on any platform, or if +# you have any other suggestions or comments. This macro was based on work +# by SGJ on autoconf scripts for FFTW (http://www.fftw.org/) (with help +# from M. Frigo), as well as ac_pthread and hb_pthread macros posted by +# Alejandro Forero Cuervo to the autoconf macro repository. We are also +# grateful for the helpful feedback of numerous users. +# +# Updated for Autoconf 2.68 by Daniel Richard G. +# +# LICENSE +# +# Copyright (c) 2008 Steven G. Johnson +# Copyright (c) 2011 Daniel Richard G. +# +# This program is free software: you can redistribute it and/or modify it +# under the terms of the GNU General Public License as published by the +# Free Software Foundation, either version 3 of the License, or (at your +# option) any later version. +# +# This program is distributed in the hope that it will be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General +# Public License for more details. +# +# You should have received a copy of the GNU General Public License along +# with this program. If not, see . +# +# As a special exception, the respective Autoconf Macro's copyright owner +# gives unlimited permission to copy, distribute and modify the configure +# scripts that are the output of Autoconf when processing the Macro. You +# need not follow the terms of the GNU General Public License when using +# or distributing such scripts, even though portions of the text of the +# Macro appear in them. The GNU General Public License (GPL) does govern +# all other use of the material that constitutes the Autoconf Macro. +# +# This special exception to the GPL applies to versions of the Autoconf +# Macro released by the Autoconf Archive. When you make and distribute a +# modified version of the Autoconf Macro, you may extend this special +# exception to the GPL to apply to your modified version as well. + +#serial 21 + +AU_ALIAS([ACX_PTHREAD], [AX_PTHREAD]) +AC_DEFUN([AX_PTHREAD], [ +AC_REQUIRE([AC_CANONICAL_HOST]) +AC_LANG_PUSH([C]) +ax_pthread_ok=no + +# We used to check for pthread.h first, but this fails if pthread.h +# requires special compiler flags (e.g. on True64 or Sequent). +# It gets checked for in the link test anyway. + +# First of all, check if the user has set any of the PTHREAD_LIBS, +# etcetera environment variables, and if threads linking works using +# them: +if test x"$PTHREAD_LIBS$PTHREAD_CFLAGS" != x; then + save_CFLAGS="$CFLAGS" + CFLAGS="$CFLAGS $PTHREAD_CFLAGS" + save_LIBS="$LIBS" + LIBS="$PTHREAD_LIBS $LIBS" + AC_MSG_CHECKING([for pthread_join in LIBS=$PTHREAD_LIBS with CFLAGS=$PTHREAD_CFLAGS]) + AC_TRY_LINK_FUNC([pthread_join], [ax_pthread_ok=yes]) + AC_MSG_RESULT([$ax_pthread_ok]) + if test x"$ax_pthread_ok" = xno; then + PTHREAD_LIBS="" + PTHREAD_CFLAGS="" + fi + LIBS="$save_LIBS" + CFLAGS="$save_CFLAGS" +fi + +# We must check for the threads library under a number of different +# names; the ordering is very important because some systems +# (e.g. DEC) have both -lpthread and -lpthreads, where one of the +# libraries is broken (non-POSIX). + +# Create a list of thread flags to try. Items starting with a "-" are +# C compiler flags, and other items are library names, except for "none" +# which indicates that we try without any flags at all, and "pthread-config" +# which is a program returning the flags for the Pth emulation library. + +ax_pthread_flags="pthreads none -Kthread -kthread lthread -pthread -pthreads -mthreads pthread --thread-safe -mt pthread-config" + +# The ordering *is* (sometimes) important. Some notes on the +# individual items follow: + +# pthreads: AIX (must check this before -lpthread) +# none: in case threads are in libc; should be tried before -Kthread and +# other compiler flags to prevent continual compiler warnings +# -Kthread: Sequent (threads in libc, but -Kthread needed for pthread.h) +# -kthread: FreeBSD kernel threads (preferred to -pthread since SMP-able) +# lthread: LinuxThreads port on FreeBSD (also preferred to -pthread) +# -pthread: Linux/gcc (kernel threads), BSD/gcc (userland threads) +# -pthreads: Solaris/gcc +# -mthreads: Mingw32/gcc, Lynx/gcc +# -mt: Sun Workshop C (may only link SunOS threads [-lthread], but it +# doesn't hurt to check since this sometimes defines pthreads too; +# also defines -D_REENTRANT) +# ... -mt is also the pthreads flag for HP/aCC +# pthread: Linux, etcetera +# --thread-safe: KAI C++ +# pthread-config: use pthread-config program (for GNU Pth library) + +case ${host_os} in + solaris*) + + # On Solaris (at least, for some versions), libc contains stubbed + # (non-functional) versions of the pthreads routines, so link-based + # tests will erroneously succeed. (We need to link with -pthreads/-mt/ + # -lpthread.) (The stubs are missing pthread_cleanup_push, or rather + # a function called by this macro, so we could check for that, but + # who knows whether they'll stub that too in a future libc.) So, + # we'll just look for -pthreads and -lpthread first: + + ax_pthread_flags="-pthreads pthread -mt -pthread $ax_pthread_flags" + ;; + + darwin*) + ax_pthread_flags="-pthread $ax_pthread_flags" + ;; +esac + +# Clang doesn't consider unrecognized options an error unless we specify +# -Werror. We throw in some extra Clang-specific options to ensure that +# this doesn't happen for GCC, which also accepts -Werror. + +AC_MSG_CHECKING([if compiler needs -Werror to reject unknown flags]) +save_CFLAGS="$CFLAGS" +ax_pthread_extra_flags="-Werror" +CFLAGS="$CFLAGS $ax_pthread_extra_flags -Wunknown-warning-option -Wsizeof-array-argument" +AC_COMPILE_IFELSE([AC_LANG_PROGRAM([int foo(void);],[foo()])], + [AC_MSG_RESULT([yes])], + [ax_pthread_extra_flags= + AC_MSG_RESULT([no])]) +CFLAGS="$save_CFLAGS" + +if test x"$ax_pthread_ok" = xno; then +for flag in $ax_pthread_flags; do + + case $flag in + none) + AC_MSG_CHECKING([whether pthreads work without any flags]) + ;; + + -*) + AC_MSG_CHECKING([whether pthreads work with $flag]) + PTHREAD_CFLAGS="$flag" + ;; + + pthread-config) + AC_CHECK_PROG([ax_pthread_config], [pthread-config], [yes], [no]) + if test x"$ax_pthread_config" = xno; then continue; fi + PTHREAD_CFLAGS="`pthread-config --cflags`" + PTHREAD_LIBS="`pthread-config --ldflags` `pthread-config --libs`" + ;; + + *) + AC_MSG_CHECKING([for the pthreads library -l$flag]) + PTHREAD_LIBS="-l$flag" + ;; + esac + + save_LIBS="$LIBS" + save_CFLAGS="$CFLAGS" + LIBS="$PTHREAD_LIBS $LIBS" + CFLAGS="$CFLAGS $PTHREAD_CFLAGS $ax_pthread_extra_flags" + + # Check for various functions. We must include pthread.h, + # since some functions may be macros. (On the Sequent, we + # need a special flag -Kthread to make this header compile.) + # We check for pthread_join because it is in -lpthread on IRIX + # while pthread_create is in libc. We check for pthread_attr_init + # due to DEC craziness with -lpthreads. We check for + # pthread_cleanup_push because it is one of the few pthread + # functions on Solaris that doesn't have a non-functional libc stub. + # We try pthread_create on general principles. + AC_LINK_IFELSE([AC_LANG_PROGRAM([#include + static void routine(void *a) { a = 0; } + static void *start_routine(void *a) { return a; }], + [pthread_t th; pthread_attr_t attr; + pthread_create(&th, 0, start_routine, 0); + pthread_join(th, 0); + pthread_attr_init(&attr); + pthread_cleanup_push(routine, 0); + pthread_cleanup_pop(0) /* ; */])], + [ax_pthread_ok=yes], + []) + + LIBS="$save_LIBS" + CFLAGS="$save_CFLAGS" + + AC_MSG_RESULT([$ax_pthread_ok]) + if test "x$ax_pthread_ok" = xyes; then + break; + fi + + PTHREAD_LIBS="" + PTHREAD_CFLAGS="" +done +fi + +# Various other checks: +if test "x$ax_pthread_ok" = xyes; then + save_LIBS="$LIBS" + LIBS="$PTHREAD_LIBS $LIBS" + save_CFLAGS="$CFLAGS" + CFLAGS="$CFLAGS $PTHREAD_CFLAGS" + + # Detect AIX lossage: JOINABLE attribute is called UNDETACHED. + AC_MSG_CHECKING([for joinable pthread attribute]) + attr_name=unknown + for attr in PTHREAD_CREATE_JOINABLE PTHREAD_CREATE_UNDETACHED; do + AC_LINK_IFELSE([AC_LANG_PROGRAM([#include ], + [int attr = $attr; return attr /* ; */])], + [attr_name=$attr; break], + []) + done + AC_MSG_RESULT([$attr_name]) + if test "$attr_name" != PTHREAD_CREATE_JOINABLE; then + AC_DEFINE_UNQUOTED([PTHREAD_CREATE_JOINABLE], [$attr_name], + [Define to necessary symbol if this constant + uses a non-standard name on your system.]) + fi + + AC_MSG_CHECKING([if more special flags are required for pthreads]) + flag=no + case ${host_os} in + aix* | freebsd* | darwin*) flag="-D_THREAD_SAFE";; + osf* | hpux*) flag="-D_REENTRANT";; + solaris*) + if test "$GCC" = "yes"; then + flag="-D_REENTRANT" + else + # TODO: What about Clang on Solaris? + flag="-mt -D_REENTRANT" + fi + ;; + esac + AC_MSG_RESULT([$flag]) + if test "x$flag" != xno; then + PTHREAD_CFLAGS="$flag $PTHREAD_CFLAGS" + fi + + AC_CACHE_CHECK([for PTHREAD_PRIO_INHERIT], + [ax_cv_PTHREAD_PRIO_INHERIT], [ + AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include ]], + [[int i = PTHREAD_PRIO_INHERIT;]])], + [ax_cv_PTHREAD_PRIO_INHERIT=yes], + [ax_cv_PTHREAD_PRIO_INHERIT=no]) + ]) + AS_IF([test "x$ax_cv_PTHREAD_PRIO_INHERIT" = "xyes"], + [AC_DEFINE([HAVE_PTHREAD_PRIO_INHERIT], [1], [Have PTHREAD_PRIO_INHERIT.])]) + + LIBS="$save_LIBS" + CFLAGS="$save_CFLAGS" + + # More AIX lossage: compile with *_r variant + if test "x$GCC" != xyes; then + case $host_os in + aix*) + AS_CASE(["x/$CC"], + [x*/c89|x*/c89_128|x*/c99|x*/c99_128|x*/cc|x*/cc128|x*/xlc|x*/xlc_v6|x*/xlc128|x*/xlc128_v6], + [#handle absolute path differently from PATH based program lookup + AS_CASE(["x$CC"], + [x/*], + [AS_IF([AS_EXECUTABLE_P([${CC}_r])],[PTHREAD_CC="${CC}_r"])], + [AC_CHECK_PROGS([PTHREAD_CC],[${CC}_r],[$CC])])]) + ;; + esac + fi +fi + +test -n "$PTHREAD_CC" || PTHREAD_CC="$CC" + +AC_SUBST([PTHREAD_LIBS]) +AC_SUBST([PTHREAD_CFLAGS]) +AC_SUBST([PTHREAD_CC]) + +# Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND: +if test x"$ax_pthread_ok" = xyes; then + ifelse([$1],,[AC_DEFINE([HAVE_PTHREAD],[1],[Define if you have POSIX threads libraries and header files.])],[$1]) + : +else + ax_pthread_ok=no + $2 +fi +AC_LANG_POP +])dnl AX_PTHREAD diff --git a/src/c-ares/m4/cares-compilers.m4 b/src/c-ares/m4/cares-compilers.m4 new file mode 100644 index 000000000..2b98a6886 --- /dev/null +++ b/src/c-ares/m4/cares-compilers.m4 @@ -0,0 +1,1587 @@ +#*************************************************************************** +# +# Copyright (C) 2009-2013 by Daniel Stenberg et al +# +# Permission to use, copy, modify, and distribute this software and its +# documentation for any purpose and without fee is hereby granted, provided +# that the above copyright notice appear in all copies and that both that +# copyright notice and this permission notice appear in supporting +# documentation, and that the name of M.I.T. not be used in advertising or +# publicity pertaining to distribution of the software without specific, +# written prior permission. M.I.T. makes no representations about the +# suitability of this software for any purpose. It is provided "as is" +# without express or implied warranty. +# +#*************************************************************************** + +# File version for 'aclocal' use. Keep it a single number. +# serial 75 + + +dnl CARES_CHECK_COMPILER +dnl ------------------------------------------------- +dnl Verify if the C compiler being used is known. + +AC_DEFUN([CARES_CHECK_COMPILER], [ + # + compiler_id="unknown" + compiler_num="0" + # + flags_dbg_all="unknown" + flags_dbg_yes="unknown" + flags_dbg_off="unknown" + flags_opt_all="unknown" + flags_opt_yes="unknown" + flags_opt_off="unknown" + # + flags_prefer_cppflags="no" + # + CARES_CHECK_COMPILER_DEC_C + CARES_CHECK_COMPILER_HPUX_C + CARES_CHECK_COMPILER_IBM_C + CARES_CHECK_COMPILER_INTEL_C + CARES_CHECK_COMPILER_CLANG + CARES_CHECK_COMPILER_GNU_C + CARES_CHECK_COMPILER_LCC + CARES_CHECK_COMPILER_SGI_MIPSPRO_C + CARES_CHECK_COMPILER_SGI_MIPS_C + CARES_CHECK_COMPILER_SUNPRO_C + CARES_CHECK_COMPILER_TINY_C + CARES_CHECK_COMPILER_WATCOM_C + # + if test "$compiler_id" = "unknown"; then + cat <<_EOF 1>&2 +*** +*** Warning: This configure script does not have information about the +*** compiler you are using, relative to the flags required to enable or +*** disable generation of debug info, optimization options or warnings. +*** +*** Whatever settings are present in CFLAGS will be used for this run. +*** +*** If you wish to help the c-ares project to better support your compiler +*** you can report this and the required info on the c-ares development +*** mailing list: http://cool.haxx.se/mailman/listinfo/c-ares/ +*** +_EOF + fi +]) + + +dnl CARES_CHECK_COMPILER_CLANG +dnl ------------------------------------------------- +dnl Verify if compiler being used is clang. + +AC_DEFUN([CARES_CHECK_COMPILER_CLANG], [ + AC_BEFORE([$0],[CARES_CHECK_COMPILER_GNU_C])dnl + AC_MSG_CHECKING([if compiler is clang]) + CURL_CHECK_DEF([__clang__], [], [silent]) + if test "$curl_cv_have_def___clang__" = "yes"; then + AC_MSG_RESULT([yes]) + compiler_id="CLANG" + clangver=`$CC -dumpversion` + clangvhi=`echo $clangver | cut -d . -f1` + clangvlo=`echo $clangver | cut -d . -f2` + compiler_num=`(expr $clangvhi "*" 100 + $clangvlo) 2>/dev/null` + flags_dbg_all="-g -g0 -g1 -g2 -g3" + flags_dbg_all="$flags_dbg_all -ggdb" + flags_dbg_all="$flags_dbg_all -gstabs" + flags_dbg_all="$flags_dbg_all -gstabs+" + flags_dbg_all="$flags_dbg_all -gcoff" + flags_dbg_all="$flags_dbg_all -gxcoff" + flags_dbg_all="$flags_dbg_all -gdwarf-2" + flags_dbg_all="$flags_dbg_all -gvms" + flags_dbg_yes="-g" + flags_dbg_off="-g0" + flags_opt_all="-O -O0 -O1 -O2 -Os -O3 -O4" + flags_opt_yes="-Os" + flags_opt_off="-O0" + else + AC_MSG_RESULT([no]) + fi +]) + + +dnl CARES_CHECK_COMPILER_DEC_C +dnl ------------------------------------------------- +dnl Verify if compiler being used is DEC C. + +AC_DEFUN([CARES_CHECK_COMPILER_DEC_C], [ + AC_MSG_CHECKING([if compiler is DEC/Compaq/HP C]) + CURL_CHECK_DEF([__DECC], [], [silent]) + CURL_CHECK_DEF([__DECC_VER], [], [silent]) + if test "$curl_cv_have_def___DECC" = "yes" && + test "$curl_cv_have_def___DECC_VER" = "yes"; then + AC_MSG_RESULT([yes]) + compiler_id="DEC_C" + flags_dbg_all="-g -g0 -g1 -g2 -g3" + flags_dbg_yes="-g2" + flags_dbg_off="-g0" + flags_opt_all="-O -O0 -O1 -O2 -O3 -O4" + flags_opt_yes="-O1" + flags_opt_off="-O0" + else + AC_MSG_RESULT([no]) + fi +]) + + +dnl CARES_CHECK_COMPILER_GNU_C +dnl ------------------------------------------------- +dnl Verify if compiler being used is GNU C. + +AC_DEFUN([CARES_CHECK_COMPILER_GNU_C], [ + AC_REQUIRE([CARES_CHECK_COMPILER_INTEL_C])dnl + AC_REQUIRE([CARES_CHECK_COMPILER_CLANG])dnl + AC_MSG_CHECKING([if compiler is GNU C]) + CURL_CHECK_DEF([__GNUC__], [], [silent]) + if test "$curl_cv_have_def___GNUC__" = "yes" && + test "$compiler_id" = "unknown"; then + AC_MSG_RESULT([yes]) + compiler_id="GNU_C" + gccver=`$CC -dumpversion` + gccvhi=`echo $gccver | cut -d . -f1` + gccvlo=`echo $gccver | cut -d . -f2` + compiler_num=`(expr $gccvhi "*" 100 + $gccvlo) 2>/dev/null` + flags_dbg_all="-g -g0 -g1 -g2 -g3" + flags_dbg_all="$flags_dbg_all -ggdb" + flags_dbg_all="$flags_dbg_all -gstabs" + flags_dbg_all="$flags_dbg_all -gstabs+" + flags_dbg_all="$flags_dbg_all -gcoff" + flags_dbg_all="$flags_dbg_all -gxcoff" + flags_dbg_all="$flags_dbg_all -gdwarf-2" + flags_dbg_all="$flags_dbg_all -gvms" + flags_dbg_yes="-g" + flags_dbg_off="-g0" + flags_opt_all="-O -O0 -O1 -O2 -O3 -Os" + flags_opt_yes="-O2" + flags_opt_off="-O0" + CURL_CHECK_DEF([_WIN32], [], [silent]) + else + AC_MSG_RESULT([no]) + fi +]) + + +dnl CARES_CHECK_COMPILER_HPUX_C +dnl ------------------------------------------------- +dnl Verify if compiler being used is HP-UX C. + +AC_DEFUN([CARES_CHECK_COMPILER_HPUX_C], [ + AC_MSG_CHECKING([if compiler is HP-UX C]) + CURL_CHECK_DEF([__HP_cc], [], [silent]) + if test "$curl_cv_have_def___HP_cc" = "yes"; then + AC_MSG_RESULT([yes]) + compiler_id="HP_UX_C" + flags_dbg_all="-g -s" + flags_dbg_yes="-g" + flags_dbg_off="-s" + flags_opt_all="-O +O0 +O1 +O2 +O3 +O4" + flags_opt_yes="+O2" + flags_opt_off="+O0" + else + AC_MSG_RESULT([no]) + fi +]) + + +dnl CARES_CHECK_COMPILER_IBM_C +dnl ------------------------------------------------- +dnl Verify if compiler being used is IBM C. + +AC_DEFUN([CARES_CHECK_COMPILER_IBM_C], [ + AC_MSG_CHECKING([if compiler is IBM C]) + CURL_CHECK_DEF([__IBMC__], [], [silent]) + if test "$curl_cv_have_def___IBMC__" = "yes"; then + AC_MSG_RESULT([yes]) + compiler_id="IBM_C" + flags_dbg_all="-g -g0 -g1 -g2 -g3" + flags_dbg_yes="-g" + flags_dbg_off="" + flags_opt_all="-O -O0 -O1 -O2 -O3 -O4 -O5" + flags_opt_all="$flags_opt_all -qnooptimize" + flags_opt_all="$flags_opt_all -qoptimize=0" + flags_opt_all="$flags_opt_all -qoptimize=1" + flags_opt_all="$flags_opt_all -qoptimize=2" + flags_opt_all="$flags_opt_all -qoptimize=3" + flags_opt_all="$flags_opt_all -qoptimize=4" + flags_opt_all="$flags_opt_all -qoptimize=5" + flags_opt_yes="-O2" + flags_opt_off="-qnooptimize" + flags_prefer_cppflags="yes" + else + AC_MSG_RESULT([no]) + fi +]) + + +dnl CARES_CHECK_COMPILER_INTEL_C +dnl ------------------------------------------------- +dnl Verify if compiler being used is Intel C. + +AC_DEFUN([CARES_CHECK_COMPILER_INTEL_C], [ + AC_BEFORE([$0],[CARES_CHECK_COMPILER_GNU_C])dnl + AC_MSG_CHECKING([if compiler is Intel C]) + CURL_CHECK_DEF([__INTEL_COMPILER], [], [silent]) + if test "$curl_cv_have_def___INTEL_COMPILER" = "yes"; then + AC_MSG_RESULT([yes]) + compiler_num="$curl_cv_def___INTEL_COMPILER" + CURL_CHECK_DEF([__unix__], [], [silent]) + if test "$curl_cv_have_def___unix__" = "yes"; then + compiler_id="INTEL_UNIX_C" + flags_dbg_all="-g -g0" + flags_dbg_yes="-g" + flags_dbg_off="-g0" + flags_opt_all="-O -O0 -O1 -O2 -O3 -Os" + flags_opt_yes="-O2" + flags_opt_off="-O0" + else + compiler_id="INTEL_WINDOWS_C" + flags_dbg_all="/ZI /Zi /zI /zi /ZD /Zd /zD /zd /Z7 /z7 /Oy /Oy-" + flags_dbg_all="$flags_dbg_all /debug" + flags_dbg_all="$flags_dbg_all /debug:none" + flags_dbg_all="$flags_dbg_all /debug:minimal" + flags_dbg_all="$flags_dbg_all /debug:partial" + flags_dbg_all="$flags_dbg_all /debug:full" + flags_dbg_all="$flags_dbg_all /debug:semantic_stepping" + flags_dbg_all="$flags_dbg_all /debug:extended" + flags_dbg_yes="/Zi /Oy-" + flags_dbg_off="/debug:none /Oy-" + flags_opt_all="/O /O0 /O1 /O2 /O3 /Od /Og /Og- /Oi /Oi-" + flags_opt_yes="/O2" + flags_opt_off="/Od" + fi + else + AC_MSG_RESULT([no]) + fi +]) + + +dnl CARES_CHECK_COMPILER_LCC +dnl ------------------------------------------------- +dnl Verify if compiler being used is LCC. + +AC_DEFUN([CARES_CHECK_COMPILER_LCC], [ + AC_MSG_CHECKING([if compiler is LCC]) + CURL_CHECK_DEF([__LCC__], [], [silent]) + if test "$curl_cv_have_def___LCC__" = "yes"; then + AC_MSG_RESULT([yes]) + compiler_id="LCC" + flags_dbg_all="-g" + flags_dbg_yes="-g" + flags_dbg_off="" + flags_opt_all="" + flags_opt_yes="" + flags_opt_off="" + else + AC_MSG_RESULT([no]) + fi +]) + + +dnl CARES_CHECK_COMPILER_SGI_MIPS_C +dnl ------------------------------------------------- +dnl Verify if compiler being used is SGI MIPS C. + +AC_DEFUN([CARES_CHECK_COMPILER_SGI_MIPS_C], [ + AC_REQUIRE([CARES_CHECK_COMPILER_SGI_MIPSPRO_C])dnl + AC_MSG_CHECKING([if compiler is SGI MIPS C]) + CURL_CHECK_DEF([__GNUC__], [], [silent]) + CURL_CHECK_DEF([__sgi], [], [silent]) + if test "$curl_cv_have_def___GNUC__" = "no" && + test "$curl_cv_have_def___sgi" = "yes" && + test "$compiler_id" = "unknown"; then + AC_MSG_RESULT([yes]) + compiler_id="SGI_MIPS_C" + flags_dbg_all="-g -g0 -g1 -g2 -g3" + flags_dbg_yes="-g" + flags_dbg_off="-g0" + flags_opt_all="-O -O0 -O1 -O2 -O3 -Ofast" + flags_opt_yes="-O2" + flags_opt_off="-O0" + else + AC_MSG_RESULT([no]) + fi +]) + + +dnl CARES_CHECK_COMPILER_SGI_MIPSPRO_C +dnl ------------------------------------------------- +dnl Verify if compiler being used is SGI MIPSpro C. + +AC_DEFUN([CARES_CHECK_COMPILER_SGI_MIPSPRO_C], [ + AC_BEFORE([$0],[CARES_CHECK_COMPILER_SGI_MIPS_C])dnl + AC_MSG_CHECKING([if compiler is SGI MIPSpro C]) + CURL_CHECK_DEF([__GNUC__], [], [silent]) + CURL_CHECK_DEF([_COMPILER_VERSION], [], [silent]) + CURL_CHECK_DEF([_SGI_COMPILER_VERSION], [], [silent]) + if test "$curl_cv_have_def___GNUC__" = "no" && + (test "$curl_cv_have_def__SGI_COMPILER_VERSION" = "yes" || + test "$curl_cv_have_def__COMPILER_VERSION" = "yes"); then + AC_MSG_RESULT([yes]) + compiler_id="SGI_MIPSPRO_C" + flags_dbg_all="-g -g0 -g1 -g2 -g3" + flags_dbg_yes="-g" + flags_dbg_off="-g0" + flags_opt_all="-O -O0 -O1 -O2 -O3 -Ofast" + flags_opt_yes="-O2" + flags_opt_off="-O0" + else + AC_MSG_RESULT([no]) + fi +]) + + +dnl CARES_CHECK_COMPILER_SUNPRO_C +dnl ------------------------------------------------- +dnl Verify if compiler being used is SunPro C. + +AC_DEFUN([CARES_CHECK_COMPILER_SUNPRO_C], [ + AC_MSG_CHECKING([if compiler is SunPro C]) + CURL_CHECK_DEF([__SUNPRO_C], [], [silent]) + if test "$curl_cv_have_def___SUNPRO_C" = "yes"; then + AC_MSG_RESULT([yes]) + compiler_id="SUNPRO_C" + flags_dbg_all="-g -s" + flags_dbg_yes="-g" + flags_dbg_off="-s" + flags_opt_all="-O -xO -xO1 -xO2 -xO3 -xO4 -xO5" + flags_opt_yes="-xO2" + flags_opt_off="" + else + AC_MSG_RESULT([no]) + fi +]) + + +dnl CARES_CHECK_COMPILER_TINY_C +dnl ------------------------------------------------- +dnl Verify if compiler being used is Tiny C. + +AC_DEFUN([CARES_CHECK_COMPILER_TINY_C], [ + AC_MSG_CHECKING([if compiler is Tiny C]) + CURL_CHECK_DEF([__TINYC__], [], [silent]) + if test "$curl_cv_have_def___TINYC__" = "yes"; then + AC_MSG_RESULT([yes]) + compiler_id="TINY_C" + flags_dbg_all="-g -b" + flags_dbg_yes="-g" + flags_dbg_off="" + flags_opt_all="" + flags_opt_yes="" + flags_opt_off="" + else + AC_MSG_RESULT([no]) + fi +]) + + +dnl CARES_CHECK_COMPILER_WATCOM_C +dnl ------------------------------------------------- +dnl Verify if compiler being used is Watcom C. + +AC_DEFUN([CARES_CHECK_COMPILER_WATCOM_C], [ + AC_MSG_CHECKING([if compiler is Watcom C]) + CURL_CHECK_DEF([__WATCOMC__], [], [silent]) + if test "$curl_cv_have_def___WATCOMC__" = "yes"; then + AC_MSG_RESULT([yes]) + CURL_CHECK_DEF([__UNIX__], [], [silent]) + if test "$curl_cv_have_def___UNIX__" = "yes"; then + compiler_id="WATCOM_UNIX_C" + flags_dbg_all="-g1 -g1+ -g2 -g3" + flags_dbg_yes="-g2" + flags_dbg_off="" + flags_opt_all="-O0 -O1 -O2 -O3" + flags_opt_yes="-O2" + flags_opt_off="-O0" + else + compiler_id="WATCOM_WINDOWS_C" + flags_dbg_all="" + flags_dbg_yes="" + flags_dbg_off="" + flags_opt_all="" + flags_opt_yes="" + flags_opt_off="" + fi + else + AC_MSG_RESULT([no]) + fi +]) + + +dnl CARES_CONVERT_INCLUDE_TO_ISYSTEM +dnl ------------------------------------------------- +dnl Changes standard include paths present in CFLAGS +dnl and CPPFLAGS into isystem include paths. This is +dnl done to prevent GNUC from generating warnings on +dnl headers from these locations, although on ancient +dnl GNUC versions these warnings are not silenced. + +AC_DEFUN([CARES_CONVERT_INCLUDE_TO_ISYSTEM], [ + AC_REQUIRE([CARES_SHFUNC_SQUEEZE])dnl + AC_REQUIRE([CARES_CHECK_COMPILER])dnl + if test "$compiler_id" = "GNU_C" || + test "$compiler_id" = "CLANG"; then + tmp_has_include="no" + tmp_chg_FLAGS="$CFLAGS" + for word1 in $tmp_chg_FLAGS; do + case "$word1" in + -I*) + tmp_has_include="yes" + ;; + esac + done + if test "$tmp_has_include" = "yes"; then + tmp_chg_FLAGS=`echo "$tmp_chg_FLAGS" | "$SED" 's/^-I/ -isystem /g'` + tmp_chg_FLAGS=`echo "$tmp_chg_FLAGS" | "$SED" 's/ -I/ -isystem /g'` + CFLAGS="$tmp_chg_FLAGS" + squeeze CFLAGS + fi + tmp_has_include="no" + tmp_chg_FLAGS="$CPPFLAGS" + for word1 in $tmp_chg_FLAGS; do + case "$word1" in + -I*) + tmp_has_include="yes" + ;; + esac + done + if test "$tmp_has_include" = "yes"; then + tmp_chg_FLAGS=`echo "$tmp_chg_FLAGS" | "$SED" 's/^-I/ -isystem /g'` + tmp_chg_FLAGS=`echo "$tmp_chg_FLAGS" | "$SED" 's/ -I/ -isystem /g'` + CPPFLAGS="$tmp_chg_FLAGS" + squeeze CPPFLAGS + fi + fi +]) + + +dnl CARES_COMPILER_WORKS_IFELSE ([ACTION-IF-WORKS], [ACTION-IF-NOT-WORKS]) +dnl ------------------------------------------------- +dnl Verify if the C compiler seems to work with the +dnl settings that are 'active' at the time the test +dnl is performed. + +AC_DEFUN([CARES_COMPILER_WORKS_IFELSE], [ + dnl compilation capability verification + tmp_compiler_works="unknown" + AC_COMPILE_IFELSE([ + AC_LANG_PROGRAM([[ + ]],[[ + int i = 1; + return i; + ]]) + ],[ + tmp_compiler_works="yes" + ],[ + tmp_compiler_works="no" + echo " " >&6 + sed 's/^/cc-fail: /' conftest.err >&6 + echo " " >&6 + ]) + dnl linking capability verification + if test "$tmp_compiler_works" = "yes"; then + AC_LINK_IFELSE([ + AC_LANG_PROGRAM([[ + ]],[[ + int i = 1; + return i; + ]]) + ],[ + tmp_compiler_works="yes" + ],[ + tmp_compiler_works="no" + echo " " >&6 + sed 's/^/link-fail: /' conftest.err >&6 + echo " " >&6 + ]) + fi + dnl only do runtime verification when not cross-compiling + if test "x$cross_compiling" != "xyes" && + test "$tmp_compiler_works" = "yes"; then + AC_RUN_IFELSE([ + AC_LANG_PROGRAM([[ +# ifdef __STDC__ +# include +# endif + ]],[[ + int i = 0; + exit(i); + ]]) + ],[ + tmp_compiler_works="yes" + ],[ + tmp_compiler_works="no" + echo " " >&6 + echo "run-fail: test program exited with status $ac_status" >&6 + echo " " >&6 + ]) + fi + dnl branch upon test result + if test "$tmp_compiler_works" = "yes"; then + ifelse($1,,:,[$1]) + ifelse($2,,,[else + $2]) + fi +]) + + +dnl CARES_SET_COMPILER_BASIC_OPTS +dnl ------------------------------------------------- +dnl Sets compiler specific options/flags which do not +dnl depend on configure's debug, optimize or warnings +dnl options. + +AC_DEFUN([CARES_SET_COMPILER_BASIC_OPTS], [ + AC_REQUIRE([CARES_CHECK_COMPILER])dnl + AC_REQUIRE([CARES_SHFUNC_SQUEEZE])dnl + # + if test "$compiler_id" != "unknown"; then + # + if test "$compiler_id" = "GNU_C" || + test "$compiler_id" = "CLANG"; then + CARES_CONVERT_INCLUDE_TO_ISYSTEM + fi + # + tmp_save_CPPFLAGS="$CPPFLAGS" + tmp_save_CFLAGS="$CFLAGS" + tmp_CPPFLAGS="" + tmp_CFLAGS="" + # + case "$compiler_id" in + # + CLANG) + # + dnl Disable warnings for unused arguments, otherwise clang will + dnl warn about compile-time arguments used during link-time, like + dnl -O and -g and -pedantic. + tmp_CFLAGS="$tmp_CFLAGS -Qunused-arguments" + ;; + # + DEC_C) + # + dnl Select strict ANSI C compiler mode + tmp_CFLAGS="$tmp_CFLAGS -std1" + dnl Turn off optimizer ANSI C aliasing rules + tmp_CFLAGS="$tmp_CFLAGS -noansi_alias" + dnl Generate warnings for missing function prototypes + tmp_CFLAGS="$tmp_CFLAGS -warnprotos" + dnl Change some warnings into fatal errors + tmp_CFLAGS="$tmp_CFLAGS -msg_fatal toofewargs,toomanyargs" + ;; + # + GNU_C) + # + dnl Placeholder + tmp_CFLAGS="$tmp_CFLAGS" + ;; + # + HP_UX_C) + # + dnl Disallow run-time dereferencing of null pointers + tmp_CFLAGS="$tmp_CFLAGS -z" + dnl Disable some remarks + dnl #4227: padding struct with n bytes to align member + dnl #4255: padding size of struct with n bytes to alignment boundary + tmp_CFLAGS="$tmp_CFLAGS +W 4227,4255" + ;; + # + IBM_C) + # + dnl Ensure that compiler optimizations are always thread-safe. + tmp_CPPFLAGS="$tmp_CPPFLAGS -qthreaded" + dnl Disable type based strict aliasing optimizations, using worst + dnl case aliasing assumptions when compiling. Type based aliasing + dnl would restrict the lvalues that could be safely used to access + dnl a data object. + tmp_CPPFLAGS="$tmp_CPPFLAGS -qnoansialias" + dnl Force compiler to stop after the compilation phase, without + dnl generating an object code file when compilation has errors. + tmp_CPPFLAGS="$tmp_CPPFLAGS -qhalt=e" + ;; + # + INTEL_UNIX_C) + # + dnl On unix this compiler uses gcc's header files, so + dnl we select ANSI C89 dialect plus GNU extensions. + tmp_CFLAGS="$tmp_CFLAGS -std=gnu89" + dnl Change some warnings into errors + dnl #140: too many arguments in function call + dnl #147: declaration is incompatible with 'previous one' + dnl #165: too few arguments in function call + dnl #266: function declared implicitly + tmp_CPPFLAGS="$tmp_CPPFLAGS -we 140,147,165,266" + dnl Disable some remarks + dnl #279: controlling expression is constant + dnl #981: operands are evaluated in unspecified order + dnl #1469: "cc" clobber ignored + tmp_CPPFLAGS="$tmp_CPPFLAGS -wd 279,981,1469" + ;; + # + INTEL_WINDOWS_C) + # + dnl Placeholder + tmp_CFLAGS="$tmp_CFLAGS" + ;; + # + LCC) + # + dnl Disallow run-time dereferencing of null pointers + tmp_CFLAGS="$tmp_CFLAGS -n" + ;; + # + SGI_MIPS_C) + # + dnl Placeholder + tmp_CFLAGS="$tmp_CFLAGS" + ;; + # + SGI_MIPSPRO_C) + # + dnl Placeholder + tmp_CFLAGS="$tmp_CFLAGS" + ;; + # + SUNPRO_C) + # + dnl Placeholder + tmp_CFLAGS="$tmp_CFLAGS" + ;; + # + TINY_C) + # + dnl Placeholder + tmp_CFLAGS="$tmp_CFLAGS" + ;; + # + WATCOM_UNIX_C) + # + dnl Placeholder + tmp_CFLAGS="$tmp_CFLAGS" + ;; + # + WATCOM_WINDOWS_C) + # + dnl Placeholder + tmp_CFLAGS="$tmp_CFLAGS" + ;; + # + esac + # + squeeze tmp_CPPFLAGS + squeeze tmp_CFLAGS + # + if test ! -z "$tmp_CFLAGS" || test ! -z "$tmp_CPPFLAGS"; then + AC_MSG_CHECKING([if compiler accepts some basic options]) + CPPFLAGS="$tmp_save_CPPFLAGS $tmp_CPPFLAGS" + CFLAGS="$tmp_save_CFLAGS $tmp_CFLAGS" + squeeze CPPFLAGS + squeeze CFLAGS + CARES_COMPILER_WORKS_IFELSE([ + AC_MSG_RESULT([yes]) + AC_MSG_NOTICE([compiler options added: $tmp_CFLAGS $tmp_CPPFLAGS]) + ],[ + AC_MSG_RESULT([no]) + AC_MSG_WARN([compiler options rejected: $tmp_CFLAGS $tmp_CPPFLAGS]) + dnl restore initial settings + CPPFLAGS="$tmp_save_CPPFLAGS" + CFLAGS="$tmp_save_CFLAGS" + ]) + fi + # + fi +]) + + +dnl CARES_SET_COMPILER_DEBUG_OPTS +dnl ------------------------------------------------- +dnl Sets compiler specific options/flags which depend +dnl on configure's debug option. + +AC_DEFUN([CARES_SET_COMPILER_DEBUG_OPTS], [ + AC_REQUIRE([CARES_CHECK_OPTION_DEBUG])dnl + AC_REQUIRE([CARES_CHECK_COMPILER])dnl + AC_REQUIRE([CARES_SHFUNC_SQUEEZE])dnl + # + if test "$compiler_id" != "unknown"; then + # + tmp_save_CFLAGS="$CFLAGS" + tmp_save_CPPFLAGS="$CPPFLAGS" + # + tmp_options="" + tmp_CFLAGS="$CFLAGS" + tmp_CPPFLAGS="$CPPFLAGS" + CARES_VAR_STRIP([tmp_CFLAGS],[$flags_dbg_all]) + CARES_VAR_STRIP([tmp_CPPFLAGS],[$flags_dbg_all]) + # + if test "$want_debug" = "yes"; then + AC_MSG_CHECKING([if compiler accepts debug enabling options]) + tmp_options="$flags_dbg_yes" + fi + if test "$want_debug" = "no"; then + AC_MSG_CHECKING([if compiler accepts debug disabling options]) + tmp_options="$flags_dbg_off" + fi + # + if test "$flags_prefer_cppflags" = "yes"; then + CPPFLAGS="$tmp_CPPFLAGS $tmp_options" + CFLAGS="$tmp_CFLAGS" + else + CPPFLAGS="$tmp_CPPFLAGS" + CFLAGS="$tmp_CFLAGS $tmp_options" + fi + squeeze CPPFLAGS + squeeze CFLAGS + CARES_COMPILER_WORKS_IFELSE([ + AC_MSG_RESULT([yes]) + AC_MSG_NOTICE([compiler options added: $tmp_options]) + ],[ + AC_MSG_RESULT([no]) + AC_MSG_WARN([compiler options rejected: $tmp_options]) + dnl restore initial settings + CPPFLAGS="$tmp_save_CPPFLAGS" + CFLAGS="$tmp_save_CFLAGS" + ]) + # + fi +]) + + +dnl CARES_SET_COMPILER_OPTIMIZE_OPTS +dnl ------------------------------------------------- +dnl Sets compiler specific options/flags which depend +dnl on configure's optimize option. + +AC_DEFUN([CARES_SET_COMPILER_OPTIMIZE_OPTS], [ + AC_REQUIRE([CARES_CHECK_OPTION_OPTIMIZE])dnl + AC_REQUIRE([CARES_CHECK_COMPILER])dnl + AC_REQUIRE([CARES_SHFUNC_SQUEEZE])dnl + # + if test "$compiler_id" != "unknown"; then + # + tmp_save_CFLAGS="$CFLAGS" + tmp_save_CPPFLAGS="$CPPFLAGS" + # + tmp_options="" + tmp_CFLAGS="$CFLAGS" + tmp_CPPFLAGS="$CPPFLAGS" + honor_optimize_option="yes" + # + dnl If optimization request setting has not been explicitly specified, + dnl it has been derived from the debug setting and initially assumed. + dnl This initially assumed optimizer setting will finally be ignored + dnl if CFLAGS or CPPFLAGS already hold optimizer flags. This implies + dnl that an initially assumed optimizer setting might not be honored. + # + if test "$want_optimize" = "assume_no" || + test "$want_optimize" = "assume_yes"; then + AC_MSG_CHECKING([if compiler optimizer assumed setting might be used]) + CARES_VAR_MATCH_IFELSE([tmp_CFLAGS],[$flags_opt_all],[ + honor_optimize_option="no" + ]) + CARES_VAR_MATCH_IFELSE([tmp_CPPFLAGS],[$flags_opt_all],[ + honor_optimize_option="no" + ]) + AC_MSG_RESULT([$honor_optimize_option]) + if test "$honor_optimize_option" = "yes"; then + if test "$want_optimize" = "assume_yes"; then + want_optimize="yes" + fi + if test "$want_optimize" = "assume_no"; then + want_optimize="no" + fi + fi + fi + # + if test "$honor_optimize_option" = "yes"; then + CARES_VAR_STRIP([tmp_CFLAGS],[$flags_opt_all]) + CARES_VAR_STRIP([tmp_CPPFLAGS],[$flags_opt_all]) + if test "$want_optimize" = "yes"; then + AC_MSG_CHECKING([if compiler accepts optimizer enabling options]) + tmp_options="$flags_opt_yes" + fi + if test "$want_optimize" = "no"; then + AC_MSG_CHECKING([if compiler accepts optimizer disabling options]) + tmp_options="$flags_opt_off" + fi + if test "$flags_prefer_cppflags" = "yes"; then + CPPFLAGS="$tmp_CPPFLAGS $tmp_options" + CFLAGS="$tmp_CFLAGS" + else + CPPFLAGS="$tmp_CPPFLAGS" + CFLAGS="$tmp_CFLAGS $tmp_options" + fi + squeeze CPPFLAGS + squeeze CFLAGS + CARES_COMPILER_WORKS_IFELSE([ + AC_MSG_RESULT([yes]) + AC_MSG_NOTICE([compiler options added: $tmp_options]) + ],[ + AC_MSG_RESULT([no]) + AC_MSG_WARN([compiler options rejected: $tmp_options]) + dnl restore initial settings + CPPFLAGS="$tmp_save_CPPFLAGS" + CFLAGS="$tmp_save_CFLAGS" + ]) + fi + # + fi +]) + + +dnl CARES_SET_COMPILER_WARNING_OPTS +dnl ------------------------------------------------- +dnl Sets compiler options/flags which depend on +dnl configure's warnings given option. + +AC_DEFUN([CARES_SET_COMPILER_WARNING_OPTS], [ + AC_REQUIRE([CARES_CHECK_OPTION_WARNINGS])dnl + AC_REQUIRE([CARES_CHECK_COMPILER])dnl + AC_REQUIRE([CARES_SHFUNC_SQUEEZE])dnl + # + if test "$compiler_id" != "unknown"; then + # + tmp_save_CPPFLAGS="$CPPFLAGS" + tmp_save_CFLAGS="$CFLAGS" + tmp_CPPFLAGS="" + tmp_CFLAGS="" + # + case "$compiler_id" in + # + CLANG) + # + if test "$want_warnings" = "yes"; then + tmp_CFLAGS="$tmp_CFLAGS -pedantic" + tmp_CFLAGS="$tmp_CFLAGS -Wall -Wextra" + tmp_CFLAGS="$tmp_CFLAGS -Wpointer-arith -Wwrite-strings" + tmp_CFLAGS="$tmp_CFLAGS -Wshadow" + tmp_CFLAGS="$tmp_CFLAGS -Winline -Wnested-externs" + tmp_CFLAGS="$tmp_CFLAGS -Wmissing-declarations" + tmp_CFLAGS="$tmp_CFLAGS -Wmissing-prototypes" + tmp_CFLAGS="$tmp_CFLAGS -Wno-long-long" + tmp_CFLAGS="$tmp_CFLAGS -Wfloat-equal" + tmp_CFLAGS="$tmp_CFLAGS -Wno-multichar -Wsign-compare" + tmp_CFLAGS="$tmp_CFLAGS -Wundef" + tmp_CFLAGS="$tmp_CFLAGS -Wno-format-nonliteral" + tmp_CFLAGS="$tmp_CFLAGS -Wendif-labels -Wstrict-prototypes" + tmp_CFLAGS="$tmp_CFLAGS -Wdeclaration-after-statement" + tmp_CFLAGS="$tmp_CFLAGS -Wcast-align" + tmp_CFLAGS="$tmp_CFLAGS -Wno-system-headers" + tmp_CFLAGS="$tmp_CFLAGS -Wshorten-64-to-32" + # + dnl Only clang 1.1 or later + if test "$compiler_num" -ge "101"; then + tmp_CFLAGS="$tmp_CFLAGS -Wunused" + fi + fi + ;; + # + DEC_C) + # + if test "$want_warnings" = "yes"; then + dnl Select a higher warning level than default level2 + tmp_CFLAGS="$tmp_CFLAGS -msg_enable level3" + fi + ;; + # + GNU_C) + # + if test "$want_warnings" = "yes"; then + # + dnl Do not enable -pedantic when cross-compiling with a gcc older + dnl than 3.0, to avoid warnings from third party system headers. + if test "x$cross_compiling" != "xyes" || + test "$compiler_num" -ge "300"; then + tmp_CFLAGS="$tmp_CFLAGS -pedantic" + fi + # + dnl Set of options we believe *ALL* gcc versions support: + tmp_CFLAGS="$tmp_CFLAGS -Wall -W" + # + dnl Only gcc 1.4 or later + if test "$compiler_num" -ge "104"; then + tmp_CFLAGS="$tmp_CFLAGS -Wpointer-arith -Wwrite-strings" + dnl If not cross-compiling with a gcc older than 3.0 + if test "x$cross_compiling" != "xyes" || + test "$compiler_num" -ge "300"; then + tmp_CFLAGS="$tmp_CFLAGS -Wunused -Wshadow" + fi + fi + # + dnl Only gcc 2.7 or later + if test "$compiler_num" -ge "207"; then + tmp_CFLAGS="$tmp_CFLAGS -Winline -Wnested-externs" + dnl If not cross-compiling with a gcc older than 3.0 + if test "x$cross_compiling" != "xyes" || + test "$compiler_num" -ge "300"; then + tmp_CFLAGS="$tmp_CFLAGS -Wmissing-declarations" + tmp_CFLAGS="$tmp_CFLAGS -Wmissing-prototypes" + fi + fi + # + dnl Only gcc 2.95 or later + if test "$compiler_num" -ge "295"; then + tmp_CFLAGS="$tmp_CFLAGS -Wno-long-long" + fi + # + dnl Only gcc 2.96 or later + if test "$compiler_num" -ge "296"; then + tmp_CFLAGS="$tmp_CFLAGS -Wfloat-equal" + tmp_CFLAGS="$tmp_CFLAGS -Wno-multichar -Wsign-compare" + dnl -Wundef used only if gcc is 2.96 or later since we get + dnl lots of "`_POSIX_C_SOURCE' is not defined" in system + dnl headers with gcc 2.95.4 on FreeBSD 4.9 + tmp_CFLAGS="$tmp_CFLAGS -Wundef" + fi + # + dnl Only gcc 2.97 or later + if test "$compiler_num" -ge "297"; then + tmp_CFLAGS="$tmp_CFLAGS -Wno-format-nonliteral" + fi + # + dnl Only gcc 3.0 or later + if test "$compiler_num" -ge "300"; then + dnl -Wunreachable-code seems totally unreliable on my gcc 3.3.2 on + dnl on i686-Linux as it gives us heaps with false positives. + dnl Also, on gcc 4.0.X it is totally unbearable and complains all + dnl over making it unusable for generic purposes. Let's not use it. + tmp_CFLAGS="$tmp_CFLAGS" + fi + # + dnl Only gcc 3.3 or later + if test "$compiler_num" -ge "303"; then + tmp_CFLAGS="$tmp_CFLAGS -Wendif-labels -Wstrict-prototypes" + fi + # + dnl Only gcc 3.4 or later + if test "$compiler_num" -ge "304"; then + tmp_CFLAGS="$tmp_CFLAGS -Wdeclaration-after-statement" + fi + # + dnl Only gcc 4.0 or later + if test "$compiler_num" -ge "400"; then + tmp_CFLAGS="$tmp_CFLAGS -Wstrict-aliasing=3" + fi + # + dnl Only gcc 4.2 or later + if test "$compiler_num" -ge "402"; then + tmp_CFLAGS="$tmp_CFLAGS -Wcast-align" + fi + # + dnl Only gcc 4.3 or later + if test "$compiler_num" -ge "403"; then + tmp_CFLAGS="$tmp_CFLAGS -Wtype-limits -Wold-style-declaration" + tmp_CFLAGS="$tmp_CFLAGS -Wmissing-parameter-type -Wempty-body" + tmp_CFLAGS="$tmp_CFLAGS -Wclobbered -Wignored-qualifiers" + tmp_CFLAGS="$tmp_CFLAGS -Wconversion -Wno-sign-conversion -Wvla" + fi + # + dnl Only gcc 4.5 or later + if test "$compiler_num" -ge "405"; then + dnl Only windows targets + if test "$curl_cv_have_def__WIN32" = "yes"; then + tmp_CFLAGS="$tmp_CFLAGS -Wno-pedantic-ms-format" + fi + fi + # + fi + # + dnl Do not issue warnings for code in system include paths. + if test "$compiler_num" -ge "300"; then + tmp_CFLAGS="$tmp_CFLAGS -Wno-system-headers" + else + dnl When cross-compiling with a gcc older than 3.0, disable + dnl some warnings triggered on third party system headers. + if test "x$cross_compiling" = "xyes"; then + if test "$compiler_num" -ge "104"; then + dnl gcc 1.4 or later + tmp_CFLAGS="$tmp_CFLAGS -Wno-unused -Wno-shadow" + fi + if test "$compiler_num" -ge "207"; then + dnl gcc 2.7 or later + tmp_CFLAGS="$tmp_CFLAGS -Wno-missing-declarations" + tmp_CFLAGS="$tmp_CFLAGS -Wno-missing-prototypes" + fi + fi + fi + ;; + # + HP_UX_C) + # + if test "$want_warnings" = "yes"; then + dnl Issue all warnings + tmp_CFLAGS="$tmp_CFLAGS +w1" + fi + ;; + # + IBM_C) + # + dnl Placeholder + tmp_CFLAGS="$tmp_CFLAGS" + ;; + # + INTEL_UNIX_C) + # + if test "$want_warnings" = "yes"; then + if test "$compiler_num" -gt "600"; then + dnl Show errors, warnings, and remarks + tmp_CPPFLAGS="$tmp_CPPFLAGS -Wall -w2" + dnl Perform extra compile-time code checking + tmp_CPPFLAGS="$tmp_CPPFLAGS -Wcheck" + dnl Warn on nested comments + tmp_CPPFLAGS="$tmp_CPPFLAGS -Wcomment" + dnl Show warnings relative to deprecated features + tmp_CPPFLAGS="$tmp_CPPFLAGS -Wdeprecated" + dnl Enable warnings for missing prototypes + tmp_CPPFLAGS="$tmp_CPPFLAGS -Wmissing-prototypes" + dnl Enable warnings for 64-bit portability issues + tmp_CPPFLAGS="$tmp_CPPFLAGS -Wp64" + dnl Enable warnings for questionable pointer arithmetic + tmp_CPPFLAGS="$tmp_CPPFLAGS -Wpointer-arith" + dnl Check for function return typw issues + tmp_CPPFLAGS="$tmp_CPPFLAGS -Wreturn-type" + dnl Warn on variable declarations hiding a previous one + tmp_CPPFLAGS="$tmp_CPPFLAGS -Wshadow" + dnl Warn when a variable is used before initialized + tmp_CPPFLAGS="$tmp_CPPFLAGS -Wuninitialized" + dnl Warn if a declared function is not used + tmp_CPPFLAGS="$tmp_CPPFLAGS -Wunused-function" + fi + fi + dnl Disable using EBP register in optimizations + tmp_CFLAGS="$tmp_CFLAGS -fno-omit-frame-pointer" + dnl Disable use of ANSI C aliasing rules in optimizations + tmp_CFLAGS="$tmp_CFLAGS -fno-strict-aliasing" + dnl Value-safe optimizations on floating-point data + tmp_CFLAGS="$tmp_CFLAGS -fp-model precise" + dnl Only icc 10.0 or later + if test "$compiler_num" -ge "1000"; then + dnl Disable vectorizer diagnostic information + tmp_CFLAGS="$tmp_CFLAGS -vec-report0" + fi + ;; + # + INTEL_WINDOWS_C) + # + dnl Placeholder + tmp_CFLAGS="$tmp_CFLAGS" + ;; + # + LCC) + # + if test "$want_warnings" = "yes"; then + dnl Highest warning level is double -A, next is single -A. + dnl Due to the big number of warnings these trigger on third + dnl party header files it is impractical for us to use any of + dnl them here. If you want them simply define it in CPPFLAGS. + tmp_CFLAGS="$tmp_CFLAGS" + fi + ;; + # + SGI_MIPS_C) + # + if test "$want_warnings" = "yes"; then + dnl Perform stricter semantic and lint-like checks + tmp_CFLAGS="$tmp_CFLAGS -fullwarn" + fi + ;; + # + SGI_MIPSPRO_C) + # + if test "$want_warnings" = "yes"; then + dnl Perform stricter semantic and lint-like checks + tmp_CFLAGS="$tmp_CFLAGS -fullwarn" + dnl Disable some remarks + dnl #1209: controlling expression is constant + tmp_CFLAGS="$tmp_CFLAGS -woff 1209" + fi + ;; + # + SUNPRO_C) + # + if test "$want_warnings" = "yes"; then + dnl Perform stricter semantic and lint-like checks + tmp_CFLAGS="$tmp_CFLAGS -v" + fi + ;; + # + TINY_C) + # + if test "$want_warnings" = "yes"; then + dnl Activate all warnings + tmp_CFLAGS="$tmp_CFLAGS -Wall" + dnl Make string constants be of type const char * + tmp_CFLAGS="$tmp_CFLAGS -Wwrite-strings" + dnl Warn use of unsupported GCC features ignored by TCC + tmp_CFLAGS="$tmp_CFLAGS -Wunsupported" + fi + ;; + # + WATCOM_UNIX_C) + # + if test "$want_warnings" = "yes"; then + dnl Issue all warnings + tmp_CFLAGS="$tmp_CFLAGS -Wall -Wextra" + fi + ;; + # + WATCOM_WINDOWS_C) + # + dnl Placeholder + tmp_CFLAGS="$tmp_CFLAGS" + ;; + # + esac + # + squeeze tmp_CPPFLAGS + squeeze tmp_CFLAGS + # + if test ! -z "$tmp_CFLAGS" || test ! -z "$tmp_CPPFLAGS"; then + AC_MSG_CHECKING([if compiler accepts strict warning options]) + CPPFLAGS="$tmp_save_CPPFLAGS $tmp_CPPFLAGS" + CFLAGS="$tmp_save_CFLAGS $tmp_CFLAGS" + squeeze CPPFLAGS + squeeze CFLAGS + CARES_COMPILER_WORKS_IFELSE([ + AC_MSG_RESULT([yes]) + AC_MSG_NOTICE([compiler options added: $tmp_CFLAGS $tmp_CPPFLAGS]) + ],[ + AC_MSG_RESULT([no]) + AC_MSG_WARN([compiler options rejected: $tmp_CFLAGS $tmp_CPPFLAGS]) + dnl restore initial settings + CPPFLAGS="$tmp_save_CPPFLAGS" + CFLAGS="$tmp_save_CFLAGS" + ]) + fi + # + fi +]) + + +dnl CARES_SHFUNC_SQUEEZE +dnl ------------------------------------------------- +dnl Declares a shell function squeeze() which removes +dnl redundant whitespace out of a shell variable. + +AC_DEFUN([CARES_SHFUNC_SQUEEZE], [ +squeeze() { + _sqz_result="" + eval _sqz_input=\[$][$]1 + for _sqz_token in $_sqz_input; do + if test -z "$_sqz_result"; then + _sqz_result="$_sqz_token" + else + _sqz_result="$_sqz_result $_sqz_token" + fi + done + eval [$]1=\$_sqz_result + return 0 +} +]) + + +dnl CARES_CHECK_CURLDEBUG +dnl ------------------------------------------------- +dnl Settings which depend on configure's curldebug given +dnl option, and other additional configure pre-requisites. +dnl Using the curl debug memory tracking feature in c-ares +dnl is a hack that actually can only be used/enabled when +dnl c-ares is built directly in curl's CVS tree, as a static +dnl library or as a shared one on those systems on which +dnl shared libraries support undefined symbols, along with +dnl an equally configured libcurl. + +AC_DEFUN([CARES_CHECK_CURLDEBUG], [ + AC_REQUIRE([XC_LIBTOOL])dnl + AC_REQUIRE([CARES_SHFUNC_SQUEEZE])dnl + cares_builddir=`pwd` + supports_curldebug="unknown" + if test "$want_curldebug" = "yes"; then + if test "x$enable_shared" != "xno" && + test "x$enable_shared" != "xyes"; then + AC_MSG_WARN([unknown enable_shared setting.]) + supports_curldebug="no" + fi + if test "x$enable_static" != "xno" && + test "x$enable_static" != "xyes"; then + AC_MSG_WARN([unknown enable_static setting.]) + supports_curldebug="no" + fi + if test "$supports_curldebug" != "no"; then + if test "$enable_shared" = "yes" && + test "x$xc_lt_shlib_use_no_undefined" = 'xyes'; then + supports_curldebug="no" + AC_MSG_WARN([shared library does not support undefined symbols.]) + fi + if test ! -f "$srcdir/../include/curl/curlbuild.h.dist"; then + AC_MSG_WARN([c-ares source not embedded in curl's CVS tree.]) + supports_curldebug="no" + elif test ! -f "$srcdir/../include/curl/Makefile.in"; then + AC_MSG_WARN([curl's buildconf has not been run.]) + supports_curldebug="no" + elif test ! -f "$cares_builddir/../libcurl.pc" || + test ! -f "$cares_builddir/../include/curl/curlbuild.h"; then + AC_MSG_WARN([curl's configure has not been run.]) + supports_curldebug="no" + elif test ! -f "$cares_builddir/../lib/curl_config.h"; then + AC_MSG_WARN([libcurl's curl_config.h is missing.]) + supports_curldebug="no" + elif test ! -f "$cares_builddir/../config.status"; then + AC_MSG_WARN([curl's config.status is missing.]) + supports_curldebug="no" + fi + if test "$supports_curldebug" != "no"; then + grep '^#define USE_ARES' "$cares_builddir/../lib/curl_config.h" >/dev/null + if test "$?" -ne "0"; then + AC_MSG_WARN([libcurl configured without c-ares support.]) + supports_curldebug="no" + fi + fi + if test "$supports_curldebug" != "no"; then + grep 'CPPFLAGS.*CURLDEBUG' "$cares_builddir/../config.status" >/dev/null + if test "$?" -ne "0"; then + AC_MSG_WARN([libcurl configured without curldebug support.]) + supports_curldebug="no" + fi + fi + fi + fi + # + if test "$want_curldebug" = "yes"; then + AC_MSG_CHECKING([if curl debug memory tracking can be enabled]) + test "$supports_curldebug" = "no" || supports_curldebug="yes" + AC_MSG_RESULT([$supports_curldebug]) + if test "$supports_curldebug" = "no"; then + AC_MSG_WARN([cannot enable curl debug memory tracking.]) + want_curldebug="no" + fi + fi + # + if test "$want_curldebug" = "yes"; then + dnl TODO: Verify if the BUILDING_LIBCURL definition is still required. + AC_DEFINE(BUILDING_LIBCURL, 1, [when building as static part of libcurl]) + CPPFLAGS="-DCURLDEBUG $CPPFLAGS" + squeeze CPPFLAGS + fi + # + if test "$want_debug" = "yes"; then + CPPFLAGS="-DDEBUGBUILD $CPPFLAGS" + squeeze CPPFLAGS + fi +]) + + +dnl CARES_CHECK_COMPILER_HALT_ON_ERROR +dnl ------------------------------------------------- +dnl Verifies if the compiler actually halts after the +dnl compilation phase without generating any object +dnl code file, when the source compiles with errors. + +AC_DEFUN([CARES_CHECK_COMPILER_HALT_ON_ERROR], [ + AC_MSG_CHECKING([if compiler halts on compilation errors]) + AC_COMPILE_IFELSE([ + AC_LANG_PROGRAM([[ + ]],[[ + force compilation error + ]]) + ],[ + AC_MSG_RESULT([no]) + AC_MSG_ERROR([compiler does not halt on compilation errors.]) + ],[ + AC_MSG_RESULT([yes]) + ]) +]) + + +dnl CARES_CHECK_COMPILER_ARRAY_SIZE_NEGATIVE +dnl ------------------------------------------------- +dnl Verifies if the compiler actually halts after the +dnl compilation phase without generating any object +dnl code file, when the source code tries to define a +dnl type for a constant array with negative dimension. + +AC_DEFUN([CARES_CHECK_COMPILER_ARRAY_SIZE_NEGATIVE], [ + AC_REQUIRE([CARES_CHECK_COMPILER_HALT_ON_ERROR])dnl + AC_MSG_CHECKING([if compiler halts on negative sized arrays]) + AC_COMPILE_IFELSE([ + AC_LANG_PROGRAM([[ + typedef char bad_t[sizeof(char) == sizeof(int) ? -1 : -1 ]; + ]],[[ + bad_t dummy; + ]]) + ],[ + AC_MSG_RESULT([no]) + AC_MSG_ERROR([compiler does not halt on negative sized arrays.]) + ],[ + AC_MSG_RESULT([yes]) + ]) +]) + + +dnl CARES_CHECK_COMPILER_STRUCT_MEMBER_SIZE +dnl ------------------------------------------------- +dnl Verifies if the compiler is capable of handling the +dnl size of a struct member, struct which is a function +dnl result, as a compilation-time condition inside the +dnl type definition of a constant array. + +AC_DEFUN([CARES_CHECK_COMPILER_STRUCT_MEMBER_SIZE], [ + AC_REQUIRE([CARES_CHECK_COMPILER_ARRAY_SIZE_NEGATIVE])dnl + AC_MSG_CHECKING([if compiler struct member size checking works]) + tst_compiler_check_one_works="unknown" + AC_COMPILE_IFELSE([ + AC_LANG_PROGRAM([[ + struct mystruct { + int mi; + char mc; + struct mystruct *next; + }; + struct mystruct myfunc(); + typedef char good_t1[sizeof(myfunc().mi) == sizeof(int) ? 1 : -1 ]; + typedef char good_t2[sizeof(myfunc().mc) == sizeof(char) ? 1 : -1 ]; + ]],[[ + good_t1 dummy1; + good_t2 dummy2; + ]]) + ],[ + tst_compiler_check_one_works="yes" + ],[ + tst_compiler_check_one_works="no" + sed 's/^/cc-src: /' conftest.$ac_ext >&6 + sed 's/^/cc-err: /' conftest.err >&6 + ]) + tst_compiler_check_two_works="unknown" + AC_COMPILE_IFELSE([ + AC_LANG_PROGRAM([[ + struct mystruct { + int mi; + char mc; + struct mystruct *next; + }; + struct mystruct myfunc(); + typedef char bad_t1[sizeof(myfunc().mi) != sizeof(int) ? 1 : -1 ]; + typedef char bad_t2[sizeof(myfunc().mc) != sizeof(char) ? 1 : -1 ]; + ]],[[ + bad_t1 dummy1; + bad_t2 dummy2; + ]]) + ],[ + tst_compiler_check_two_works="no" + ],[ + tst_compiler_check_two_works="yes" + ]) + if test "$tst_compiler_check_one_works" = "yes" && + test "$tst_compiler_check_two_works" = "yes"; then + AC_MSG_RESULT([yes]) + else + AC_MSG_RESULT([no]) + AC_MSG_ERROR([compiler fails struct member size checking.]) + fi +]) + + +dnl CARES_CHECK_COMPILER_SYMBOL_HIDING +dnl ------------------------------------------------- +dnl Verify if compiler supports hiding library internal symbols, setting +dnl shell variable supports_symbol_hiding value as appropriate, as well as +dnl variables symbol_hiding_CFLAGS and symbol_hiding_EXTERN when supported. + +AC_DEFUN([CARES_CHECK_COMPILER_SYMBOL_HIDING], [ + AC_REQUIRE([CARES_CHECK_COMPILER])dnl + AC_BEFORE([$0],[CARES_CONFIGURE_SYMBOL_HIDING])dnl + AC_MSG_CHECKING([if compiler supports hiding library internal symbols]) + supports_symbol_hiding="no" + symbol_hiding_CFLAGS="" + symbol_hiding_EXTERN="" + tmp_CFLAGS="" + tmp_EXTERN="" + case "$compiler_id" in + CLANG) + dnl All versions of clang support -fvisibility= + tmp_EXTERN="__attribute__ ((__visibility__ (\"default\")))" + tmp_CFLAGS="-fvisibility=hidden" + supports_symbol_hiding="yes" + ;; + GNU_C) + dnl Only gcc 3.4 or later + if test "$compiler_num" -ge "304"; then + if $CC --help --verbose 2>&1 | grep fvisibility= > /dev/null ; then + tmp_EXTERN="__attribute__ ((__visibility__ (\"default\")))" + tmp_CFLAGS="-fvisibility=hidden" + supports_symbol_hiding="yes" + fi + fi + ;; + INTEL_UNIX_C) + dnl Only icc 9.0 or later + if test "$compiler_num" -ge "900"; then + if $CC --help --verbose 2>&1 | grep fvisibility= > /dev/null ; then + tmp_save_CFLAGS="$CFLAGS" + CFLAGS="$CFLAGS -fvisibility=hidden" + AC_LINK_IFELSE([ + AC_LANG_PROGRAM([[ +# include + ]],[[ + printf("icc fvisibility bug test"); + ]]) + ],[ + tmp_EXTERN="__attribute__ ((__visibility__ (\"default\")))" + tmp_CFLAGS="-fvisibility=hidden" + supports_symbol_hiding="yes" + ]) + CFLAGS="$tmp_save_CFLAGS" + fi + fi + ;; + SUNPRO_C) + if $CC 2>&1 | grep flags >/dev/null && $CC -flags | grep xldscope= >/dev/null ; then + tmp_EXTERN="__global" + tmp_CFLAGS="-xldscope=hidden" + supports_symbol_hiding="yes" + fi + ;; + esac + if test "$supports_symbol_hiding" = "yes"; then + tmp_save_CFLAGS="$CFLAGS" + CFLAGS="$tmp_save_CFLAGS $tmp_CFLAGS" + squeeze CFLAGS + AC_COMPILE_IFELSE([ + AC_LANG_PROGRAM([[ + $tmp_EXTERN char *dummy(char *buff); + char *dummy(char *buff) + { + if(buff) + return ++buff; + else + return buff; + } + ]],[[ + char b[16]; + char *r = dummy(&b[0]); + if(r) + return (int)*r; + ]]) + ],[ + supports_symbol_hiding="yes" + if test -f conftest.err; then + grep 'visibility' conftest.err >/dev/null + if test "$?" -eq "0"; then + supports_symbol_hiding="no" + fi + fi + ],[ + supports_symbol_hiding="no" + echo " " >&6 + sed 's/^/cc-src: /' conftest.$ac_ext >&6 + sed 's/^/cc-err: /' conftest.err >&6 + echo " " >&6 + ]) + CFLAGS="$tmp_save_CFLAGS" + fi + if test "$supports_symbol_hiding" = "yes"; then + AC_MSG_RESULT([yes]) + symbol_hiding_CFLAGS="$tmp_CFLAGS" + symbol_hiding_EXTERN="$tmp_EXTERN" + else + AC_MSG_RESULT([no]) + fi +]) + + +dnl CARES_CHECK_COMPILER_PROTOTYPE_MISMATCH +dnl ------------------------------------------------- +dnl Verifies if the compiler actually halts after the +dnl compilation phase without generating any object +dnl code file, when the source code tries to redefine +dnl a prototype which does not match previous one. + +AC_DEFUN([CARES_CHECK_COMPILER_PROTOTYPE_MISMATCH], [ + AC_REQUIRE([CARES_CHECK_COMPILER_HALT_ON_ERROR])dnl + AC_MSG_CHECKING([if compiler halts on function prototype mismatch]) + AC_COMPILE_IFELSE([ + AC_LANG_PROGRAM([[ +# include + int rand(int n); + int rand(int n) + { + if(n) + return ++n; + else + return n; + } + ]],[[ + int i[2]; + int j = rand(i[0]); + if(j) + return j; + ]]) + ],[ + AC_MSG_RESULT([no]) + AC_MSG_ERROR([compiler does not halt on function prototype mismatch.]) + ],[ + AC_MSG_RESULT([yes]) + ]) +]) + + +dnl CARES_VAR_MATCH (VARNAME, VALUE) +dnl ------------------------------------------------- +dnl Verifies if shell variable VARNAME contains VALUE. +dnl Contents of variable VARNAME and VALUE are handled +dnl as whitespace separated lists of words. If at least +dnl one word of VALUE is present in VARNAME the match +dnl is considered positive, otherwise false. + +AC_DEFUN([CARES_VAR_MATCH], [ + ac_var_match_word="no" + for word1 in $[$1]; do + for word2 in [$2]; do + if test "$word1" = "$word2"; then + ac_var_match_word="yes" + fi + done + done +]) + + +dnl CARES_VAR_MATCH_IFELSE (VARNAME, VALUE, +dnl [ACTION-IF-MATCH], [ACTION-IF-NOT-MATCH]) +dnl ------------------------------------------------- +dnl This performs a CURL_VAR_MATCH check and executes +dnl first branch if the match is positive, otherwise +dnl the second branch is executed. + +AC_DEFUN([CARES_VAR_MATCH_IFELSE], [ + CARES_VAR_MATCH([$1],[$2]) + if test "$ac_var_match_word" = "yes"; then + ifelse($3,,:,[$3]) + ifelse($4,,,[else + $4]) + fi +]) + + +dnl CARES_VAR_STRIP (VARNAME, VALUE) +dnl ------------------------------------------------- +dnl Contents of variable VARNAME and VALUE are handled +dnl as whitespace separated lists of words. Each word +dnl from VALUE is removed from VARNAME when present. + +AC_DEFUN([CARES_VAR_STRIP], [ + AC_REQUIRE([CARES_SHFUNC_SQUEEZE])dnl + ac_var_stripped="" + for word1 in $[$1]; do + ac_var_strip_word="no" + for word2 in [$2]; do + if test "$word1" = "$word2"; then + ac_var_strip_word="yes" + fi + done + if test "$ac_var_strip_word" = "no"; then + ac_var_stripped="$ac_var_stripped $word1" + fi + done + dnl squeeze whitespace out of result + [$1]="$ac_var_stripped" + squeeze [$1] +]) + diff --git a/src/c-ares/m4/cares-confopts.m4 b/src/c-ares/m4/cares-confopts.m4 new file mode 100644 index 000000000..135036a74 --- /dev/null +++ b/src/c-ares/m4/cares-confopts.m4 @@ -0,0 +1,396 @@ +#*************************************************************************** +# +# Copyright (C) 2008 - 2013 by Daniel Stenberg et al +# +# Permission to use, copy, modify, and distribute this software and its +# documentation for any purpose and without fee is hereby granted, provided +# that the above copyright notice appear in all copies and that both that +# copyright notice and this permission notice appear in supporting +# documentation, and that the name of M.I.T. not be used in advertising or +# publicity pertaining to distribution of the software without specific, +# written prior permission. M.I.T. makes no representations about the +# suitability of this software for any purpose. It is provided "as is" +# without express or implied warranty. +# +#*************************************************************************** + +# File version for 'aclocal' use. Keep it a single number. +# serial 11 + + +dnl CARES_CHECK_OPTION_CURLDEBUG +dnl ------------------------------------------------- +dnl Verify if configure has been invoked with option +dnl --enable-curldebug or --disable-curldebug, and set +dnl shell variable want_curldebug value as appropriate. + +AC_DEFUN([CARES_CHECK_OPTION_CURLDEBUG], [ + AC_BEFORE([$0],[CARES_CHECK_CURLDEBUG])dnl + AC_MSG_CHECKING([whether to enable curl debug memory tracking]) + OPT_CURLDEBUG_BUILD="default" + AC_ARG_ENABLE(curldebug, +AC_HELP_STRING([--enable-curldebug],[Enable curl debug memory tracking]) +AC_HELP_STRING([--disable-curldebug],[Disable curl debug memory tracking]), + OPT_CURLDEBUG_BUILD=$enableval) + case "$OPT_CURLDEBUG_BUILD" in + no) + dnl --disable-curldebug option used + want_curldebug="no" + ;; + default) + dnl configure option not specified + want_curldebug="no" + ;; + *) + dnl --enable-curldebug option used. + dnl The use of this option value is a request to enable curl's + dnl debug memory tracking for the c-ares library. This is a big + dnl hack that can only be done when a whole bunch of requisites + dnl are simultaneously satisfied. Later on, these requisites are + dnl verified and if they are not fully satisfied the option will + dnl be ignored and act as if --disable-curldebug had been given + dnl setting shell variable want_curldebug to 'no'. + want_curldebug="yes" + ;; + esac + AC_MSG_RESULT([$want_curldebug]) +]) + + +dnl CARES_CHECK_OPTION_DEBUG +dnl ------------------------------------------------- +dnl Verify if configure has been invoked with option +dnl --enable-debug or --disable-debug, and set shell +dnl variable want_debug value as appropriate. + +AC_DEFUN([CARES_CHECK_OPTION_DEBUG], [ + AC_BEFORE([$0],[CARES_CHECK_OPTION_WARNINGS])dnl + AC_BEFORE([$0],[CARES_CHECK_OPTION_CURLDEBUG])dnl + AC_BEFORE([$0],[XC_CHECK_PROG_CC])dnl + AC_MSG_CHECKING([whether to enable debug build options]) + OPT_DEBUG_BUILD="default" + AC_ARG_ENABLE(debug, +AC_HELP_STRING([--enable-debug],[Enable debug build options]) +AC_HELP_STRING([--disable-debug],[Disable debug build options]), + OPT_DEBUG_BUILD=$enableval) + case "$OPT_DEBUG_BUILD" in + no) + dnl --disable-debug option used + want_debug="no" + ;; + default) + dnl configure option not specified + want_debug="no" + ;; + *) + dnl --enable-debug option used + want_debug="yes" + ;; + esac + AC_MSG_RESULT([$want_debug]) +]) + + +dnl CARES_CHECK_OPTION_NONBLOCKING +dnl ------------------------------------------------- +dnl Verify if configure has been invoked with option +dnl --enable-nonblocking or --disable-nonblocking, and +dnl set shell variable want_nonblocking as appropriate. + +AC_DEFUN([CARES_CHECK_OPTION_NONBLOCKING], [ + AC_BEFORE([$0],[CARES_CHECK_NONBLOCKING_SOCKET])dnl + AC_MSG_CHECKING([whether to enable non-blocking communications]) + OPT_NONBLOCKING="default" + AC_ARG_ENABLE(nonblocking, +AC_HELP_STRING([--enable-nonblocking],[Enable non-blocking communications]) +AC_HELP_STRING([--disable-nonblocking],[Disable non-blocking communications]), + OPT_NONBLOCKING=$enableval) + case "$OPT_NONBLOCKING" in + no) + dnl --disable-nonblocking option used + want_nonblocking="no" + ;; + default) + dnl configure option not specified + want_nonblocking="yes" + ;; + *) + dnl --enable-nonblocking option used + want_nonblocking="yes" + ;; + esac + AC_MSG_RESULT([$want_nonblocking]) +]) + + +dnl CARES_CHECK_OPTION_OPTIMIZE +dnl ------------------------------------------------- +dnl Verify if configure has been invoked with option +dnl --enable-optimize or --disable-optimize, and set +dnl shell variable want_optimize value as appropriate. + +AC_DEFUN([CARES_CHECK_OPTION_OPTIMIZE], [ + AC_REQUIRE([CARES_CHECK_OPTION_DEBUG])dnl + AC_BEFORE([$0],[XC_CHECK_PROG_CC])dnl + AC_MSG_CHECKING([whether to enable compiler optimizer]) + OPT_COMPILER_OPTIMIZE="default" + AC_ARG_ENABLE(optimize, +AC_HELP_STRING([--enable-optimize(=OPT)],[Enable compiler optimizations (default=-O2)]) +AC_HELP_STRING([--disable-optimize],[Disable compiler optimizations]), + OPT_COMPILER_OPTIMIZE=$enableval) + case "$OPT_COMPILER_OPTIMIZE" in + no) + dnl --disable-optimize option used. We will handle this as + dnl a request to disable compiler optimizations if possible. + dnl If the compiler is known CFLAGS and CPPFLAGS will be + dnl overridden, otherwise this can not be honored. + want_optimize="no" + AC_MSG_RESULT([no]) + ;; + default) + dnl configure's optimize option not specified. Initially we will + dnl handle this as a a request contrary to configure's setting + dnl for --enable-debug. IOW, initially, for debug-enabled builds + dnl this will be handled as a request to disable optimizations if + dnl possible, and for debug-disabled builds this will be handled + dnl initially as a request to enable optimizations if possible. + dnl Finally, if the compiler is known and CFLAGS and CPPFLAGS do + dnl not have any optimizer flag the request will be honored, in + dnl any other case the request can not be honored. + dnl IOW, existing optimizer flags defined in CFLAGS or CPPFLAGS + dnl will always take precedence over any initial assumption. + if test "$want_debug" = "yes"; then + want_optimize="assume_no" + AC_MSG_RESULT([not specified (assuming no)]) + else + want_optimize="assume_yes" + AC_MSG_RESULT([not specified (assuming yes)]) + fi + ;; + *) + dnl --enable-optimize option used. We will handle this as + dnl a request to enable compiler optimizations if possible. + dnl If the compiler is known CFLAGS and CPPFLAGS will be + dnl overridden, otherwise this can not be honored. + want_optimize="yes" + AC_MSG_RESULT([yes]) + ;; + esac +]) + + +dnl CARES_CHECK_OPTION_SYMBOL_HIDING +dnl ------------------------------------------------- +dnl Verify if configure has been invoked with option +dnl --enable-symbol-hiding or --disable-symbol-hiding, +dnl setting shell variable want_symbol_hiding value. + +AC_DEFUN([CARES_CHECK_OPTION_SYMBOL_HIDING], [ + AC_BEFORE([$0],[CARES_CHECK_COMPILER_SYMBOL_HIDING])dnl + AC_MSG_CHECKING([whether to enable hiding of library internal symbols]) + OPT_SYMBOL_HIDING="default" + AC_ARG_ENABLE(symbol-hiding, +AC_HELP_STRING([--enable-symbol-hiding],[Enable hiding of library internal symbols]) +AC_HELP_STRING([--disable-symbol-hiding],[Disable hiding of library internal symbols]), + OPT_SYMBOL_HIDING=$enableval) + case "$OPT_SYMBOL_HIDING" in + no) + dnl --disable-symbol-hiding option used. + dnl This is an indication to not attempt hiding of library internal + dnl symbols. Default symbol visibility will be used, which normally + dnl exposes all library internal symbols. + want_symbol_hiding="no" + AC_MSG_RESULT([no]) + ;; + default) + dnl configure's symbol-hiding option not specified. + dnl Handle this as if --enable-symbol-hiding option was given. + want_symbol_hiding="yes" + AC_MSG_RESULT([yes]) + ;; + *) + dnl --enable-symbol-hiding option used. + dnl This is an indication to attempt hiding of library internal + dnl symbols. This is only supported on some compilers/linkers. + want_symbol_hiding="yes" + AC_MSG_RESULT([yes]) + ;; + esac +]) + + +dnl CARES_CHECK_OPTION_EXPOSE_STATICS +dnl ------------------------------------------------- +dnl Verify if configure has been invoked with option +dnl --enable-expose-statics or --disable-expose-statics, +dnl setting shell variable want_expose_statics value. + +AC_DEFUN([CARES_CHECK_OPTION_EXPOSE_STATICS], [ + AC_MSG_CHECKING([whether to expose internal static functions for testing]) + OPT_EXPOSE_STATICS="default" + AC_ARG_ENABLE(expose-statics, +AC_HELP_STRING([--enable-expose-statics],[Enable exposure of internal static functions for testing]) +AC_HELP_STRING([--disable-expose-statics],[Disable exposure of internal static functions for testing]), + OPT_EXPOSE_STATICS=$enableval) + case "$OPT_EXPOSE_STATICS" in + no) + dnl --disable-expose-statics option used. + want_expose_statics="no" + AC_MSG_RESULT([no]) + ;; + default) + dnl configure's expose-statics option not specified. + dnl Handle this as if --disable-expose-statics option was given. + want_expose_statics="no" + AC_MSG_RESULT([no]) + ;; + *) + dnl --enable-expose-statics option used. + want_expose_statics="yes" + AC_MSG_RESULT([yes]) + ;; + esac + if test "$want_expose_statics" = "yes"; then + AC_DEFINE_UNQUOTED(CARES_EXPOSE_STATICS, 1, + [Defined for build that exposes internal static functions for testing.]) + fi +]) + + +dnl CARES_CHECK_OPTION_WARNINGS +dnl ------------------------------------------------- +dnl Verify if configure has been invoked with option +dnl --enable-warnings or --disable-warnings, and set +dnl shell variable want_warnings as appropriate. + +AC_DEFUN([CARES_CHECK_OPTION_WARNINGS], [ + AC_REQUIRE([CARES_CHECK_OPTION_DEBUG])dnl + AC_BEFORE([$0],[CARES_CHECK_OPTION_WERROR])dnl + AC_BEFORE([$0],[XC_CHECK_PROG_CC])dnl + AC_MSG_CHECKING([whether to enable strict compiler warnings]) + OPT_COMPILER_WARNINGS="default" + AC_ARG_ENABLE(warnings, +AC_HELP_STRING([--enable-warnings],[Enable strict compiler warnings]) +AC_HELP_STRING([--disable-warnings],[Disable strict compiler warnings]), + OPT_COMPILER_WARNINGS=$enableval) + case "$OPT_COMPILER_WARNINGS" in + no) + dnl --disable-warnings option used + want_warnings="no" + ;; + default) + dnl configure option not specified, so + dnl use same setting as --enable-debug + want_warnings="$want_debug" + ;; + *) + dnl --enable-warnings option used + want_warnings="yes" + ;; + esac + AC_MSG_RESULT([$want_warnings]) +]) + +dnl CARES_CHECK_OPTION_WERROR +dnl ------------------------------------------------- +dnl Verify if configure has been invoked with option +dnl --enable-werror or --disable-werror, and set +dnl shell variable want_werror as appropriate. + +AC_DEFUN([CARES_CHECK_OPTION_WERROR], [ + AC_BEFORE([$0],[CARES_CHECK_COMPILER])dnl + AC_MSG_CHECKING([whether to enable compiler warnings as errors]) + OPT_COMPILER_WERROR="default" + AC_ARG_ENABLE(werror, +AC_HELP_STRING([--enable-werror],[Enable compiler warnings as errors]) +AC_HELP_STRING([--disable-werror],[Disable compiler warnings as errors]), + OPT_COMPILER_WERROR=$enableval) + case "$OPT_COMPILER_WERROR" in + no) + dnl --disable-werror option used + want_werror="no" + ;; + default) + dnl configure option not specified + want_werror="no" + ;; + *) + dnl --enable-werror option used + want_werror="yes" + ;; + esac + AC_MSG_RESULT([$want_werror]) +]) + + +dnl CARES_CHECK_NONBLOCKING_SOCKET +dnl ------------------------------------------------- +dnl Check for how to set a socket into non-blocking state. + +AC_DEFUN([CARES_CHECK_NONBLOCKING_SOCKET], [ + AC_REQUIRE([CARES_CHECK_OPTION_NONBLOCKING])dnl + AC_REQUIRE([CARES_CHECK_FUNC_FCNTL])dnl + AC_REQUIRE([CARES_CHECK_FUNC_IOCTL])dnl + AC_REQUIRE([CARES_CHECK_FUNC_IOCTLSOCKET])dnl + AC_REQUIRE([CARES_CHECK_FUNC_IOCTLSOCKET_CAMEL])dnl + AC_REQUIRE([CARES_CHECK_FUNC_SETSOCKOPT])dnl + # + tst_method="unknown" + if test "$want_nonblocking" = "yes"; then + AC_MSG_CHECKING([how to set a socket into non-blocking mode]) + if test "x$ac_cv_func_fcntl_o_nonblock" = "xyes"; then + tst_method="fcntl O_NONBLOCK" + elif test "x$ac_cv_func_ioctl_fionbio" = "xyes"; then + tst_method="ioctl FIONBIO" + elif test "x$ac_cv_func_ioctlsocket_fionbio" = "xyes"; then + tst_method="ioctlsocket FIONBIO" + elif test "x$ac_cv_func_ioctlsocket_camel_fionbio" = "xyes"; then + tst_method="IoctlSocket FIONBIO" + elif test "x$ac_cv_func_setsockopt_so_nonblock" = "xyes"; then + tst_method="setsockopt SO_NONBLOCK" + fi + AC_MSG_RESULT([$tst_method]) + if test "$tst_method" = "unknown"; then + AC_MSG_WARN([cannot determine non-blocking socket method.]) + fi + fi + if test "$tst_method" = "unknown"; then + AC_DEFINE_UNQUOTED(USE_BLOCKING_SOCKETS, 1, + [Define to disable non-blocking sockets.]) + AC_MSG_WARN([non-blocking sockets disabled.]) + fi +]) + + +dnl CARES_CONFIGURE_SYMBOL_HIDING +dnl ------------------------------------------------- +dnl Depending on --enable-symbol-hiding or --disable-symbol-hiding +dnl configure option, and compiler capability to actually honor such +dnl option, this will modify compiler flags as appropriate and also +dnl provide needed definitions for configuration and Makefile.am files. +dnl This macro should not be used until all compilation tests have +dnl been done to prevent interferences on other tests. + +AC_DEFUN([CARES_CONFIGURE_SYMBOL_HIDING], [ + AC_MSG_CHECKING([whether hiding of library internal symbols will actually happen]) + CFLAG_CARES_SYMBOL_HIDING="" + doing_symbol_hiding="no" + if test x"$ac_cv_native_windows" != "xyes" && + test "$want_symbol_hiding" = "yes" && + test "$supports_symbol_hiding" = "yes"; then + doing_symbol_hiding="yes" + CFLAG_CARES_SYMBOL_HIDING="$symbol_hiding_CFLAGS" + AC_DEFINE_UNQUOTED(CARES_SYMBOL_SCOPE_EXTERN, $symbol_hiding_EXTERN, + [Definition to make a library symbol externally visible.]) + AC_MSG_RESULT([yes]) + else + AC_MSG_RESULT([no]) + fi + AM_CONDITIONAL(DOING_CARES_SYMBOL_HIDING, test x$doing_symbol_hiding = xyes) + AC_SUBST(CFLAG_CARES_SYMBOL_HIDING) + if test "$doing_symbol_hiding" = "yes"; then + AC_DEFINE_UNQUOTED(CARES_SYMBOL_HIDING, 1, + [Defined for build with symbol hiding.]) + fi +]) + diff --git a/src/c-ares/m4/cares-functions.m4 b/src/c-ares/m4/cares-functions.m4 new file mode 100644 index 000000000..7c7c92b53 --- /dev/null +++ b/src/c-ares/m4/cares-functions.m4 @@ -0,0 +1,3615 @@ +#*************************************************************************** +# +# Copyright (C) 2008 - 2012 by Daniel Stenberg et al +# +# Permission to use, copy, modify, and distribute this software and its +# documentation for any purpose and without fee is hereby granted, provided +# that the above copyright notice appear in all copies and that both that +# copyright notice and this permission notice appear in supporting +# documentation, and that the name of M.I.T. not be used in advertising or +# publicity pertaining to distribution of the software without specific, +# written prior permission. M.I.T. makes no representations about the +# suitability of this software for any purpose. It is provided "as is" +# without express or implied warranty. +# +#*************************************************************************** + +# File version for 'aclocal' use. Keep it a single number. +# serial 46 + + +dnl CARES_INCLUDES_ARPA_INET +dnl ------------------------------------------------- +dnl Set up variable with list of headers that must be +dnl included when arpa/inet.h is to be included. + +AC_DEFUN([CARES_INCLUDES_ARPA_INET], [ +cares_includes_arpa_inet="\ +/* includes start */ +#ifdef HAVE_SYS_TYPES_H +# include +#endif +#ifdef HAVE_SYS_SOCKET_H +# include +#endif +#ifdef HAVE_NETINET_IN_H +# include +#endif +#ifdef HAVE_ARPA_INET_H +# include +#endif +/* includes end */" + AC_CHECK_HEADERS( + sys/types.h sys/socket.h netinet/in.h arpa/inet.h, + [], [], [$cares_includes_arpa_inet]) +]) + + +dnl CARES_INCLUDES_FCNTL +dnl ------------------------------------------------- +dnl Set up variable with list of headers that must be +dnl included when fcntl.h is to be included. + +AC_DEFUN([CARES_INCLUDES_FCNTL], [ +cares_includes_fcntl="\ +/* includes start */ +#ifdef HAVE_SYS_TYPES_H +# include +#endif +#ifdef HAVE_UNISTD_H +# include +#endif +#ifdef HAVE_FCNTL_H +# include +#endif +/* includes end */" + AC_CHECK_HEADERS( + sys/types.h unistd.h fcntl.h, + [], [], [$cares_includes_fcntl]) +]) + + +dnl CARES_INCLUDES_NETDB +dnl ------------------------------------------------- +dnl Set up variable with list of headers that must be +dnl included when netdb.h is to be included. + +AC_DEFUN([CARES_INCLUDES_NETDB], [ +cares_includes_netdb="\ +/* includes start */ +#ifdef HAVE_SYS_TYPES_H +# include +#endif +#ifdef HAVE_NETDB_H +# include +#endif +/* includes end */" + AC_CHECK_HEADERS( + sys/types.h netdb.h, + [], [], [$cares_includes_netdb]) +]) + + +dnl CARES_INCLUDES_SOCKET +dnl ------------------------------------------------- +dnl Set up variable with list of headers that must be +dnl included when socket.h is to be included. + +AC_DEFUN([CARES_INCLUDES_SOCKET], [ +cares_includes_socket="\ +/* includes start */ +#ifdef HAVE_SYS_TYPES_H +# include +#endif +#ifdef HAVE_SOCKET_H +# include +#endif +/* includes end */" + AC_CHECK_HEADERS( + sys/types.h socket.h, + [], [], [$cares_includes_socket]) +]) + + +dnl CARES_INCLUDES_STDLIB +dnl ------------------------------------------------- +dnl Set up variable with list of headers that must be +dnl included when stdlib.h is to be included. + +AC_DEFUN([CARES_INCLUDES_STDLIB], [ +cares_includes_stdlib="\ +/* includes start */ +#ifdef HAVE_SYS_TYPES_H +# include +#endif +#ifdef HAVE_STDLIB_H +# include +#endif +/* includes end */" + AC_CHECK_HEADERS( + sys/types.h stdlib.h, + [], [], [$cares_includes_stdlib]) +]) + + +dnl CARES_INCLUDES_STRING +dnl ------------------------------------------------- +dnl Set up variable with list of headers that must be +dnl included when string(s).h is to be included. + +AC_DEFUN([CARES_INCLUDES_STRING], [ +cares_includes_string="\ +/* includes start */ +#ifdef HAVE_SYS_TYPES_H +# include +#endif +#ifdef HAVE_STRING_H +# include +#endif +#ifdef HAVE_STRINGS_H +# include +#endif +/* includes end */" + AC_CHECK_HEADERS( + sys/types.h string.h strings.h, + [], [], [$cares_includes_string]) +]) + + +dnl CARES_INCLUDES_STROPTS +dnl ------------------------------------------------- +dnl Set up variable with list of headers that must be +dnl included when stropts.h is to be included. + +AC_DEFUN([CARES_INCLUDES_STROPTS], [ +cares_includes_stropts="\ +/* includes start */ +#ifdef HAVE_SYS_TYPES_H +# include +#endif +#ifdef HAVE_UNISTD_H +# include +#endif +#ifdef HAVE_SYS_SOCKET_H +# include +#endif +#ifdef HAVE_SYS_IOCTL_H +# include +#endif +#ifdef HAVE_STROPTS_H +# include +#endif +/* includes end */" + AC_CHECK_HEADERS( + sys/types.h unistd.h sys/socket.h sys/ioctl.h stropts.h, + [], [], [$cares_includes_stropts]) +]) + + +dnl CARES_INCLUDES_SYS_SOCKET +dnl ------------------------------------------------- +dnl Set up variable with list of headers that must be +dnl included when sys/socket.h is to be included. + +AC_DEFUN([CARES_INCLUDES_SYS_SOCKET], [ +cares_includes_sys_socket="\ +/* includes start */ +#ifdef HAVE_SYS_TYPES_H +# include +#endif +#ifdef HAVE_SYS_SOCKET_H +# include +#endif +/* includes end */" + AC_CHECK_HEADERS( + sys/types.h sys/socket.h, + [], [], [$cares_includes_sys_socket]) +]) + + +dnl CARES_INCLUDES_SYS_TYPES +dnl ------------------------------------------------- +dnl Set up variable with list of headers that must be +dnl included when sys/types.h is to be included. + +AC_DEFUN([CARES_INCLUDES_SYS_TYPES], [ +cares_includes_sys_types="\ +/* includes start */ +#ifdef HAVE_SYS_TYPES_H +# include +#endif +/* includes end */" + AC_CHECK_HEADERS( + sys/types.h, + [], [], [$cares_includes_sys_types]) +]) + + +dnl CARES_INCLUDES_SYS_UIO +dnl ------------------------------------------------- +dnl Set up variable with list of headers that must be +dnl included when sys/uio.h is to be included. + +AC_DEFUN([CARES_INCLUDES_SYS_UIO], [ +cares_includes_sys_uio="\ +/* includes start */ +#ifdef HAVE_SYS_TYPES_H +# include +#endif +#ifdef HAVE_SYS_UIO_H +# include +#endif +/* includes end */" + AC_CHECK_HEADERS( + sys/types.h sys/uio.h, + [], [], [$cares_includes_sys_uio]) +]) + + +dnl CARES_INCLUDES_UNISTD +dnl ------------------------------------------------- +dnl Set up variable with list of headers that must be +dnl included when unistd.h is to be included. + +AC_DEFUN([CARES_INCLUDES_UNISTD], [ +cares_includes_unistd="\ +/* includes start */ +#ifdef HAVE_SYS_TYPES_H +# include +#endif +#ifdef HAVE_UNISTD_H +# include +#endif +/* includes end */" + AC_CHECK_HEADERS( + sys/types.h unistd.h, + [], [], [$cares_includes_unistd]) +]) + + +dnl CARES_INCLUDES_WINSOCK2 +dnl ------------------------------------------------- +dnl Set up variable with list of headers that must be +dnl included when winsock(2).h is to be included. + +AC_DEFUN([CARES_INCLUDES_WINSOCK2], [ +cares_includes_winsock2="\ +/* includes start */ +#ifdef HAVE_WINDOWS_H +# ifndef WIN32_LEAN_AND_MEAN +# define WIN32_LEAN_AND_MEAN +# endif +# include +# ifdef HAVE_WINSOCK2_H +# include +# else +# ifdef HAVE_WINSOCK_H +# include +# endif +# endif +#endif +/* includes end */" + CURL_CHECK_HEADER_WINDOWS + CURL_CHECK_HEADER_WINSOCK + CURL_CHECK_HEADER_WINSOCK2 +]) + + +dnl CARES_INCLUDES_WS2TCPIP +dnl ------------------------------------------------- +dnl Set up variable with list of headers that must be +dnl included when ws2tcpip.h is to be included. + +AC_DEFUN([CARES_INCLUDES_WS2TCPIP], [ +cares_includes_ws2tcpip="\ +/* includes start */ +#ifdef HAVE_WINDOWS_H +# ifndef WIN32_LEAN_AND_MEAN +# define WIN32_LEAN_AND_MEAN +# endif +# include +# ifdef HAVE_WINSOCK2_H +# include +# ifdef HAVE_WS2TCPIP_H +# include +# endif +# endif +#endif +/* includes end */" + CURL_CHECK_HEADER_WINDOWS + CURL_CHECK_HEADER_WINSOCK2 + CURL_CHECK_HEADER_WS2TCPIP +]) + + +dnl CARES_PREPROCESS_CALLCONV +dnl ------------------------------------------------- +dnl Set up variable with a preprocessor block which +dnl defines function calling convention. + +AC_DEFUN([CARES_PREPROCESS_CALLCONV], [ +cares_preprocess_callconv="\ +/* preprocess start */ +#ifdef HAVE_WINDOWS_H +# define FUNCALLCONV __stdcall +#else +# define FUNCALLCONV +#endif +/* preprocess end */" +]) + + +dnl CARES_CHECK_FUNC_CLOSESOCKET +dnl ------------------------------------------------- +dnl Verify if closesocket is available, prototyped, and +dnl can be compiled. If all of these are true, and +dnl usage has not been previously disallowed with +dnl shell variable cares_disallow_closesocket, then +dnl HAVE_CLOSESOCKET will be defined. + +AC_DEFUN([CARES_CHECK_FUNC_CLOSESOCKET], [ + AC_REQUIRE([CARES_INCLUDES_WINSOCK2])dnl + AC_REQUIRE([CARES_INCLUDES_SOCKET])dnl + # + tst_links_closesocket="unknown" + tst_proto_closesocket="unknown" + tst_compi_closesocket="unknown" + tst_allow_closesocket="unknown" + # + AC_MSG_CHECKING([if closesocket can be linked]) + AC_LINK_IFELSE([ + AC_LANG_PROGRAM([[ + $cares_includes_winsock2 + $cares_includes_socket + ]],[[ + if(0 != closesocket(0)) + return 1; + ]]) + ],[ + AC_MSG_RESULT([yes]) + tst_links_closesocket="yes" + ],[ + AC_MSG_RESULT([no]) + tst_links_closesocket="no" + ]) + # + if test "$tst_links_closesocket" = "yes"; then + AC_MSG_CHECKING([if closesocket is prototyped]) + AC_EGREP_CPP([closesocket],[ + $cares_includes_winsock2 + $cares_includes_socket + ],[ + AC_MSG_RESULT([yes]) + tst_proto_closesocket="yes" + ],[ + AC_MSG_RESULT([no]) + tst_proto_closesocket="no" + ]) + fi + # + if test "$tst_proto_closesocket" = "yes"; then + AC_MSG_CHECKING([if closesocket is compilable]) + AC_COMPILE_IFELSE([ + AC_LANG_PROGRAM([[ + $cares_includes_winsock2 + $cares_includes_socket + ]],[[ + if(0 != closesocket(0)) + return 1; + ]]) + ],[ + AC_MSG_RESULT([yes]) + tst_compi_closesocket="yes" + ],[ + AC_MSG_RESULT([no]) + tst_compi_closesocket="no" + ]) + fi + # + if test "$tst_compi_closesocket" = "yes"; then + AC_MSG_CHECKING([if closesocket usage allowed]) + if test "x$cares_disallow_closesocket" != "xyes"; then + AC_MSG_RESULT([yes]) + tst_allow_closesocket="yes" + else + AC_MSG_RESULT([no]) + tst_allow_closesocket="no" + fi + fi + # + AC_MSG_CHECKING([if closesocket might be used]) + if test "$tst_links_closesocket" = "yes" && + test "$tst_proto_closesocket" = "yes" && + test "$tst_compi_closesocket" = "yes" && + test "$tst_allow_closesocket" = "yes"; then + AC_MSG_RESULT([yes]) + AC_DEFINE_UNQUOTED(HAVE_CLOSESOCKET, 1, + [Define to 1 if you have the closesocket function.]) + ac_cv_func_closesocket="yes" + else + AC_MSG_RESULT([no]) + ac_cv_func_closesocket="no" + fi +]) + + +dnl CARES_CHECK_FUNC_CLOSESOCKET_CAMEL +dnl ------------------------------------------------- +dnl Verify if CloseSocket is available, prototyped, and +dnl can be compiled. If all of these are true, and +dnl usage has not been previously disallowed with +dnl shell variable cares_disallow_closesocket_camel, +dnl then HAVE_CLOSESOCKET_CAMEL will be defined. + +AC_DEFUN([CARES_CHECK_FUNC_CLOSESOCKET_CAMEL], [ + AC_REQUIRE([CARES_INCLUDES_SYS_SOCKET])dnl + # + tst_links_closesocket_camel="unknown" + tst_proto_closesocket_camel="unknown" + tst_compi_closesocket_camel="unknown" + tst_allow_closesocket_camel="unknown" + # + AC_MSG_CHECKING([if CloseSocket can be linked]) + AC_LINK_IFELSE([ + AC_LANG_PROGRAM([[ + $cares_includes_sys_socket + ]],[[ + if(0 != CloseSocket(0)) + return 1; + ]]) + ],[ + AC_MSG_RESULT([yes]) + tst_links_closesocket_camel="yes" + ],[ + AC_MSG_RESULT([no]) + tst_links_closesocket_camel="no" + ]) + # + if test "$tst_links_closesocket_camel" = "yes"; then + AC_MSG_CHECKING([if CloseSocket is prototyped]) + AC_EGREP_CPP([CloseSocket],[ + $cares_includes_sys_socket + ],[ + AC_MSG_RESULT([yes]) + tst_proto_closesocket_camel="yes" + ],[ + AC_MSG_RESULT([no]) + tst_proto_closesocket_camel="no" + ]) + fi + # + if test "$tst_proto_closesocket_camel" = "yes"; then + AC_MSG_CHECKING([if CloseSocket is compilable]) + AC_COMPILE_IFELSE([ + AC_LANG_PROGRAM([[ + $cares_includes_sys_socket + ]],[[ + if(0 != CloseSocket(0)) + return 1; + ]]) + ],[ + AC_MSG_RESULT([yes]) + tst_compi_closesocket_camel="yes" + ],[ + AC_MSG_RESULT([no]) + tst_compi_closesocket_camel="no" + ]) + fi + # + if test "$tst_compi_closesocket_camel" = "yes"; then + AC_MSG_CHECKING([if CloseSocket usage allowed]) + if test "x$cares_disallow_closesocket_camel" != "xyes"; then + AC_MSG_RESULT([yes]) + tst_allow_closesocket_camel="yes" + else + AC_MSG_RESULT([no]) + tst_allow_closesocket_camel="no" + fi + fi + # + AC_MSG_CHECKING([if CloseSocket might be used]) + if test "$tst_links_closesocket_camel" = "yes" && + test "$tst_proto_closesocket_camel" = "yes" && + test "$tst_compi_closesocket_camel" = "yes" && + test "$tst_allow_closesocket_camel" = "yes"; then + AC_MSG_RESULT([yes]) + AC_DEFINE_UNQUOTED(HAVE_CLOSESOCKET_CAMEL, 1, + [Define to 1 if you have the CloseSocket camel case function.]) + ac_cv_func_closesocket_camel="yes" + else + AC_MSG_RESULT([no]) + ac_cv_func_closesocket_camel="no" + fi +]) + + +dnl CARES_CHECK_FUNC_CONNECT +dnl ------------------------------------------------- +dnl Verify if connect is available, prototyped, and +dnl can be compiled. If all of these are true, and +dnl usage has not been previously disallowed with +dnl shell variable cares_disallow_connect, then +dnl HAVE_CONNECT will be defined. + +AC_DEFUN([CARES_CHECK_FUNC_CONNECT], [ + AC_REQUIRE([CARES_INCLUDES_WINSOCK2])dnl + AC_REQUIRE([CARES_INCLUDES_SYS_SOCKET])dnl + AC_REQUIRE([CARES_INCLUDES_SOCKET])dnl + # + tst_links_connect="unknown" + tst_proto_connect="unknown" + tst_compi_connect="unknown" + tst_allow_connect="unknown" + # + AC_MSG_CHECKING([if connect can be linked]) + AC_LINK_IFELSE([ + AC_LANG_PROGRAM([[ + $cares_includes_winsock2 + $cares_includes_sys_socket + $cares_includes_socket + ]],[[ + if(0 != connect(0, 0, 0)) + return 1; + ]]) + ],[ + AC_MSG_RESULT([yes]) + tst_links_connect="yes" + ],[ + AC_MSG_RESULT([no]) + tst_links_connect="no" + ]) + # + if test "$tst_links_connect" = "yes"; then + AC_MSG_CHECKING([if connect is prototyped]) + AC_EGREP_CPP([connect],[ + $cares_includes_winsock2 + $cares_includes_sys_socket + $cares_includes_socket + ],[ + AC_MSG_RESULT([yes]) + tst_proto_connect="yes" + ],[ + AC_MSG_RESULT([no]) + tst_proto_connect="no" + ]) + fi + # + if test "$tst_proto_connect" = "yes"; then + AC_MSG_CHECKING([if connect is compilable]) + AC_COMPILE_IFELSE([ + AC_LANG_PROGRAM([[ + $cares_includes_winsock2 + $cares_includes_sys_socket + $cares_includes_socket + ]],[[ + if(0 != connect(0, 0, 0)) + return 1; + ]]) + ],[ + AC_MSG_RESULT([yes]) + tst_compi_connect="yes" + ],[ + AC_MSG_RESULT([no]) + tst_compi_connect="no" + ]) + fi + # + if test "$tst_compi_connect" = "yes"; then + AC_MSG_CHECKING([if connect usage allowed]) + if test "x$cares_disallow_connect" != "xyes"; then + AC_MSG_RESULT([yes]) + tst_allow_connect="yes" + else + AC_MSG_RESULT([no]) + tst_allow_connect="no" + fi + fi + # + AC_MSG_CHECKING([if connect might be used]) + if test "$tst_links_connect" = "yes" && + test "$tst_proto_connect" = "yes" && + test "$tst_compi_connect" = "yes" && + test "$tst_allow_connect" = "yes"; then + AC_MSG_RESULT([yes]) + AC_DEFINE_UNQUOTED(HAVE_CONNECT, 1, + [Define to 1 if you have the connect function.]) + ac_cv_func_connect="yes" + else + AC_MSG_RESULT([no]) + ac_cv_func_connect="no" + fi +]) + + +dnl CARES_CHECK_FUNC_FCNTL +dnl ------------------------------------------------- +dnl Verify if fcntl is available, prototyped, and +dnl can be compiled. If all of these are true, and +dnl usage has not been previously disallowed with +dnl shell variable cares_disallow_fcntl, then +dnl HAVE_FCNTL will be defined. + +AC_DEFUN([CARES_CHECK_FUNC_FCNTL], [ + AC_REQUIRE([CARES_INCLUDES_FCNTL])dnl + # + tst_links_fcntl="unknown" + tst_proto_fcntl="unknown" + tst_compi_fcntl="unknown" + tst_allow_fcntl="unknown" + # + AC_MSG_CHECKING([if fcntl can be linked]) + AC_LINK_IFELSE([ + AC_LANG_FUNC_LINK_TRY([fcntl]) + ],[ + AC_MSG_RESULT([yes]) + tst_links_fcntl="yes" + ],[ + AC_MSG_RESULT([no]) + tst_links_fcntl="no" + ]) + # + if test "$tst_links_fcntl" = "yes"; then + AC_MSG_CHECKING([if fcntl is prototyped]) + AC_EGREP_CPP([fcntl],[ + $cares_includes_fcntl + ],[ + AC_MSG_RESULT([yes]) + tst_proto_fcntl="yes" + ],[ + AC_MSG_RESULT([no]) + tst_proto_fcntl="no" + ]) + fi + # + if test "$tst_proto_fcntl" = "yes"; then + AC_MSG_CHECKING([if fcntl is compilable]) + AC_COMPILE_IFELSE([ + AC_LANG_PROGRAM([[ + $cares_includes_fcntl + ]],[[ + if(0 != fcntl(0, 0, 0)) + return 1; + ]]) + ],[ + AC_MSG_RESULT([yes]) + tst_compi_fcntl="yes" + ],[ + AC_MSG_RESULT([no]) + tst_compi_fcntl="no" + ]) + fi + # + if test "$tst_compi_fcntl" = "yes"; then + AC_MSG_CHECKING([if fcntl usage allowed]) + if test "x$cares_disallow_fcntl" != "xyes"; then + AC_MSG_RESULT([yes]) + tst_allow_fcntl="yes" + else + AC_MSG_RESULT([no]) + tst_allow_fcntl="no" + fi + fi + # + AC_MSG_CHECKING([if fcntl might be used]) + if test "$tst_links_fcntl" = "yes" && + test "$tst_proto_fcntl" = "yes" && + test "$tst_compi_fcntl" = "yes" && + test "$tst_allow_fcntl" = "yes"; then + AC_MSG_RESULT([yes]) + AC_DEFINE_UNQUOTED(HAVE_FCNTL, 1, + [Define to 1 if you have the fcntl function.]) + ac_cv_func_fcntl="yes" + CARES_CHECK_FUNC_FCNTL_O_NONBLOCK + else + AC_MSG_RESULT([no]) + ac_cv_func_fcntl="no" + fi +]) + + +dnl CARES_CHECK_FUNC_FCNTL_O_NONBLOCK +dnl ------------------------------------------------- +dnl Verify if fcntl with status flag O_NONBLOCK is +dnl available, can be compiled, and seems to work. If +dnl all of these are true, then HAVE_FCNTL_O_NONBLOCK +dnl will be defined. + +AC_DEFUN([CARES_CHECK_FUNC_FCNTL_O_NONBLOCK], [ + # + tst_compi_fcntl_o_nonblock="unknown" + tst_allow_fcntl_o_nonblock="unknown" + # + case $host_os in + sunos4* | aix3* | beos*) + dnl O_NONBLOCK does not work on these platforms + cares_disallow_fcntl_o_nonblock="yes" + ;; + esac + # + if test "$ac_cv_func_fcntl" = "yes"; then + AC_MSG_CHECKING([if fcntl O_NONBLOCK is compilable]) + AC_COMPILE_IFELSE([ + AC_LANG_PROGRAM([[ + $cares_includes_fcntl + ]],[[ + int flags = 0; + if(0 != fcntl(0, F_SETFL, flags | O_NONBLOCK)) + return 1; + ]]) + ],[ + AC_MSG_RESULT([yes]) + tst_compi_fcntl_o_nonblock="yes" + ],[ + AC_MSG_RESULT([no]) + tst_compi_fcntl_o_nonblock="no" + ]) + fi + # + if test "$tst_compi_fcntl_o_nonblock" = "yes"; then + AC_MSG_CHECKING([if fcntl O_NONBLOCK usage allowed]) + if test "x$cares_disallow_fcntl_o_nonblock" != "xyes"; then + AC_MSG_RESULT([yes]) + tst_allow_fcntl_o_nonblock="yes" + else + AC_MSG_RESULT([no]) + tst_allow_fcntl_o_nonblock="no" + fi + fi + # + AC_MSG_CHECKING([if fcntl O_NONBLOCK might be used]) + if test "$tst_compi_fcntl_o_nonblock" = "yes" && + test "$tst_allow_fcntl_o_nonblock" = "yes"; then + AC_MSG_RESULT([yes]) + AC_DEFINE_UNQUOTED(HAVE_FCNTL_O_NONBLOCK, 1, + [Define to 1 if you have a working fcntl O_NONBLOCK function.]) + ac_cv_func_fcntl_o_nonblock="yes" + else + AC_MSG_RESULT([no]) + ac_cv_func_fcntl_o_nonblock="no" + fi +]) + + +dnl CARES_CHECK_FUNC_FREEADDRINFO +dnl ------------------------------------------------- +dnl Verify if freeaddrinfo is available, prototyped, +dnl and can be compiled. If all of these are true, +dnl and usage has not been previously disallowed with +dnl shell variable cares_disallow_freeaddrinfo, then +dnl HAVE_FREEADDRINFO will be defined. + +AC_DEFUN([CARES_CHECK_FUNC_FREEADDRINFO], [ + AC_REQUIRE([CARES_INCLUDES_WS2TCPIP])dnl + AC_REQUIRE([CARES_INCLUDES_SYS_SOCKET])dnl + AC_REQUIRE([CARES_INCLUDES_NETDB])dnl + # + tst_links_freeaddrinfo="unknown" + tst_proto_freeaddrinfo="unknown" + tst_compi_freeaddrinfo="unknown" + tst_allow_freeaddrinfo="unknown" + # + AC_MSG_CHECKING([if freeaddrinfo can be linked]) + AC_LINK_IFELSE([ + AC_LANG_PROGRAM([[ + $cares_includes_ws2tcpip + $cares_includes_sys_socket + $cares_includes_netdb + ]],[[ + freeaddrinfo(0); + ]]) + ],[ + AC_MSG_RESULT([yes]) + tst_links_freeaddrinfo="yes" + ],[ + AC_MSG_RESULT([no]) + tst_links_freeaddrinfo="no" + ]) + # + if test "$tst_links_freeaddrinfo" = "yes"; then + AC_MSG_CHECKING([if freeaddrinfo is prototyped]) + AC_EGREP_CPP([freeaddrinfo],[ + $cares_includes_ws2tcpip + $cares_includes_sys_socket + $cares_includes_netdb + ],[ + AC_MSG_RESULT([yes]) + tst_proto_freeaddrinfo="yes" + ],[ + AC_MSG_RESULT([no]) + tst_proto_freeaddrinfo="no" + ]) + fi + # + if test "$tst_proto_freeaddrinfo" = "yes"; then + AC_MSG_CHECKING([if freeaddrinfo is compilable]) + AC_COMPILE_IFELSE([ + AC_LANG_PROGRAM([[ + $cares_includes_ws2tcpip + $cares_includes_sys_socket + $cares_includes_netdb + ]],[[ + freeaddrinfo(0); + ]]) + ],[ + AC_MSG_RESULT([yes]) + tst_compi_freeaddrinfo="yes" + ],[ + AC_MSG_RESULT([no]) + tst_compi_freeaddrinfo="no" + ]) + fi + # + if test "$tst_compi_freeaddrinfo" = "yes"; then + AC_MSG_CHECKING([if freeaddrinfo usage allowed]) + if test "x$cares_disallow_freeaddrinfo" != "xyes"; then + AC_MSG_RESULT([yes]) + tst_allow_freeaddrinfo="yes" + else + AC_MSG_RESULT([no]) + tst_allow_freeaddrinfo="no" + fi + fi + # + AC_MSG_CHECKING([if freeaddrinfo might be used]) + if test "$tst_links_freeaddrinfo" = "yes" && + test "$tst_proto_freeaddrinfo" = "yes" && + test "$tst_compi_freeaddrinfo" = "yes" && + test "$tst_allow_freeaddrinfo" = "yes"; then + AC_MSG_RESULT([yes]) + AC_DEFINE_UNQUOTED(HAVE_FREEADDRINFO, 1, + [Define to 1 if you have the freeaddrinfo function.]) + ac_cv_func_freeaddrinfo="yes" + else + AC_MSG_RESULT([no]) + ac_cv_func_freeaddrinfo="no" + fi +]) + + +dnl CARES_CHECK_FUNC_GETADDRINFO +dnl ------------------------------------------------- +dnl Verify if getaddrinfo is available, prototyped, can +dnl be compiled and seems to work. If all of these are +dnl true, and usage has not been previously disallowed +dnl with shell variable cares_disallow_getaddrinfo, then +dnl HAVE_GETADDRINFO will be defined. Additionally when +dnl HAVE_GETADDRINFO gets defined this will also attempt +dnl to find out if getaddrinfo happens to be threadsafe, +dnl defining HAVE_GETADDRINFO_THREADSAFE when true. + +AC_DEFUN([CARES_CHECK_FUNC_GETADDRINFO], [ + AC_REQUIRE([CARES_INCLUDES_WS2TCPIP])dnl + AC_REQUIRE([CARES_INCLUDES_STDLIB])dnl + AC_REQUIRE([CARES_INCLUDES_STRING])dnl + AC_REQUIRE([CARES_INCLUDES_SYS_SOCKET])dnl + AC_REQUIRE([CARES_INCLUDES_NETDB])dnl + AC_REQUIRE([CURL_CHECK_NATIVE_WINDOWS])dnl + # + tst_links_getaddrinfo="unknown" + tst_proto_getaddrinfo="unknown" + tst_compi_getaddrinfo="unknown" + tst_works_getaddrinfo="unknown" + tst_allow_getaddrinfo="unknown" + tst_tsafe_getaddrinfo="unknown" + # + AC_MSG_CHECKING([if getaddrinfo can be linked]) + AC_LINK_IFELSE([ + AC_LANG_PROGRAM([[ + $cares_includes_ws2tcpip + $cares_includes_sys_socket + $cares_includes_netdb + ]],[[ + if(0 != getaddrinfo(0, 0, 0, 0)) + return 1; + ]]) + ],[ + AC_MSG_RESULT([yes]) + tst_links_getaddrinfo="yes" + ],[ + AC_MSG_RESULT([no]) + tst_links_getaddrinfo="no" + ]) + # + if test "$tst_links_getaddrinfo" = "yes"; then + AC_MSG_CHECKING([if getaddrinfo is prototyped]) + AC_EGREP_CPP([getaddrinfo],[ + $cares_includes_ws2tcpip + $cares_includes_sys_socket + $cares_includes_netdb + ],[ + AC_MSG_RESULT([yes]) + tst_proto_getaddrinfo="yes" + ],[ + AC_MSG_RESULT([no]) + tst_proto_getaddrinfo="no" + ]) + fi + # + if test "$tst_proto_getaddrinfo" = "yes"; then + AC_MSG_CHECKING([if getaddrinfo is compilable]) + AC_COMPILE_IFELSE([ + AC_LANG_PROGRAM([[ + $cares_includes_ws2tcpip + $cares_includes_sys_socket + $cares_includes_netdb + ]],[[ + if(0 != getaddrinfo(0, 0, 0, 0)) + return 1; + ]]) + ],[ + AC_MSG_RESULT([yes]) + tst_compi_getaddrinfo="yes" + ],[ + AC_MSG_RESULT([no]) + tst_compi_getaddrinfo="no" + ]) + fi + # + dnl only do runtime verification when not cross-compiling + if test "x$cross_compiling" != "xyes" && + test "$tst_compi_getaddrinfo" = "yes"; then + AC_MSG_CHECKING([if getaddrinfo seems to work]) + AC_RUN_IFELSE([ + AC_LANG_PROGRAM([[ + $cares_includes_ws2tcpip + $cares_includes_stdlib + $cares_includes_string + $cares_includes_sys_socket + $cares_includes_netdb + ]],[[ + struct addrinfo hints; + struct addrinfo *ai = 0; + int error; + + memset(&hints, 0, sizeof(hints)); + hints.ai_flags = AI_NUMERICHOST; + hints.ai_family = AF_UNSPEC; + hints.ai_socktype = SOCK_STREAM; + error = getaddrinfo("127.0.0.1", 0, &hints, &ai); + if(error || !ai) + exit(1); /* fail */ + else + exit(0); + ]]) + ],[ + AC_MSG_RESULT([yes]) + tst_works_getaddrinfo="yes" + ],[ + AC_MSG_RESULT([no]) + tst_works_getaddrinfo="no" + ]) + fi + # + if test "$tst_compi_getaddrinfo" = "yes" && + test "$tst_works_getaddrinfo" != "no"; then + AC_MSG_CHECKING([if getaddrinfo usage allowed]) + if test "x$cares_disallow_getaddrinfo" != "xyes"; then + AC_MSG_RESULT([yes]) + tst_allow_getaddrinfo="yes" + else + AC_MSG_RESULT([no]) + tst_allow_getaddrinfo="no" + fi + fi + # + AC_MSG_CHECKING([if getaddrinfo might be used]) + if test "$tst_links_getaddrinfo" = "yes" && + test "$tst_proto_getaddrinfo" = "yes" && + test "$tst_compi_getaddrinfo" = "yes" && + test "$tst_allow_getaddrinfo" = "yes" && + test "$tst_works_getaddrinfo" != "no"; then + AC_MSG_RESULT([yes]) + AC_DEFINE_UNQUOTED(HAVE_GETADDRINFO, 1, + [Define to 1 if you have a working getaddrinfo function.]) + ac_cv_func_getaddrinfo="yes" + else + AC_MSG_RESULT([no]) + ac_cv_func_getaddrinfo="no" + ac_cv_func_getaddrinfo_threadsafe="no" + fi + # + if test "$ac_cv_func_getaddrinfo" = "yes"; then + AC_MSG_CHECKING([if getaddrinfo is threadsafe]) + case $host_os in + aix[[1234]].* | aix5.[[01]].*) + dnl aix 5.1 and older + tst_tsafe_getaddrinfo="no" + ;; + aix*) + dnl aix 5.2 and newer + tst_tsafe_getaddrinfo="yes" + ;; + darwin[[12345]].*) + dnl darwin 5.0 and mac os x 10.1.X and older + tst_tsafe_getaddrinfo="no" + ;; + darwin*) + dnl darwin 6.0 and mac os x 10.2.X and newer + tst_tsafe_getaddrinfo="yes" + ;; + freebsd[[1234]].* | freebsd5.[[1234]]*) + dnl freebsd 5.4 and older + tst_tsafe_getaddrinfo="no" + ;; + freebsd*) + dnl freebsd 5.5 and newer + tst_tsafe_getaddrinfo="yes" + ;; + hpux[[123456789]].* | hpux10.* | hpux11.0* | hpux11.10*) + dnl hpux 11.10 and older + tst_tsafe_getaddrinfo="no" + ;; + hpux*) + dnl hpux 11.11 and newer + tst_tsafe_getaddrinfo="yes" + ;; + netbsd[[123]].*) + dnl netbsd 3.X and older + tst_tsafe_getaddrinfo="no" + ;; + netbsd*) + dnl netbsd 4.X and newer + tst_tsafe_getaddrinfo="yes" + ;; + *bsd*) + dnl All other bsd's + tst_tsafe_getaddrinfo="no" + ;; + solaris2*) + dnl solaris which have it + tst_tsafe_getaddrinfo="yes" + ;; + esac + if test "$tst_tsafe_getaddrinfo" = "unknown" && + test "$ac_cv_native_windows" = "yes"; then + tst_tsafe_getaddrinfo="yes" + fi + if test "$tst_tsafe_getaddrinfo" = "unknown"; then + CURL_CHECK_DEF_CC([h_errno], [ + $cares_includes_sys_socket + $cares_includes_netdb + ], [silent]) + if test "$curl_cv_have_def_h_errno" = "yes"; then + tst_h_errno_macro="yes" + else + tst_h_errno_macro="no" + fi + AC_COMPILE_IFELSE([ + AC_LANG_PROGRAM([[ + $cares_includes_sys_socket + $cares_includes_netdb + ]],[[ + h_errno = 2; + if(0 != h_errno) + return 1; + ]]) + ],[ + tst_h_errno_modifiable_lvalue="yes" + ],[ + tst_h_errno_modifiable_lvalue="no" + ]) + AC_COMPILE_IFELSE([ + AC_LANG_PROGRAM([[ + ]],[[ +#if defined(_POSIX_C_SOURCE) && (_POSIX_C_SOURCE >= 200809L) + return 0; +#elif defined(_XOPEN_SOURCE) && (_XOPEN_SOURCE >= 700) + return 0; +#else + force compilation error +#endif + ]]) + ],[ + tst_h_errno_sbs_issue_7="yes" + ],[ + tst_h_errno_sbs_issue_7="no" + ]) + if test "$tst_h_errno_macro" = "no" && + test "$tst_h_errno_modifiable_lvalue" = "no" && + test "$tst_h_errno_sbs_issue_7" = "no"; then + tst_tsafe_getaddrinfo="no" + else + tst_tsafe_getaddrinfo="yes" + fi + fi + AC_MSG_RESULT([$tst_tsafe_getaddrinfo]) + if test "$tst_tsafe_getaddrinfo" = "yes"; then + AC_DEFINE_UNQUOTED(HAVE_GETADDRINFO_THREADSAFE, 1, + [Define to 1 if the getaddrinfo function is threadsafe.]) + ac_cv_func_getaddrinfo_threadsafe="yes" + else + ac_cv_func_getaddrinfo_threadsafe="no" + fi + fi +]) + + +dnl CARES_CHECK_FUNC_GETENV +dnl ------------------------------------------------- +dnl Verify if getenv is available, prototyped, and +dnl can be compiled. If all of these are true, and +dnl usage has not been previously disallowed with +dnl shell variable cares_disallow_getenv, then +dnl HAVE_GETENV will be defined. + +AC_DEFUN([CARES_CHECK_FUNC_GETENV], [ + AC_REQUIRE([CARES_INCLUDES_STDLIB])dnl + # + tst_links_getenv="unknown" + tst_proto_getenv="unknown" + tst_compi_getenv="unknown" + tst_allow_getenv="unknown" + # + AC_MSG_CHECKING([if getenv can be linked]) + AC_LINK_IFELSE([ + AC_LANG_FUNC_LINK_TRY([getenv]) + ],[ + AC_MSG_RESULT([yes]) + tst_links_getenv="yes" + ],[ + AC_MSG_RESULT([no]) + tst_links_getenv="no" + ]) + # + if test "$tst_links_getenv" = "yes"; then + AC_MSG_CHECKING([if getenv is prototyped]) + AC_EGREP_CPP([getenv],[ + $cares_includes_stdlib + ],[ + AC_MSG_RESULT([yes]) + tst_proto_getenv="yes" + ],[ + AC_MSG_RESULT([no]) + tst_proto_getenv="no" + ]) + fi + # + if test "$tst_proto_getenv" = "yes"; then + AC_MSG_CHECKING([if getenv is compilable]) + AC_COMPILE_IFELSE([ + AC_LANG_PROGRAM([[ + $cares_includes_stdlib + ]],[[ + if(0 != getenv(0)) + return 1; + ]]) + ],[ + AC_MSG_RESULT([yes]) + tst_compi_getenv="yes" + ],[ + AC_MSG_RESULT([no]) + tst_compi_getenv="no" + ]) + fi + # + if test "$tst_compi_getenv" = "yes"; then + AC_MSG_CHECKING([if getenv usage allowed]) + if test "x$cares_disallow_getenv" != "xyes"; then + AC_MSG_RESULT([yes]) + tst_allow_getenv="yes" + else + AC_MSG_RESULT([no]) + tst_allow_getenv="no" + fi + fi + # + AC_MSG_CHECKING([if getenv might be used]) + if test "$tst_links_getenv" = "yes" && + test "$tst_proto_getenv" = "yes" && + test "$tst_compi_getenv" = "yes" && + test "$tst_allow_getenv" = "yes"; then + AC_MSG_RESULT([yes]) + AC_DEFINE_UNQUOTED(HAVE_GETENV, 1, + [Define to 1 if you have the getenv function.]) + ac_cv_func_getenv="yes" + else + AC_MSG_RESULT([no]) + ac_cv_func_getenv="no" + fi +]) + + +dnl CARES_CHECK_FUNC_GETHOSTBYADDR +dnl ------------------------------------------------- +dnl Verify if gethostbyaddr is available, prototyped, +dnl and can be compiled. If all of these are true, +dnl and usage has not been previously disallowed with +dnl shell variable cares_disallow_gethostbyaddr, then +dnl HAVE_GETHOSTBYADDR will be defined. + +AC_DEFUN([CARES_CHECK_FUNC_GETHOSTBYADDR], [ + AC_REQUIRE([CARES_INCLUDES_WINSOCK2])dnl + AC_REQUIRE([CARES_INCLUDES_NETDB])dnl + # + tst_links_gethostbyaddr="unknown" + tst_proto_gethostbyaddr="unknown" + tst_compi_gethostbyaddr="unknown" + tst_allow_gethostbyaddr="unknown" + # + AC_MSG_CHECKING([if gethostbyaddr can be linked]) + AC_LINK_IFELSE([ + AC_LANG_PROGRAM([[ + $cares_includes_winsock2 + $cares_includes_netdb + ]],[[ + if(0 != gethostbyaddr(0, 0, 0)) + return 1; + ]]) + ],[ + AC_MSG_RESULT([yes]) + tst_links_gethostbyaddr="yes" + ],[ + AC_MSG_RESULT([no]) + tst_links_gethostbyaddr="no" + ]) + # + if test "$tst_links_gethostbyaddr" = "yes"; then + AC_MSG_CHECKING([if gethostbyaddr is prototyped]) + AC_EGREP_CPP([gethostbyaddr],[ + $cares_includes_winsock2 + $cares_includes_netdb + ],[ + AC_MSG_RESULT([yes]) + tst_proto_gethostbyaddr="yes" + ],[ + AC_MSG_RESULT([no]) + tst_proto_gethostbyaddr="no" + ]) + fi + # + if test "$tst_proto_gethostbyaddr" = "yes"; then + AC_MSG_CHECKING([if gethostbyaddr is compilable]) + AC_COMPILE_IFELSE([ + AC_LANG_PROGRAM([[ + $cares_includes_winsock2 + $cares_includes_netdb + ]],[[ + if(0 != gethostbyaddr(0, 0, 0)) + return 1; + ]]) + ],[ + AC_MSG_RESULT([yes]) + tst_compi_gethostbyaddr="yes" + ],[ + AC_MSG_RESULT([no]) + tst_compi_gethostbyaddr="no" + ]) + fi + # + if test "$tst_compi_gethostbyaddr" = "yes"; then + AC_MSG_CHECKING([if gethostbyaddr usage allowed]) + if test "x$cares_disallow_gethostbyaddr" != "xyes"; then + AC_MSG_RESULT([yes]) + tst_allow_gethostbyaddr="yes" + else + AC_MSG_RESULT([no]) + tst_allow_gethostbyaddr="no" + fi + fi + # + AC_MSG_CHECKING([if gethostbyaddr might be used]) + if test "$tst_links_gethostbyaddr" = "yes" && + test "$tst_proto_gethostbyaddr" = "yes" && + test "$tst_compi_gethostbyaddr" = "yes" && + test "$tst_allow_gethostbyaddr" = "yes"; then + AC_MSG_RESULT([yes]) + AC_DEFINE_UNQUOTED(HAVE_GETHOSTBYADDR, 1, + [Define to 1 if you have the gethostbyaddr function.]) + ac_cv_func_gethostbyaddr="yes" + else + AC_MSG_RESULT([no]) + ac_cv_func_gethostbyaddr="no" + fi +]) + + +dnl CARES_CHECK_FUNC_GETHOSTBYNAME +dnl ------------------------------------------------- +dnl Verify if gethostbyname is available, prototyped, +dnl and can be compiled. If all of these are true, +dnl and usage has not been previously disallowed with +dnl shell variable cares_disallow_gethostbyname, then +dnl HAVE_GETHOSTBYNAME will be defined. + +AC_DEFUN([CARES_CHECK_FUNC_GETHOSTBYNAME], [ + AC_REQUIRE([CARES_INCLUDES_WINSOCK2])dnl + AC_REQUIRE([CARES_INCLUDES_NETDB])dnl + # + tst_links_gethostbyname="unknown" + tst_proto_gethostbyname="unknown" + tst_compi_gethostbyname="unknown" + tst_allow_gethostbyname="unknown" + # + AC_MSG_CHECKING([if gethostbyname can be linked]) + AC_LINK_IFELSE([ + AC_LANG_PROGRAM([[ + $cares_includes_winsock2 + $cares_includes_netdb + ]],[[ + if(0 != gethostbyname(0)) + return 1; + ]]) + ],[ + AC_MSG_RESULT([yes]) + tst_links_gethostbyname="yes" + ],[ + AC_MSG_RESULT([no]) + tst_links_gethostbyname="no" + ]) + # + if test "$tst_links_gethostbyname" = "yes"; then + AC_MSG_CHECKING([if gethostbyname is prototyped]) + AC_EGREP_CPP([gethostbyname],[ + $cares_includes_winsock2 + $cares_includes_netdb + ],[ + AC_MSG_RESULT([yes]) + tst_proto_gethostbyname="yes" + ],[ + AC_MSG_RESULT([no]) + tst_proto_gethostbyname="no" + ]) + fi + # + if test "$tst_proto_gethostbyname" = "yes"; then + AC_MSG_CHECKING([if gethostbyname is compilable]) + AC_COMPILE_IFELSE([ + AC_LANG_PROGRAM([[ + $cares_includes_winsock2 + $cares_includes_netdb + ]],[[ + if(0 != gethostbyname(0)) + return 1; + ]]) + ],[ + AC_MSG_RESULT([yes]) + tst_compi_gethostbyname="yes" + ],[ + AC_MSG_RESULT([no]) + tst_compi_gethostbyname="no" + ]) + fi + # + if test "$tst_compi_gethostbyname" = "yes"; then + AC_MSG_CHECKING([if gethostbyname usage allowed]) + if test "x$cares_disallow_gethostbyname" != "xyes"; then + AC_MSG_RESULT([yes]) + tst_allow_gethostbyname="yes" + else + AC_MSG_RESULT([no]) + tst_allow_gethostbyname="no" + fi + fi + # + AC_MSG_CHECKING([if gethostbyname might be used]) + if test "$tst_links_gethostbyname" = "yes" && + test "$tst_proto_gethostbyname" = "yes" && + test "$tst_compi_gethostbyname" = "yes" && + test "$tst_allow_gethostbyname" = "yes"; then + AC_MSG_RESULT([yes]) + AC_DEFINE_UNQUOTED(HAVE_GETHOSTBYNAME, 1, + [Define to 1 if you have the gethostbyname function.]) + ac_cv_func_gethostbyname="yes" + else + AC_MSG_RESULT([no]) + ac_cv_func_gethostbyname="no" + fi +]) + + +dnl CARES_CHECK_FUNC_GETHOSTNAME +dnl ------------------------------------------------- +dnl Verify if gethostname is available, prototyped, and +dnl can be compiled. If all of these are true, and +dnl usage has not been previously disallowed with +dnl shell variable cares_disallow_gethostname, then +dnl HAVE_GETHOSTNAME will be defined. + +AC_DEFUN([CARES_CHECK_FUNC_GETHOSTNAME], [ + AC_REQUIRE([CARES_INCLUDES_WINSOCK2])dnl + AC_REQUIRE([CARES_INCLUDES_UNISTD])dnl + AC_REQUIRE([CARES_PREPROCESS_CALLCONV])dnl + # + tst_links_gethostname="unknown" + tst_proto_gethostname="unknown" + tst_compi_gethostname="unknown" + tst_allow_gethostname="unknown" + # + AC_MSG_CHECKING([if gethostname can be linked]) + AC_LINK_IFELSE([ + AC_LANG_PROGRAM([[ + $cares_includes_winsock2 + $cares_includes_unistd + ]],[[ + if(0 != gethostname(0, 0)) + return 1; + ]]) + ],[ + AC_MSG_RESULT([yes]) + tst_links_gethostname="yes" + ],[ + AC_MSG_RESULT([no]) + tst_links_gethostname="no" + ]) + # + if test "$tst_links_gethostname" = "yes"; then + AC_MSG_CHECKING([if gethostname is prototyped]) + AC_EGREP_CPP([gethostname],[ + $cares_includes_winsock2 + $cares_includes_unistd + ],[ + AC_MSG_RESULT([yes]) + tst_proto_gethostname="yes" + ],[ + AC_MSG_RESULT([no]) + tst_proto_gethostname="no" + ]) + fi + # + if test "$tst_proto_gethostname" = "yes"; then + AC_MSG_CHECKING([if gethostname is compilable]) + AC_COMPILE_IFELSE([ + AC_LANG_PROGRAM([[ + $cares_includes_winsock2 + $cares_includes_unistd + ]],[[ + if(0 != gethostname(0, 0)) + return 1; + ]]) + ],[ + AC_MSG_RESULT([yes]) + tst_compi_gethostname="yes" + ],[ + AC_MSG_RESULT([no]) + tst_compi_gethostname="no" + ]) + fi + # + if test "$tst_compi_gethostname" = "yes"; then + AC_MSG_CHECKING([for gethostname arg 2 data type]) + tst_gethostname_type_arg2="unknown" + for tst_arg1 in 'char *' 'unsigned char *' 'void *'; do + for tst_arg2 in 'int' 'unsigned int' 'size_t'; do + if test "$tst_gethostname_type_arg2" = "unknown"; then + AC_COMPILE_IFELSE([ + AC_LANG_PROGRAM([[ + $cares_includes_winsock2 + $cares_includes_unistd + $cares_preprocess_callconv + extern int FUNCALLCONV gethostname($tst_arg1, $tst_arg2); + ]],[[ + if(0 != gethostname(0, 0)) + return 1; + ]]) + ],[ + tst_gethostname_type_arg2="$tst_arg2" + ]) + fi + done + done + AC_MSG_RESULT([$tst_gethostname_type_arg2]) + if test "$tst_gethostname_type_arg2" != "unknown"; then + AC_DEFINE_UNQUOTED(GETHOSTNAME_TYPE_ARG2, $tst_gethostname_type_arg2, + [Define to the type of arg 2 for gethostname.]) + fi + fi + # + if test "$tst_compi_gethostname" = "yes"; then + AC_MSG_CHECKING([if gethostname usage allowed]) + if test "x$cares_disallow_gethostname" != "xyes"; then + AC_MSG_RESULT([yes]) + tst_allow_gethostname="yes" + else + AC_MSG_RESULT([no]) + tst_allow_gethostname="no" + fi + fi + # + AC_MSG_CHECKING([if gethostname might be used]) + if test "$tst_links_gethostname" = "yes" && + test "$tst_proto_gethostname" = "yes" && + test "$tst_compi_gethostname" = "yes" && + test "$tst_allow_gethostname" = "yes"; then + AC_MSG_RESULT([yes]) + AC_DEFINE_UNQUOTED(HAVE_GETHOSTNAME, 1, + [Define to 1 if you have the gethostname function.]) + ac_cv_func_gethostname="yes" + else + AC_MSG_RESULT([no]) + ac_cv_func_gethostname="no" + fi +]) + + +dnl CARES_CHECK_FUNC_GETSERVBYPORT_R +dnl ------------------------------------------------- +dnl Verify if getservbyport_r is available, prototyped, +dnl and can be compiled. If all of these are true, and +dnl usage has not been previously disallowed with +dnl shell variable cares_disallow_getservbyport_r, then +dnl HAVE_GETSERVBYPORT_R will be defined. + +AC_DEFUN([CARES_CHECK_FUNC_GETSERVBYPORT_R], [ + AC_REQUIRE([CARES_INCLUDES_NETDB])dnl + # + tst_links_getservbyport_r="unknown" + tst_proto_getservbyport_r="unknown" + tst_compi_getservbyport_r="unknown" + tst_allow_getservbyport_r="unknown" + tst_nargs_getservbyport_r="unknown" + # + AC_MSG_CHECKING([if getservbyport_r can be linked]) + AC_LINK_IFELSE([ + AC_LANG_FUNC_LINK_TRY([getservbyport_r]) + ],[ + AC_MSG_RESULT([yes]) + tst_links_getservbyport_r="yes" + ],[ + AC_MSG_RESULT([no]) + tst_links_getservbyport_r="no" + ]) + # + if test "$tst_links_getservbyport_r" = "yes"; then + AC_MSG_CHECKING([if getservbyport_r is prototyped]) + AC_EGREP_CPP([getservbyport_r],[ + $cares_includes_netdb + ],[ + AC_MSG_RESULT([yes]) + tst_proto_getservbyport_r="yes" + ],[ + AC_MSG_RESULT([no]) + tst_proto_getservbyport_r="no" + ]) + fi + # + if test "$tst_proto_getservbyport_r" = "yes"; then + if test "$tst_nargs_getservbyport_r" = "unknown"; then + AC_MSG_CHECKING([if getservbyport_r takes 4 args.]) + AC_COMPILE_IFELSE([ + AC_LANG_PROGRAM([[ + $cares_includes_netdb + ]],[[ + if(0 != getservbyport_r(0, 0, 0, 0)) + return 1; + ]]) + ],[ + AC_MSG_RESULT([yes]) + tst_compi_getservbyport_r="yes" + tst_nargs_getservbyport_r="4" + ],[ + AC_MSG_RESULT([no]) + tst_compi_getservbyport_r="no" + ]) + fi + if test "$tst_nargs_getservbyport_r" = "unknown"; then + AC_MSG_CHECKING([if getservbyport_r takes 5 args.]) + AC_COMPILE_IFELSE([ + AC_LANG_PROGRAM([[ + $cares_includes_netdb + ]],[[ + if(0 != getservbyport_r(0, 0, 0, 0, 0)) + return 1; + ]]) + ],[ + AC_MSG_RESULT([yes]) + tst_compi_getservbyport_r="yes" + tst_nargs_getservbyport_r="5" + ],[ + AC_MSG_RESULT([no]) + tst_compi_getservbyport_r="no" + ]) + fi + if test "$tst_nargs_getservbyport_r" = "unknown"; then + AC_MSG_CHECKING([if getservbyport_r takes 6 args.]) + AC_COMPILE_IFELSE([ + AC_LANG_PROGRAM([[ + $cares_includes_netdb + ]],[[ + if(0 != getservbyport_r(0, 0, 0, 0, 0, 0)) + return 1; + ]]) + ],[ + AC_MSG_RESULT([yes]) + tst_compi_getservbyport_r="yes" + tst_nargs_getservbyport_r="6" + ],[ + AC_MSG_RESULT([no]) + tst_compi_getservbyport_r="no" + ]) + fi + AC_MSG_CHECKING([if getservbyport_r is compilable]) + if test "$tst_compi_getservbyport_r" = "yes"; then + AC_MSG_RESULT([yes]) + else + AC_MSG_RESULT([no]) + fi + fi + # + if test "$tst_compi_getservbyport_r" = "yes"; then + AC_MSG_CHECKING([if getservbyport_r usage allowed]) + if test "x$cares_disallow_getservbyport_r" != "xyes"; then + AC_MSG_RESULT([yes]) + tst_allow_getservbyport_r="yes" + else + AC_MSG_RESULT([no]) + tst_allow_getservbyport_r="no" + fi + fi + # + AC_MSG_CHECKING([if getservbyport_r might be used]) + if test "$tst_links_getservbyport_r" = "yes" && + test "$tst_proto_getservbyport_r" = "yes" && + test "$tst_compi_getservbyport_r" = "yes" && + test "$tst_allow_getservbyport_r" = "yes"; then + AC_MSG_RESULT([yes]) + AC_DEFINE_UNQUOTED(HAVE_GETSERVBYPORT_R, 1, + [Define to 1 if you have the getservbyport_r function.]) + AC_DEFINE_UNQUOTED(GETSERVBYPORT_R_ARGS, $tst_nargs_getservbyport_r, + [Specifies the number of arguments to getservbyport_r]) + if test "$tst_nargs_getservbyport_r" -eq "4"; then + AC_DEFINE(GETSERVBYPORT_R_BUFSIZE, sizeof(struct servent_data), + [Specifies the size of the buffer to pass to getservbyport_r]) + else + AC_DEFINE(GETSERVBYPORT_R_BUFSIZE, 4096, + [Specifies the size of the buffer to pass to getservbyport_r]) + fi + ac_cv_func_getservbyport_r="yes" + else + AC_MSG_RESULT([no]) + ac_cv_func_getservbyport_r="no" + fi +]) + + +dnl CARES_CHECK_FUNC_INET_NET_PTON +dnl ------------------------------------------------- +dnl Verify if inet_net_pton is available, prototyped, can +dnl be compiled and seems to work. If all of these are +dnl true, and usage has not been previously disallowed +dnl with shell variable cares_disallow_inet_net_pton, then +dnl HAVE_INET_NET_PTON will be defined. + +AC_DEFUN([CARES_CHECK_FUNC_INET_NET_PTON], [ + AC_REQUIRE([CARES_INCLUDES_STDLIB])dnl + AC_REQUIRE([CARES_INCLUDES_ARPA_INET])dnl + AC_REQUIRE([CARES_INCLUDES_STRING])dnl + # + tst_links_inet_net_pton="unknown" + tst_proto_inet_net_pton="unknown" + tst_compi_inet_net_pton="unknown" + tst_works_inet_net_pton="unknown" + tst_allow_inet_net_pton="unknown" + # + AC_MSG_CHECKING([if inet_net_pton can be linked]) + AC_LINK_IFELSE([ + AC_LANG_FUNC_LINK_TRY([inet_net_pton]) + ],[ + AC_MSG_RESULT([yes]) + tst_links_inet_net_pton="yes" + ],[ + AC_MSG_RESULT([no]) + tst_links_inet_net_pton="no" + ]) + # + if test "$tst_links_inet_net_pton" = "yes"; then + AC_MSG_CHECKING([if inet_net_pton is prototyped]) + AC_EGREP_CPP([inet_net_pton],[ + $cares_includes_arpa_inet + ],[ + AC_MSG_RESULT([yes]) + tst_proto_inet_net_pton="yes" + ],[ + AC_MSG_RESULT([no]) + tst_proto_inet_net_pton="no" + ]) + fi + # + if test "$tst_proto_inet_net_pton" = "yes"; then + AC_MSG_CHECKING([if inet_net_pton is compilable]) + AC_COMPILE_IFELSE([ + AC_LANG_PROGRAM([[ + $cares_includes_arpa_inet + ]],[[ + if(0 != inet_net_pton(0, 0, 0, 0)) + return 1; + ]]) + ],[ + AC_MSG_RESULT([yes]) + tst_compi_inet_net_pton="yes" + ],[ + AC_MSG_RESULT([no]) + tst_compi_inet_net_pton="no" + ]) + fi + # + dnl only do runtime verification when not cross-compiling + if test "x$cross_compiling" != "xyes" && + test "$tst_compi_inet_net_pton" = "yes"; then + AC_MSG_CHECKING([if inet_net_pton seems to work]) + AC_RUN_IFELSE([ + AC_LANG_PROGRAM([[ + $cares_includes_stdlib + $cares_includes_arpa_inet + $cares_includes_string + ]],[[ + unsigned char ipv6a[16+1]; + unsigned char ipv4a[4+1]; + const char *ipv6net1 = "fe80::214:4fff:fe0b:76c8"; + const char *ipv6net2 = "::fffe:7f00:1"; + const char *ipv6net3 = "7f20:1::/64"; + const char *ipv6net4 = "7f20:1::/2147483649"; + const char *ipv4net1 = "192.168.100.1"; + const char *ipv4net2 = "192.168.100/32"; + const char *ipv4net3 = "192.168.100.1/2147483649"; + /* - */ + memset(ipv4a, 1, sizeof(ipv4a)); + if(32 != inet_net_pton(AF_INET, ipv4net1, ipv4a, 4)) + exit(1); /* fail */ + /* - */ + if( (ipv4a[0x00] != 0xc0) || + (ipv4a[0x01] != 0xa8) || + (ipv4a[0x02] != 0x64) || + (ipv4a[0x03] != 0x01) || + (ipv4a[0x04] != 0x01) ) + exit(1); /* fail */ + /* - */ + memset(ipv4a, 1, sizeof(ipv4a)); + if(32 != inet_net_pton(AF_INET, ipv4net2, ipv4a, 4)) + exit(1); /* fail */ + /* - */ + if( (ipv4a[0x00] != 0xc0) || + (ipv4a[0x01] != 0xa8) || + (ipv4a[0x02] != 0x64) || + (ipv4a[0x03] != 0x00) || + (ipv4a[0x04] != 0x01) ) + exit(1); /* fail */ + /* - */ + memset(ipv4a, 1, sizeof(ipv4a)); + if(-1 != inet_net_pton(AF_INET, ipv4net3, ipv4a, 4)) + exit(1); /* fail */ + /* - */ + memset(ipv6a, 1, sizeof(ipv6a)); + if(128 != inet_net_pton(AF_INET6, ipv6net1, ipv6a, 16)) + exit(1); /* fail */ + /* - */ + if( (ipv6a[0x00] != 0xfe) || + (ipv6a[0x01] != 0x80) || + (ipv6a[0x08] != 0x02) || + (ipv6a[0x09] != 0x14) || + (ipv6a[0x0a] != 0x4f) || + (ipv6a[0x0b] != 0xff) || + (ipv6a[0x0c] != 0xfe) || + (ipv6a[0x0d] != 0x0b) || + (ipv6a[0x0e] != 0x76) || + (ipv6a[0x0f] != 0xc8) || + (ipv6a[0x10] != 0x01) ) + exit(1); /* fail */ + /* - */ + if( (ipv6a[0x02] != 0x0) || + (ipv6a[0x03] != 0x0) || + (ipv6a[0x04] != 0x0) || + (ipv6a[0x05] != 0x0) || + (ipv6a[0x06] != 0x0) || + (ipv6a[0x07] != 0x0) ) + exit(1); /* fail */ + /* - */ + memset(ipv6a, 0, sizeof(ipv6a)); + ipv6a[0x10] = 0x01; + if(128 != inet_net_pton(AF_INET6, ipv6net2, ipv6a, 16)) + exit(1); /* fail */ + /* - */ + if( (ipv6a[0x0a] != 0xff) || + (ipv6a[0x0b] != 0xfe) || + (ipv6a[0x0c] != 0x7f) || + (ipv6a[0x0f] != 0x01) || + (ipv6a[0x10] != 0x01) ) + exit(1); /* fail */ + /* - */ + if( (ipv6a[0x00] != 0x0) || + (ipv6a[0x01] != 0x0) || + (ipv6a[0x02] != 0x0) || + (ipv6a[0x03] != 0x0) || + (ipv6a[0x04] != 0x0) || + (ipv6a[0x05] != 0x0) || + (ipv6a[0x06] != 0x0) || + (ipv6a[0x07] != 0x0) || + (ipv6a[0x08] != 0x0) || + (ipv6a[0x09] != 0x0) || + (ipv6a[0x0d] != 0x0) || + (ipv6a[0x0e] != 0x0) ) + exit(1); /* fail */ + /* - */ + memset(ipv6a, 1, sizeof(ipv6a)); + if(64 != inet_net_pton(AF_INET6, ipv6net3, ipv6a, 16)) + exit(1); /* fail */ + if( (ipv6a[0x00] != 0x7f) || + (ipv6a[0x01] != 0x20) || + (ipv6a[0x03] != 0x01) || + (ipv6a[0x08] != 0x01) || + (ipv6a[0x09] != 0x01) || + (ipv6a[0x0a] != 0x01) || + (ipv6a[0x0b] != 0x01) || + (ipv6a[0x0c] != 0x01) || + (ipv6a[0x0d] != 0x01) || + (ipv6a[0x0e] != 0x01) || + (ipv6a[0x0f] != 0x01) || + (ipv6a[0x10] != 0x01) ) + exit(1); /* fail */ + if( (ipv6a[0x02] != 0x0) || + (ipv6a[0x04] != 0x0) || + (ipv6a[0x05] != 0x0) || + (ipv6a[0x06] != 0x0) || + (ipv6a[0x07] != 0x0) || + (ipv6a[0x07] != 0x0) ) + exit(1); /* fail */ + /* - */ + memset(ipv6a, 1, sizeof(ipv6a)); + if(-1 != inet_net_pton(AF_INET6, ipv6net4, ipv6a, 16)) + exit(1); /* fail */ + /* - */ + exit(0); + ]]) + ],[ + AC_MSG_RESULT([yes]) + tst_works_inet_net_pton="yes" + ],[ + AC_MSG_RESULT([no]) + tst_works_inet_net_pton="no" + ]) + fi + # + if test "$tst_compi_inet_net_pton" = "yes" && + test "$tst_works_inet_net_pton" != "no"; then + AC_MSG_CHECKING([if inet_net_pton usage allowed]) + if test "x$cares_disallow_inet_net_pton" != "xyes"; then + AC_MSG_RESULT([yes]) + tst_allow_inet_net_pton="yes" + else + AC_MSG_RESULT([no]) + tst_allow_inet_net_pton="no" + fi + fi + # + AC_MSG_CHECKING([if inet_net_pton might be used]) + if test "$tst_links_inet_net_pton" = "yes" && + test "$tst_proto_inet_net_pton" = "yes" && + test "$tst_compi_inet_net_pton" = "yes" && + test "$tst_allow_inet_net_pton" = "yes" && + test "$tst_works_inet_net_pton" != "no"; then + AC_MSG_RESULT([yes]) + AC_DEFINE_UNQUOTED(HAVE_INET_NET_PTON, 1, + [Define to 1 if you have a IPv6 capable working inet_net_pton function.]) + ac_cv_func_inet_net_pton="yes" + else + AC_MSG_RESULT([no]) + ac_cv_func_inet_net_pton="no" + fi +]) + + +dnl CARES_CHECK_FUNC_INET_NTOP +dnl ------------------------------------------------- +dnl Verify if inet_ntop is available, prototyped, can +dnl be compiled and seems to work. If all of these are +dnl true, and usage has not been previously disallowed +dnl with shell variable cares_disallow_inet_ntop, then +dnl HAVE_INET_NTOP will be defined. + +AC_DEFUN([CARES_CHECK_FUNC_INET_NTOP], [ + AC_REQUIRE([CARES_INCLUDES_STDLIB])dnl + AC_REQUIRE([CARES_INCLUDES_ARPA_INET])dnl + AC_REQUIRE([CARES_INCLUDES_STRING])dnl + # + tst_links_inet_ntop="unknown" + tst_proto_inet_ntop="unknown" + tst_compi_inet_ntop="unknown" + tst_works_inet_ntop="unknown" + tst_allow_inet_ntop="unknown" + # + AC_MSG_CHECKING([if inet_ntop can be linked]) + AC_LINK_IFELSE([ + AC_LANG_FUNC_LINK_TRY([inet_ntop]) + ],[ + AC_MSG_RESULT([yes]) + tst_links_inet_ntop="yes" + ],[ + AC_MSG_RESULT([no]) + tst_links_inet_ntop="no" + ]) + # + if test "$tst_links_inet_ntop" = "yes"; then + AC_MSG_CHECKING([if inet_ntop is prototyped]) + AC_EGREP_CPP([inet_ntop],[ + $cares_includes_arpa_inet + ],[ + AC_MSG_RESULT([yes]) + tst_proto_inet_ntop="yes" + ],[ + AC_MSG_RESULT([no]) + tst_proto_inet_ntop="no" + ]) + fi + # + if test "$tst_proto_inet_ntop" = "yes"; then + AC_MSG_CHECKING([if inet_ntop is compilable]) + AC_COMPILE_IFELSE([ + AC_LANG_PROGRAM([[ + $cares_includes_arpa_inet + ]],[[ + if(0 != inet_ntop(0, 0, 0, 0)) + return 1; + ]]) + ],[ + AC_MSG_RESULT([yes]) + tst_compi_inet_ntop="yes" + ],[ + AC_MSG_RESULT([no]) + tst_compi_inet_ntop="no" + ]) + fi + # + dnl only do runtime verification when not cross-compiling + if test "x$cross_compiling" != "xyes" && + test "$tst_compi_inet_ntop" = "yes"; then + AC_MSG_CHECKING([if inet_ntop seems to work]) + AC_RUN_IFELSE([ + AC_LANG_PROGRAM([[ + $cares_includes_stdlib + $cares_includes_arpa_inet + $cares_includes_string + ]],[[ + char ipv6res[sizeof("ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255")]; + char ipv4res[sizeof "255.255.255.255"]; + unsigned char ipv6a[26]; + unsigned char ipv4a[5]; + char *ipv6ptr = 0; + char *ipv4ptr = 0; + /* - */ + ipv4res[0] = '\0'; + ipv4a[0] = 0xc0; + ipv4a[1] = 0xa8; + ipv4a[2] = 0x64; + ipv4a[3] = 0x01; + ipv4a[4] = 0x01; + /* - */ + ipv4ptr = inet_ntop(AF_INET, ipv4a, ipv4res, sizeof(ipv4res)); + if(!ipv4ptr) + exit(1); /* fail */ + if(ipv4ptr != ipv4res) + exit(1); /* fail */ + if(!ipv4ptr[0]) + exit(1); /* fail */ + if(memcmp(ipv4res, "192.168.100.1", 13) != 0) + exit(1); /* fail */ + /* - */ + ipv6res[0] = '\0'; + memset(ipv6a, 0, sizeof(ipv6a)); + ipv6a[0] = 0xfe; + ipv6a[1] = 0x80; + ipv6a[8] = 0x02; + ipv6a[9] = 0x14; + ipv6a[10] = 0x4f; + ipv6a[11] = 0xff; + ipv6a[12] = 0xfe; + ipv6a[13] = 0x0b; + ipv6a[14] = 0x76; + ipv6a[15] = 0xc8; + ipv6a[25] = 0x01; + /* - */ + ipv6ptr = inet_ntop(AF_INET6, ipv6a, ipv6res, sizeof(ipv6res)); + if(!ipv6ptr) + exit(1); /* fail */ + if(ipv6ptr != ipv6res) + exit(1); /* fail */ + if(!ipv6ptr[0]) + exit(1); /* fail */ + if(memcmp(ipv6res, "fe80::214:4fff:fe0b:76c8", 24) != 0) + exit(1); /* fail */ + /* - */ + exit(0); + ]]) + ],[ + AC_MSG_RESULT([yes]) + tst_works_inet_ntop="yes" + ],[ + AC_MSG_RESULT([no]) + tst_works_inet_ntop="no" + ]) + fi + # + if test "$tst_compi_inet_ntop" = "yes" && + test "$tst_works_inet_ntop" != "no"; then + AC_MSG_CHECKING([if inet_ntop usage allowed]) + if test "x$cares_disallow_inet_ntop" != "xyes"; then + AC_MSG_RESULT([yes]) + tst_allow_inet_ntop="yes" + else + AC_MSG_RESULT([no]) + tst_allow_inet_ntop="no" + fi + fi + # + AC_MSG_CHECKING([if inet_ntop might be used]) + if test "$tst_links_inet_ntop" = "yes" && + test "$tst_proto_inet_ntop" = "yes" && + test "$tst_compi_inet_ntop" = "yes" && + test "$tst_allow_inet_ntop" = "yes" && + test "$tst_works_inet_ntop" != "no"; then + AC_MSG_RESULT([yes]) + AC_DEFINE_UNQUOTED(HAVE_INET_NTOP, 1, + [Define to 1 if you have a IPv6 capable working inet_ntop function.]) + ac_cv_func_inet_ntop="yes" + else + AC_MSG_RESULT([no]) + ac_cv_func_inet_ntop="no" + fi +]) + + +dnl CARES_CHECK_FUNC_INET_PTON +dnl ------------------------------------------------- +dnl Verify if inet_pton is available, prototyped, can +dnl be compiled and seems to work. If all of these are +dnl true, and usage has not been previously disallowed +dnl with shell variable cares_disallow_inet_pton, then +dnl HAVE_INET_PTON will be defined. + +AC_DEFUN([CARES_CHECK_FUNC_INET_PTON], [ + AC_REQUIRE([CARES_INCLUDES_STDLIB])dnl + AC_REQUIRE([CARES_INCLUDES_ARPA_INET])dnl + AC_REQUIRE([CARES_INCLUDES_STRING])dnl + # + tst_links_inet_pton="unknown" + tst_proto_inet_pton="unknown" + tst_compi_inet_pton="unknown" + tst_works_inet_pton="unknown" + tst_allow_inet_pton="unknown" + # + AC_MSG_CHECKING([if inet_pton can be linked]) + AC_LINK_IFELSE([ + AC_LANG_FUNC_LINK_TRY([inet_pton]) + ],[ + AC_MSG_RESULT([yes]) + tst_links_inet_pton="yes" + ],[ + AC_MSG_RESULT([no]) + tst_links_inet_pton="no" + ]) + # + if test "$tst_links_inet_pton" = "yes"; then + AC_MSG_CHECKING([if inet_pton is prototyped]) + AC_EGREP_CPP([inet_pton],[ + $cares_includes_arpa_inet + ],[ + AC_MSG_RESULT([yes]) + tst_proto_inet_pton="yes" + ],[ + AC_MSG_RESULT([no]) + tst_proto_inet_pton="no" + ]) + fi + # + if test "$tst_proto_inet_pton" = "yes"; then + AC_MSG_CHECKING([if inet_pton is compilable]) + AC_COMPILE_IFELSE([ + AC_LANG_PROGRAM([[ + $cares_includes_arpa_inet + ]],[[ + if(0 != inet_pton(0, 0, 0)) + return 1; + ]]) + ],[ + AC_MSG_RESULT([yes]) + tst_compi_inet_pton="yes" + ],[ + AC_MSG_RESULT([no]) + tst_compi_inet_pton="no" + ]) + fi + # + dnl only do runtime verification when not cross-compiling + if test "x$cross_compiling" != "xyes" && + test "$tst_compi_inet_pton" = "yes"; then + AC_MSG_CHECKING([if inet_pton seems to work]) + AC_RUN_IFELSE([ + AC_LANG_PROGRAM([[ + $cares_includes_stdlib + $cares_includes_arpa_inet + $cares_includes_string + ]],[[ + unsigned char ipv6a[16+1]; + unsigned char ipv4a[4+1]; + const char *ipv6src = "fe80::214:4fff:fe0b:76c8"; + const char *ipv4src = "192.168.100.1"; + /* - */ + memset(ipv4a, 1, sizeof(ipv4a)); + if(1 != inet_pton(AF_INET, ipv4src, ipv4a)) + exit(1); /* fail */ + /* - */ + if( (ipv4a[0] != 0xc0) || + (ipv4a[1] != 0xa8) || + (ipv4a[2] != 0x64) || + (ipv4a[3] != 0x01) || + (ipv4a[4] != 0x01) ) + exit(1); /* fail */ + /* - */ + memset(ipv6a, 1, sizeof(ipv6a)); + if(1 != inet_pton(AF_INET6, ipv6src, ipv6a)) + exit(1); /* fail */ + /* - */ + if( (ipv6a[0] != 0xfe) || + (ipv6a[1] != 0x80) || + (ipv6a[8] != 0x02) || + (ipv6a[9] != 0x14) || + (ipv6a[10] != 0x4f) || + (ipv6a[11] != 0xff) || + (ipv6a[12] != 0xfe) || + (ipv6a[13] != 0x0b) || + (ipv6a[14] != 0x76) || + (ipv6a[15] != 0xc8) || + (ipv6a[16] != 0x01) ) + exit(1); /* fail */ + /* - */ + if( (ipv6a[2] != 0x0) || + (ipv6a[3] != 0x0) || + (ipv6a[4] != 0x0) || + (ipv6a[5] != 0x0) || + (ipv6a[6] != 0x0) || + (ipv6a[7] != 0x0) ) + exit(1); /* fail */ + /* - */ + exit(0); + ]]) + ],[ + AC_MSG_RESULT([yes]) + tst_works_inet_pton="yes" + ],[ + AC_MSG_RESULT([no]) + tst_works_inet_pton="no" + ]) + fi + # + if test "$tst_compi_inet_pton" = "yes" && + test "$tst_works_inet_pton" != "no"; then + AC_MSG_CHECKING([if inet_pton usage allowed]) + if test "x$cares_disallow_inet_pton" != "xyes"; then + AC_MSG_RESULT([yes]) + tst_allow_inet_pton="yes" + else + AC_MSG_RESULT([no]) + tst_allow_inet_pton="no" + fi + fi + # + AC_MSG_CHECKING([if inet_pton might be used]) + if test "$tst_links_inet_pton" = "yes" && + test "$tst_proto_inet_pton" = "yes" && + test "$tst_compi_inet_pton" = "yes" && + test "$tst_allow_inet_pton" = "yes" && + test "$tst_works_inet_pton" != "no"; then + AC_MSG_RESULT([yes]) + AC_DEFINE_UNQUOTED(HAVE_INET_PTON, 1, + [Define to 1 if you have a IPv6 capable working inet_pton function.]) + ac_cv_func_inet_pton="yes" + else + AC_MSG_RESULT([no]) + ac_cv_func_inet_pton="no" + fi +]) + + +dnl CARES_CHECK_FUNC_IOCTL +dnl ------------------------------------------------- +dnl Verify if ioctl is available, prototyped, and +dnl can be compiled. If all of these are true, and +dnl usage has not been previously disallowed with +dnl shell variable cares_disallow_ioctl, then +dnl HAVE_IOCTL will be defined. + +AC_DEFUN([CARES_CHECK_FUNC_IOCTL], [ + AC_REQUIRE([CARES_INCLUDES_STROPTS])dnl + # + tst_links_ioctl="unknown" + tst_proto_ioctl="unknown" + tst_compi_ioctl="unknown" + tst_allow_ioctl="unknown" + # + AC_MSG_CHECKING([if ioctl can be linked]) + AC_LINK_IFELSE([ + AC_LANG_FUNC_LINK_TRY([ioctl]) + ],[ + AC_MSG_RESULT([yes]) + tst_links_ioctl="yes" + ],[ + AC_MSG_RESULT([no]) + tst_links_ioctl="no" + ]) + # + if test "$tst_links_ioctl" = "yes"; then + AC_MSG_CHECKING([if ioctl is prototyped]) + AC_EGREP_CPP([ioctl],[ + $cares_includes_stropts + ],[ + AC_MSG_RESULT([yes]) + tst_proto_ioctl="yes" + ],[ + AC_MSG_RESULT([no]) + tst_proto_ioctl="no" + ]) + fi + # + if test "$tst_proto_ioctl" = "yes"; then + AC_MSG_CHECKING([if ioctl is compilable]) + AC_COMPILE_IFELSE([ + AC_LANG_PROGRAM([[ + $cares_includes_stropts + ]],[[ + if(0 != ioctl(0, 0, 0)) + return 1; + ]]) + ],[ + AC_MSG_RESULT([yes]) + tst_compi_ioctl="yes" + ],[ + AC_MSG_RESULT([no]) + tst_compi_ioctl="no" + ]) + fi + # + if test "$tst_compi_ioctl" = "yes"; then + AC_MSG_CHECKING([if ioctl usage allowed]) + if test "x$cares_disallow_ioctl" != "xyes"; then + AC_MSG_RESULT([yes]) + tst_allow_ioctl="yes" + else + AC_MSG_RESULT([no]) + tst_allow_ioctl="no" + fi + fi + # + AC_MSG_CHECKING([if ioctl might be used]) + if test "$tst_links_ioctl" = "yes" && + test "$tst_proto_ioctl" = "yes" && + test "$tst_compi_ioctl" = "yes" && + test "$tst_allow_ioctl" = "yes"; then + AC_MSG_RESULT([yes]) + AC_DEFINE_UNQUOTED(HAVE_IOCTL, 1, + [Define to 1 if you have the ioctl function.]) + ac_cv_func_ioctl="yes" + CARES_CHECK_FUNC_IOCTL_FIONBIO + CARES_CHECK_FUNC_IOCTL_SIOCGIFADDR + else + AC_MSG_RESULT([no]) + ac_cv_func_ioctl="no" + fi +]) + + +dnl CARES_CHECK_FUNC_IOCTL_FIONBIO +dnl ------------------------------------------------- +dnl Verify if ioctl with the FIONBIO command is +dnl available, can be compiled, and seems to work. If +dnl all of these are true, then HAVE_IOCTL_FIONBIO +dnl will be defined. + +AC_DEFUN([CARES_CHECK_FUNC_IOCTL_FIONBIO], [ + # + tst_compi_ioctl_fionbio="unknown" + tst_allow_ioctl_fionbio="unknown" + # + if test "$ac_cv_func_ioctl" = "yes"; then + AC_MSG_CHECKING([if ioctl FIONBIO is compilable]) + AC_COMPILE_IFELSE([ + AC_LANG_PROGRAM([[ + $cares_includes_stropts + ]],[[ + int flags = 0; + if(0 != ioctl(0, FIONBIO, &flags)) + return 1; + ]]) + ],[ + AC_MSG_RESULT([yes]) + tst_compi_ioctl_fionbio="yes" + ],[ + AC_MSG_RESULT([no]) + tst_compi_ioctl_fionbio="no" + ]) + fi + # + if test "$tst_compi_ioctl_fionbio" = "yes"; then + AC_MSG_CHECKING([if ioctl FIONBIO usage allowed]) + if test "x$cares_disallow_ioctl_fionbio" != "xyes"; then + AC_MSG_RESULT([yes]) + tst_allow_ioctl_fionbio="yes" + else + AC_MSG_RESULT([no]) + tst_allow_ioctl_fionbio="no" + fi + fi + # + AC_MSG_CHECKING([if ioctl FIONBIO might be used]) + if test "$tst_compi_ioctl_fionbio" = "yes" && + test "$tst_allow_ioctl_fionbio" = "yes"; then + AC_MSG_RESULT([yes]) + AC_DEFINE_UNQUOTED(HAVE_IOCTL_FIONBIO, 1, + [Define to 1 if you have a working ioctl FIONBIO function.]) + ac_cv_func_ioctl_fionbio="yes" + else + AC_MSG_RESULT([no]) + ac_cv_func_ioctl_fionbio="no" + fi +]) + + +dnl CARES_CHECK_FUNC_IOCTL_SIOCGIFADDR +dnl ------------------------------------------------- +dnl Verify if ioctl with the SIOCGIFADDR command is available, +dnl struct ifreq is defined, they can be compiled, and seem to +dnl work. If all of these are true, then HAVE_IOCTL_SIOCGIFADDR +dnl will be defined. + +AC_DEFUN([CARES_CHECK_FUNC_IOCTL_SIOCGIFADDR], [ + # + tst_compi_ioctl_siocgifaddr="unknown" + tst_allow_ioctl_siocgifaddr="unknown" + # + if test "$ac_cv_func_ioctl" = "yes"; then + AC_MSG_CHECKING([if ioctl SIOCGIFADDR is compilable]) + AC_COMPILE_IFELSE([ + AC_LANG_PROGRAM([[ + $cares_includes_stropts + #include + ]],[[ + struct ifreq ifr; + if(0 != ioctl(0, SIOCGIFADDR, &ifr)) + return 1; + ]]) + ],[ + AC_MSG_RESULT([yes]) + tst_compi_ioctl_siocgifaddr="yes" + ],[ + AC_MSG_RESULT([no]) + tst_compi_ioctl_siocgifaddr="no" + ]) + fi + # + if test "$tst_compi_ioctl_siocgifaddr" = "yes"; then + AC_MSG_CHECKING([if ioctl SIOCGIFADDR usage allowed]) + if test "x$cares_disallow_ioctl_siocgifaddr" != "xyes"; then + AC_MSG_RESULT([yes]) + tst_allow_ioctl_siocgifaddr="yes" + else + AC_MSG_RESULT([no]) + tst_allow_ioctl_siocgifaddr="no" + fi + fi + # + AC_MSG_CHECKING([if ioctl SIOCGIFADDR might be used]) + if test "$tst_compi_ioctl_siocgifaddr" = "yes" && + test "$tst_allow_ioctl_siocgifaddr" = "yes"; then + AC_MSG_RESULT([yes]) + AC_DEFINE_UNQUOTED(HAVE_IOCTL_SIOCGIFADDR, 1, + [Define to 1 if you have a working ioctl SIOCGIFADDR function.]) + ac_cv_func_ioctl_siocgifaddr="yes" + else + AC_MSG_RESULT([no]) + ac_cv_func_ioctl_siocgifaddr="no" + fi +]) + + +dnl CARES_CHECK_FUNC_IOCTLSOCKET +dnl ------------------------------------------------- +dnl Verify if ioctlsocket is available, prototyped, and +dnl can be compiled. If all of these are true, and +dnl usage has not been previously disallowed with +dnl shell variable cares_disallow_ioctlsocket, then +dnl HAVE_IOCTLSOCKET will be defined. + +AC_DEFUN([CARES_CHECK_FUNC_IOCTLSOCKET], [ + AC_REQUIRE([CARES_INCLUDES_WINSOCK2])dnl + # + tst_links_ioctlsocket="unknown" + tst_proto_ioctlsocket="unknown" + tst_compi_ioctlsocket="unknown" + tst_allow_ioctlsocket="unknown" + # + AC_MSG_CHECKING([if ioctlsocket can be linked]) + AC_LINK_IFELSE([ + AC_LANG_PROGRAM([[ + $cares_includes_winsock2 + ]],[[ + if(0 != ioctlsocket(0, 0, 0)) + return 1; + ]]) + ],[ + AC_MSG_RESULT([yes]) + tst_links_ioctlsocket="yes" + ],[ + AC_MSG_RESULT([no]) + tst_links_ioctlsocket="no" + ]) + # + if test "$tst_links_ioctlsocket" = "yes"; then + AC_MSG_CHECKING([if ioctlsocket is prototyped]) + AC_EGREP_CPP([ioctlsocket],[ + $cares_includes_winsock2 + ],[ + AC_MSG_RESULT([yes]) + tst_proto_ioctlsocket="yes" + ],[ + AC_MSG_RESULT([no]) + tst_proto_ioctlsocket="no" + ]) + fi + # + if test "$tst_proto_ioctlsocket" = "yes"; then + AC_MSG_CHECKING([if ioctlsocket is compilable]) + AC_COMPILE_IFELSE([ + AC_LANG_PROGRAM([[ + $cares_includes_winsock2 + ]],[[ + if(0 != ioctlsocket(0, 0, 0)) + return 1; + ]]) + ],[ + AC_MSG_RESULT([yes]) + tst_compi_ioctlsocket="yes" + ],[ + AC_MSG_RESULT([no]) + tst_compi_ioctlsocket="no" + ]) + fi + # + if test "$tst_compi_ioctlsocket" = "yes"; then + AC_MSG_CHECKING([if ioctlsocket usage allowed]) + if test "x$cares_disallow_ioctlsocket" != "xyes"; then + AC_MSG_RESULT([yes]) + tst_allow_ioctlsocket="yes" + else + AC_MSG_RESULT([no]) + tst_allow_ioctlsocket="no" + fi + fi + # + AC_MSG_CHECKING([if ioctlsocket might be used]) + if test "$tst_links_ioctlsocket" = "yes" && + test "$tst_proto_ioctlsocket" = "yes" && + test "$tst_compi_ioctlsocket" = "yes" && + test "$tst_allow_ioctlsocket" = "yes"; then + AC_MSG_RESULT([yes]) + AC_DEFINE_UNQUOTED(HAVE_IOCTLSOCKET, 1, + [Define to 1 if you have the ioctlsocket function.]) + ac_cv_func_ioctlsocket="yes" + CARES_CHECK_FUNC_IOCTLSOCKET_FIONBIO + else + AC_MSG_RESULT([no]) + ac_cv_func_ioctlsocket="no" + fi +]) + + +dnl CARES_CHECK_FUNC_IOCTLSOCKET_FIONBIO +dnl ------------------------------------------------- +dnl Verify if ioctlsocket with the FIONBIO command is +dnl available, can be compiled, and seems to work. If +dnl all of these are true, then HAVE_IOCTLSOCKET_FIONBIO +dnl will be defined. + +AC_DEFUN([CARES_CHECK_FUNC_IOCTLSOCKET_FIONBIO], [ + # + tst_compi_ioctlsocket_fionbio="unknown" + tst_allow_ioctlsocket_fionbio="unknown" + # + if test "$ac_cv_func_ioctlsocket" = "yes"; then + AC_MSG_CHECKING([if ioctlsocket FIONBIO is compilable]) + AC_COMPILE_IFELSE([ + AC_LANG_PROGRAM([[ + $cares_includes_winsock2 + ]],[[ + int flags = 0; + if(0 != ioctlsocket(0, FIONBIO, &flags)) + return 1; + ]]) + ],[ + AC_MSG_RESULT([yes]) + tst_compi_ioctlsocket_fionbio="yes" + ],[ + AC_MSG_RESULT([no]) + tst_compi_ioctlsocket_fionbio="no" + ]) + fi + # + if test "$tst_compi_ioctlsocket_fionbio" = "yes"; then + AC_MSG_CHECKING([if ioctlsocket FIONBIO usage allowed]) + if test "x$cares_disallow_ioctlsocket_fionbio" != "xyes"; then + AC_MSG_RESULT([yes]) + tst_allow_ioctlsocket_fionbio="yes" + else + AC_MSG_RESULT([no]) + tst_allow_ioctlsocket_fionbio="no" + fi + fi + # + AC_MSG_CHECKING([if ioctlsocket FIONBIO might be used]) + if test "$tst_compi_ioctlsocket_fionbio" = "yes" && + test "$tst_allow_ioctlsocket_fionbio" = "yes"; then + AC_MSG_RESULT([yes]) + AC_DEFINE_UNQUOTED(HAVE_IOCTLSOCKET_FIONBIO, 1, + [Define to 1 if you have a working ioctlsocket FIONBIO function.]) + ac_cv_func_ioctlsocket_fionbio="yes" + else + AC_MSG_RESULT([no]) + ac_cv_func_ioctlsocket_fionbio="no" + fi +]) + + +dnl CARES_CHECK_FUNC_IOCTLSOCKET_CAMEL +dnl ------------------------------------------------- +dnl Verify if IoctlSocket is available, prototyped, and +dnl can be compiled. If all of these are true, and +dnl usage has not been previously disallowed with +dnl shell variable cares_disallow_ioctlsocket_camel, +dnl then HAVE_IOCTLSOCKET_CAMEL will be defined. + +AC_DEFUN([CARES_CHECK_FUNC_IOCTLSOCKET_CAMEL], [ + AC_REQUIRE([CARES_INCLUDES_STROPTS])dnl + # + tst_links_ioctlsocket_camel="unknown" + tst_proto_ioctlsocket_camel="unknown" + tst_compi_ioctlsocket_camel="unknown" + tst_allow_ioctlsocket_camel="unknown" + # + AC_MSG_CHECKING([if IoctlSocket can be linked]) + AC_LINK_IFELSE([ + AC_LANG_FUNC_LINK_TRY([IoctlSocket]) + ],[ + AC_MSG_RESULT([yes]) + tst_links_ioctlsocket_camel="yes" + ],[ + AC_MSG_RESULT([no]) + tst_links_ioctlsocket_camel="no" + ]) + # + if test "$tst_links_ioctlsocket_camel" = "yes"; then + AC_MSG_CHECKING([if IoctlSocket is prototyped]) + AC_EGREP_CPP([IoctlSocket],[ + $cares_includes_stropts + ],[ + AC_MSG_RESULT([yes]) + tst_proto_ioctlsocket_camel="yes" + ],[ + AC_MSG_RESULT([no]) + tst_proto_ioctlsocket_camel="no" + ]) + fi + # + if test "$tst_proto_ioctlsocket_camel" = "yes"; then + AC_MSG_CHECKING([if IoctlSocket is compilable]) + AC_COMPILE_IFELSE([ + AC_LANG_PROGRAM([[ + $cares_includes_stropts + ]],[[ + if(0 != IoctlSocket(0, 0, 0)) + return 1; + ]]) + ],[ + AC_MSG_RESULT([yes]) + tst_compi_ioctlsocket_camel="yes" + ],[ + AC_MSG_RESULT([no]) + tst_compi_ioctlsocket_camel="no" + ]) + fi + # + if test "$tst_compi_ioctlsocket_camel" = "yes"; then + AC_MSG_CHECKING([if IoctlSocket usage allowed]) + if test "x$cares_disallow_ioctlsocket_camel" != "xyes"; then + AC_MSG_RESULT([yes]) + tst_allow_ioctlsocket_camel="yes" + else + AC_MSG_RESULT([no]) + tst_allow_ioctlsocket_camel="no" + fi + fi + # + AC_MSG_CHECKING([if IoctlSocket might be used]) + if test "$tst_links_ioctlsocket_camel" = "yes" && + test "$tst_proto_ioctlsocket_camel" = "yes" && + test "$tst_compi_ioctlsocket_camel" = "yes" && + test "$tst_allow_ioctlsocket_camel" = "yes"; then + AC_MSG_RESULT([yes]) + AC_DEFINE_UNQUOTED(HAVE_IOCTLSOCKET_CAMEL, 1, + [Define to 1 if you have the IoctlSocket camel case function.]) + ac_cv_func_ioctlsocket_camel="yes" + CARES_CHECK_FUNC_IOCTLSOCKET_CAMEL_FIONBIO + else + AC_MSG_RESULT([no]) + ac_cv_func_ioctlsocket_camel="no" + fi +]) + + +dnl CARES_CHECK_FUNC_IOCTLSOCKET_CAMEL_FIONBIO +dnl ------------------------------------------------- +dnl Verify if IoctlSocket with FIONBIO command is available, +dnl can be compiled, and seems to work. If all of these are +dnl true, then HAVE_IOCTLSOCKET_CAMEL_FIONBIO will be defined. + +AC_DEFUN([CARES_CHECK_FUNC_IOCTLSOCKET_CAMEL_FIONBIO], [ + # + tst_compi_ioctlsocket_camel_fionbio="unknown" + tst_allow_ioctlsocket_camel_fionbio="unknown" + # + if test "$ac_cv_func_ioctlsocket_camel" = "yes"; then + AC_MSG_CHECKING([if IoctlSocket FIONBIO is compilable]) + AC_COMPILE_IFELSE([ + AC_LANG_PROGRAM([[ + $cares_includes_stropts + ]],[[ + long flags = 0; + if(0 != ioctlsocket(0, FIONBIO, &flags)) + return 1; + ]]) + ],[ + AC_MSG_RESULT([yes]) + tst_compi_ioctlsocket_camel_fionbio="yes" + ],[ + AC_MSG_RESULT([no]) + tst_compi_ioctlsocket_camel_fionbio="no" + ]) + fi + # + if test "$tst_compi_ioctlsocket_camel_fionbio" = "yes"; then + AC_MSG_CHECKING([if IoctlSocket FIONBIO usage allowed]) + if test "x$cares_disallow_ioctlsocket_camel_fionbio" != "xyes"; then + AC_MSG_RESULT([yes]) + tst_allow_ioctlsocket_camel_fionbio="yes" + else + AC_MSG_RESULT([no]) + tst_allow_ioctlsocket_camel_fionbio="no" + fi + fi + # + AC_MSG_CHECKING([if IoctlSocket FIONBIO might be used]) + if test "$tst_compi_ioctlsocket_camel_fionbio" = "yes" && + test "$tst_allow_ioctlsocket_camel_fionbio" = "yes"; then + AC_MSG_RESULT([yes]) + AC_DEFINE_UNQUOTED(HAVE_IOCTLSOCKET_CAMEL_FIONBIO, 1, + [Define to 1 if you have a working IoctlSocket camel case FIONBIO function.]) + ac_cv_func_ioctlsocket_camel_fionbio="yes" + else + AC_MSG_RESULT([no]) + ac_cv_func_ioctlsocket_camel_fionbio="no" + fi +]) + + +dnl CARES_CHECK_FUNC_SETSOCKOPT +dnl ------------------------------------------------- +dnl Verify if setsockopt is available, prototyped, and +dnl can be compiled. If all of these are true, and +dnl usage has not been previously disallowed with +dnl shell variable cares_disallow_setsockopt, then +dnl HAVE_SETSOCKOPT will be defined. + +AC_DEFUN([CARES_CHECK_FUNC_SETSOCKOPT], [ + AC_REQUIRE([CARES_INCLUDES_WINSOCK2])dnl + AC_REQUIRE([CARES_INCLUDES_SYS_SOCKET])dnl + # + tst_links_setsockopt="unknown" + tst_proto_setsockopt="unknown" + tst_compi_setsockopt="unknown" + tst_allow_setsockopt="unknown" + # + AC_MSG_CHECKING([if setsockopt can be linked]) + AC_LINK_IFELSE([ + AC_LANG_PROGRAM([[ + $cares_includes_winsock2 + $cares_includes_sys_socket + ]],[[ + if(0 != setsockopt(0, 0, 0, 0, 0)) + return 1; + ]]) + ],[ + AC_MSG_RESULT([yes]) + tst_links_setsockopt="yes" + ],[ + AC_MSG_RESULT([no]) + tst_links_setsockopt="no" + ]) + # + if test "$tst_links_setsockopt" = "yes"; then + AC_MSG_CHECKING([if setsockopt is prototyped]) + AC_EGREP_CPP([setsockopt],[ + $cares_includes_winsock2 + $cares_includes_sys_socket + ],[ + AC_MSG_RESULT([yes]) + tst_proto_setsockopt="yes" + ],[ + AC_MSG_RESULT([no]) + tst_proto_setsockopt="no" + ]) + fi + # + if test "$tst_proto_setsockopt" = "yes"; then + AC_MSG_CHECKING([if setsockopt is compilable]) + AC_COMPILE_IFELSE([ + AC_LANG_PROGRAM([[ + $cares_includes_winsock2 + $cares_includes_sys_socket + ]],[[ + if(0 != setsockopt(0, 0, 0, 0, 0)) + return 1; + ]]) + ],[ + AC_MSG_RESULT([yes]) + tst_compi_setsockopt="yes" + ],[ + AC_MSG_RESULT([no]) + tst_compi_setsockopt="no" + ]) + fi + # + if test "$tst_compi_setsockopt" = "yes"; then + AC_MSG_CHECKING([if setsockopt usage allowed]) + if test "x$cares_disallow_setsockopt" != "xyes"; then + AC_MSG_RESULT([yes]) + tst_allow_setsockopt="yes" + else + AC_MSG_RESULT([no]) + tst_allow_setsockopt="no" + fi + fi + # + AC_MSG_CHECKING([if setsockopt might be used]) + if test "$tst_links_setsockopt" = "yes" && + test "$tst_proto_setsockopt" = "yes" && + test "$tst_compi_setsockopt" = "yes" && + test "$tst_allow_setsockopt" = "yes"; then + AC_MSG_RESULT([yes]) + AC_DEFINE_UNQUOTED(HAVE_SETSOCKOPT, 1, + [Define to 1 if you have the setsockopt function.]) + ac_cv_func_setsockopt="yes" + CARES_CHECK_FUNC_SETSOCKOPT_SO_NONBLOCK + else + AC_MSG_RESULT([no]) + ac_cv_func_setsockopt="no" + fi +]) + + +dnl CARES_CHECK_FUNC_SETSOCKOPT_SO_NONBLOCK +dnl ------------------------------------------------- +dnl Verify if setsockopt with the SO_NONBLOCK command is +dnl available, can be compiled, and seems to work. If +dnl all of these are true, then HAVE_SETSOCKOPT_SO_NONBLOCK +dnl will be defined. + +AC_DEFUN([CARES_CHECK_FUNC_SETSOCKOPT_SO_NONBLOCK], [ + # + tst_compi_setsockopt_so_nonblock="unknown" + tst_allow_setsockopt_so_nonblock="unknown" + # + if test "$ac_cv_func_setsockopt" = "yes"; then + AC_MSG_CHECKING([if setsockopt SO_NONBLOCK is compilable]) + AC_COMPILE_IFELSE([ + AC_LANG_PROGRAM([[ + $cares_includes_winsock2 + $cares_includes_sys_socket + ]],[[ + if(0 != setsockopt(0, SOL_SOCKET, SO_NONBLOCK, 0, 0)) + return 1; + ]]) + ],[ + AC_MSG_RESULT([yes]) + tst_compi_setsockopt_so_nonblock="yes" + ],[ + AC_MSG_RESULT([no]) + tst_compi_setsockopt_so_nonblock="no" + ]) + fi + # + if test "$tst_compi_setsockopt_so_nonblock" = "yes"; then + AC_MSG_CHECKING([if setsockopt SO_NONBLOCK usage allowed]) + if test "x$cares_disallow_setsockopt_so_nonblock" != "xyes"; then + AC_MSG_RESULT([yes]) + tst_allow_setsockopt_so_nonblock="yes" + else + AC_MSG_RESULT([no]) + tst_allow_setsockopt_so_nonblock="no" + fi + fi + # + AC_MSG_CHECKING([if setsockopt SO_NONBLOCK might be used]) + if test "$tst_compi_setsockopt_so_nonblock" = "yes" && + test "$tst_allow_setsockopt_so_nonblock" = "yes"; then + AC_MSG_RESULT([yes]) + AC_DEFINE_UNQUOTED(HAVE_SETSOCKOPT_SO_NONBLOCK, 1, + [Define to 1 if you have a working setsockopt SO_NONBLOCK function.]) + ac_cv_func_setsockopt_so_nonblock="yes" + else + AC_MSG_RESULT([no]) + ac_cv_func_setsockopt_so_nonblock="no" + fi +]) + + +dnl CARES_CHECK_FUNC_SOCKET +dnl ------------------------------------------------- +dnl Verify if socket is available, prototyped, and +dnl can be compiled. If all of these are true, and +dnl usage has not been previously disallowed with +dnl shell variable cares_disallow_socket, then +dnl HAVE_SOCKET will be defined. + +AC_DEFUN([CARES_CHECK_FUNC_SOCKET], [ + AC_REQUIRE([CARES_INCLUDES_WINSOCK2])dnl + AC_REQUIRE([CARES_INCLUDES_SYS_SOCKET])dnl + AC_REQUIRE([CARES_INCLUDES_SOCKET])dnl + # + tst_links_socket="unknown" + tst_proto_socket="unknown" + tst_compi_socket="unknown" + tst_allow_socket="unknown" + # + AC_MSG_CHECKING([if socket can be linked]) + AC_LINK_IFELSE([ + AC_LANG_PROGRAM([[ + $cares_includes_winsock2 + $cares_includes_sys_socket + $cares_includes_socket + ]],[[ + if(0 != socket(0, 0, 0)) + return 1; + ]]) + ],[ + AC_MSG_RESULT([yes]) + tst_links_socket="yes" + ],[ + AC_MSG_RESULT([no]) + tst_links_socket="no" + ]) + # + if test "$tst_links_socket" = "yes"; then + AC_MSG_CHECKING([if socket is prototyped]) + AC_EGREP_CPP([socket],[ + $cares_includes_winsock2 + $cares_includes_sys_socket + $cares_includes_socket + ],[ + AC_MSG_RESULT([yes]) + tst_proto_socket="yes" + ],[ + AC_MSG_RESULT([no]) + tst_proto_socket="no" + ]) + fi + # + if test "$tst_proto_socket" = "yes"; then + AC_MSG_CHECKING([if socket is compilable]) + AC_COMPILE_IFELSE([ + AC_LANG_PROGRAM([[ + $cares_includes_winsock2 + $cares_includes_sys_socket + $cares_includes_socket + ]],[[ + if(0 != socket(0, 0, 0)) + return 1; + ]]) + ],[ + AC_MSG_RESULT([yes]) + tst_compi_socket="yes" + ],[ + AC_MSG_RESULT([no]) + tst_compi_socket="no" + ]) + fi + # + if test "$tst_compi_socket" = "yes"; then + AC_MSG_CHECKING([if socket usage allowed]) + if test "x$cares_disallow_socket" != "xyes"; then + AC_MSG_RESULT([yes]) + tst_allow_socket="yes" + else + AC_MSG_RESULT([no]) + tst_allow_socket="no" + fi + fi + # + AC_MSG_CHECKING([if socket might be used]) + if test "$tst_links_socket" = "yes" && + test "$tst_proto_socket" = "yes" && + test "$tst_compi_socket" = "yes" && + test "$tst_allow_socket" = "yes"; then + AC_MSG_RESULT([yes]) + AC_DEFINE_UNQUOTED(HAVE_SOCKET, 1, + [Define to 1 if you have the socket function.]) + ac_cv_func_socket="yes" + else + AC_MSG_RESULT([no]) + ac_cv_func_socket="no" + fi +]) + + +dnl CARES_CHECK_FUNC_STRCASECMP +dnl ------------------------------------------------- +dnl Verify if strcasecmp is available, prototyped, and +dnl can be compiled. If all of these are true, and +dnl usage has not been previously disallowed with +dnl shell variable cares_disallow_strcasecmp, then +dnl HAVE_STRCASECMP will be defined. + +AC_DEFUN([CARES_CHECK_FUNC_STRCASECMP], [ + AC_REQUIRE([CARES_INCLUDES_STRING])dnl + # + tst_links_strcasecmp="unknown" + tst_proto_strcasecmp="unknown" + tst_compi_strcasecmp="unknown" + tst_allow_strcasecmp="unknown" + # + AC_MSG_CHECKING([if strcasecmp can be linked]) + AC_LINK_IFELSE([ + AC_LANG_FUNC_LINK_TRY([strcasecmp]) + ],[ + AC_MSG_RESULT([yes]) + tst_links_strcasecmp="yes" + ],[ + AC_MSG_RESULT([no]) + tst_links_strcasecmp="no" + ]) + # + if test "$tst_links_strcasecmp" = "yes"; then + AC_MSG_CHECKING([if strcasecmp is prototyped]) + AC_EGREP_CPP([strcasecmp],[ + $cares_includes_string + ],[ + AC_MSG_RESULT([yes]) + tst_proto_strcasecmp="yes" + ],[ + AC_MSG_RESULT([no]) + tst_proto_strcasecmp="no" + ]) + fi + # + if test "$tst_proto_strcasecmp" = "yes"; then + AC_MSG_CHECKING([if strcasecmp is compilable]) + AC_COMPILE_IFELSE([ + AC_LANG_PROGRAM([[ + $cares_includes_string + ]],[[ + if(0 != strcasecmp(0, 0)) + return 1; + ]]) + ],[ + AC_MSG_RESULT([yes]) + tst_compi_strcasecmp="yes" + ],[ + AC_MSG_RESULT([no]) + tst_compi_strcasecmp="no" + ]) + fi + # + if test "$tst_compi_strcasecmp" = "yes"; then + AC_MSG_CHECKING([if strcasecmp usage allowed]) + if test "x$cares_disallow_strcasecmp" != "xyes"; then + AC_MSG_RESULT([yes]) + tst_allow_strcasecmp="yes" + else + AC_MSG_RESULT([no]) + tst_allow_strcasecmp="no" + fi + fi + # + AC_MSG_CHECKING([if strcasecmp might be used]) + if test "$tst_links_strcasecmp" = "yes" && + test "$tst_proto_strcasecmp" = "yes" && + test "$tst_compi_strcasecmp" = "yes" && + test "$tst_allow_strcasecmp" = "yes"; then + AC_MSG_RESULT([yes]) + AC_DEFINE_UNQUOTED(HAVE_STRCASECMP, 1, + [Define to 1 if you have the strcasecmp function.]) + ac_cv_func_strcasecmp="yes" + else + AC_MSG_RESULT([no]) + ac_cv_func_strcasecmp="no" + fi +]) + + +dnl CARES_CHECK_FUNC_STRCMPI +dnl ------------------------------------------------- +dnl Verify if strcmpi is available, prototyped, and +dnl can be compiled. If all of these are true, and +dnl usage has not been previously disallowed with +dnl shell variable cares_disallow_strcmpi, then +dnl HAVE_STRCMPI will be defined. + +AC_DEFUN([CARES_CHECK_FUNC_STRCMPI], [ + AC_REQUIRE([CARES_INCLUDES_STRING])dnl + # + tst_links_strcmpi="unknown" + tst_proto_strcmpi="unknown" + tst_compi_strcmpi="unknown" + tst_allow_strcmpi="unknown" + # + AC_MSG_CHECKING([if strcmpi can be linked]) + AC_LINK_IFELSE([ + AC_LANG_FUNC_LINK_TRY([strcmpi]) + ],[ + AC_MSG_RESULT([yes]) + tst_links_strcmpi="yes" + ],[ + AC_MSG_RESULT([no]) + tst_links_strcmpi="no" + ]) + # + if test "$tst_links_strcmpi" = "yes"; then + AC_MSG_CHECKING([if strcmpi is prototyped]) + AC_EGREP_CPP([strcmpi],[ + $cares_includes_string + ],[ + AC_MSG_RESULT([yes]) + tst_proto_strcmpi="yes" + ],[ + AC_MSG_RESULT([no]) + tst_proto_strcmpi="no" + ]) + fi + # + if test "$tst_proto_strcmpi" = "yes"; then + AC_MSG_CHECKING([if strcmpi is compilable]) + AC_COMPILE_IFELSE([ + AC_LANG_PROGRAM([[ + $cares_includes_string + ]],[[ + if(0 != strcmpi(0, 0)) + return 1; + ]]) + ],[ + AC_MSG_RESULT([yes]) + tst_compi_strcmpi="yes" + ],[ + AC_MSG_RESULT([no]) + tst_compi_strcmpi="no" + ]) + fi + # + if test "$tst_compi_strcmpi" = "yes"; then + AC_MSG_CHECKING([if strcmpi usage allowed]) + if test "x$cares_disallow_strcmpi" != "xyes"; then + AC_MSG_RESULT([yes]) + tst_allow_strcmpi="yes" + else + AC_MSG_RESULT([no]) + tst_allow_strcmpi="no" + fi + fi + # + AC_MSG_CHECKING([if strcmpi might be used]) + if test "$tst_links_strcmpi" = "yes" && + test "$tst_proto_strcmpi" = "yes" && + test "$tst_compi_strcmpi" = "yes" && + test "$tst_allow_strcmpi" = "yes"; then + AC_MSG_RESULT([yes]) + AC_DEFINE_UNQUOTED(HAVE_STRCMPI, 1, + [Define to 1 if you have the strcmpi function.]) + ac_cv_func_strcmpi="yes" + else + AC_MSG_RESULT([no]) + ac_cv_func_strcmpi="no" + fi +]) + + +dnl CARES_CHECK_FUNC_STRDUP +dnl ------------------------------------------------- +dnl Verify if strdup is available, prototyped, and +dnl can be compiled. If all of these are true, and +dnl usage has not been previously disallowed with +dnl shell variable cares_disallow_strdup, then +dnl HAVE_STRDUP will be defined. + +AC_DEFUN([CARES_CHECK_FUNC_STRDUP], [ + AC_REQUIRE([CARES_INCLUDES_STRING])dnl + # + tst_links_strdup="unknown" + tst_proto_strdup="unknown" + tst_compi_strdup="unknown" + tst_allow_strdup="unknown" + # + AC_MSG_CHECKING([if strdup can be linked]) + AC_LINK_IFELSE([ + AC_LANG_FUNC_LINK_TRY([strdup]) + ],[ + AC_MSG_RESULT([yes]) + tst_links_strdup="yes" + ],[ + AC_MSG_RESULT([no]) + tst_links_strdup="no" + ]) + # + if test "$tst_links_strdup" = "yes"; then + AC_MSG_CHECKING([if strdup is prototyped]) + AC_EGREP_CPP([strdup],[ + $cares_includes_string + ],[ + AC_MSG_RESULT([yes]) + tst_proto_strdup="yes" + ],[ + AC_MSG_RESULT([no]) + tst_proto_strdup="no" + ]) + fi + # + if test "$tst_proto_strdup" = "yes"; then + AC_MSG_CHECKING([if strdup is compilable]) + AC_COMPILE_IFELSE([ + AC_LANG_PROGRAM([[ + $cares_includes_string + ]],[[ + if(0 != strdup(0)) + return 1; + ]]) + ],[ + AC_MSG_RESULT([yes]) + tst_compi_strdup="yes" + ],[ + AC_MSG_RESULT([no]) + tst_compi_strdup="no" + ]) + fi + # + if test "$tst_compi_strdup" = "yes"; then + AC_MSG_CHECKING([if strdup usage allowed]) + if test "x$cares_disallow_strdup" != "xyes"; then + AC_MSG_RESULT([yes]) + tst_allow_strdup="yes" + else + AC_MSG_RESULT([no]) + tst_allow_strdup="no" + fi + fi + # + AC_MSG_CHECKING([if strdup might be used]) + if test "$tst_links_strdup" = "yes" && + test "$tst_proto_strdup" = "yes" && + test "$tst_compi_strdup" = "yes" && + test "$tst_allow_strdup" = "yes"; then + AC_MSG_RESULT([yes]) + AC_DEFINE_UNQUOTED(HAVE_STRDUP, 1, + [Define to 1 if you have the strdup function.]) + ac_cv_func_strdup="yes" + else + AC_MSG_RESULT([no]) + ac_cv_func_strdup="no" + fi +]) + + +dnl CARES_CHECK_FUNC_STRICMP +dnl ------------------------------------------------- +dnl Verify if stricmp is available, prototyped, and +dnl can be compiled. If all of these are true, and +dnl usage has not been previously disallowed with +dnl shell variable cares_disallow_stricmp, then +dnl HAVE_STRICMP will be defined. + +AC_DEFUN([CARES_CHECK_FUNC_STRICMP], [ + AC_REQUIRE([CARES_INCLUDES_STRING])dnl + # + tst_links_stricmp="unknown" + tst_proto_stricmp="unknown" + tst_compi_stricmp="unknown" + tst_allow_stricmp="unknown" + # + AC_MSG_CHECKING([if stricmp can be linked]) + AC_LINK_IFELSE([ + AC_LANG_FUNC_LINK_TRY([stricmp]) + ],[ + AC_MSG_RESULT([yes]) + tst_links_stricmp="yes" + ],[ + AC_MSG_RESULT([no]) + tst_links_stricmp="no" + ]) + # + if test "$tst_links_stricmp" = "yes"; then + AC_MSG_CHECKING([if stricmp is prototyped]) + AC_EGREP_CPP([stricmp],[ + $cares_includes_string + ],[ + AC_MSG_RESULT([yes]) + tst_proto_stricmp="yes" + ],[ + AC_MSG_RESULT([no]) + tst_proto_stricmp="no" + ]) + fi + # + if test "$tst_proto_stricmp" = "yes"; then + AC_MSG_CHECKING([if stricmp is compilable]) + AC_COMPILE_IFELSE([ + AC_LANG_PROGRAM([[ + $cares_includes_string + ]],[[ + if(0 != stricmp(0, 0)) + return 1; + ]]) + ],[ + AC_MSG_RESULT([yes]) + tst_compi_stricmp="yes" + ],[ + AC_MSG_RESULT([no]) + tst_compi_stricmp="no" + ]) + fi + # + if test "$tst_compi_stricmp" = "yes"; then + AC_MSG_CHECKING([if stricmp usage allowed]) + if test "x$cares_disallow_stricmp" != "xyes"; then + AC_MSG_RESULT([yes]) + tst_allow_stricmp="yes" + else + AC_MSG_RESULT([no]) + tst_allow_stricmp="no" + fi + fi + # + AC_MSG_CHECKING([if stricmp might be used]) + if test "$tst_links_stricmp" = "yes" && + test "$tst_proto_stricmp" = "yes" && + test "$tst_compi_stricmp" = "yes" && + test "$tst_allow_stricmp" = "yes"; then + AC_MSG_RESULT([yes]) + AC_DEFINE_UNQUOTED(HAVE_STRICMP, 1, + [Define to 1 if you have the stricmp function.]) + ac_cv_func_stricmp="yes" + else + AC_MSG_RESULT([no]) + ac_cv_func_stricmp="no" + fi +]) + + +dnl CARES_CHECK_FUNC_STRNCASECMP +dnl ------------------------------------------------- +dnl Verify if strncasecmp is available, prototyped, and +dnl can be compiled. If all of these are true, and +dnl usage has not been previously disallowed with +dnl shell variable cares_disallow_strncasecmp, then +dnl HAVE_STRNCASECMP will be defined. + +AC_DEFUN([CARES_CHECK_FUNC_STRNCASECMP], [ + AC_REQUIRE([CARES_INCLUDES_STRING])dnl + # + tst_links_strncasecmp="unknown" + tst_proto_strncasecmp="unknown" + tst_compi_strncasecmp="unknown" + tst_allow_strncasecmp="unknown" + # + AC_MSG_CHECKING([if strncasecmp can be linked]) + AC_LINK_IFELSE([ + AC_LANG_FUNC_LINK_TRY([strncasecmp]) + ],[ + AC_MSG_RESULT([yes]) + tst_links_strncasecmp="yes" + ],[ + AC_MSG_RESULT([no]) + tst_links_strncasecmp="no" + ]) + # + if test "$tst_links_strncasecmp" = "yes"; then + AC_MSG_CHECKING([if strncasecmp is prototyped]) + AC_EGREP_CPP([strncasecmp],[ + $cares_includes_string + ],[ + AC_MSG_RESULT([yes]) + tst_proto_strncasecmp="yes" + ],[ + AC_MSG_RESULT([no]) + tst_proto_strncasecmp="no" + ]) + fi + # + if test "$tst_proto_strncasecmp" = "yes"; then + AC_MSG_CHECKING([if strncasecmp is compilable]) + AC_COMPILE_IFELSE([ + AC_LANG_PROGRAM([[ + $cares_includes_string + ]],[[ + if(0 != strncasecmp(0, 0, 0)) + return 1; + ]]) + ],[ + AC_MSG_RESULT([yes]) + tst_compi_strncasecmp="yes" + ],[ + AC_MSG_RESULT([no]) + tst_compi_strncasecmp="no" + ]) + fi + # + if test "$tst_compi_strncasecmp" = "yes"; then + AC_MSG_CHECKING([if strncasecmp usage allowed]) + if test "x$cares_disallow_strncasecmp" != "xyes"; then + AC_MSG_RESULT([yes]) + tst_allow_strncasecmp="yes" + else + AC_MSG_RESULT([no]) + tst_allow_strncasecmp="no" + fi + fi + # + AC_MSG_CHECKING([if strncasecmp might be used]) + if test "$tst_links_strncasecmp" = "yes" && + test "$tst_proto_strncasecmp" = "yes" && + test "$tst_compi_strncasecmp" = "yes" && + test "$tst_allow_strncasecmp" = "yes"; then + AC_MSG_RESULT([yes]) + AC_DEFINE_UNQUOTED(HAVE_STRNCASECMP, 1, + [Define to 1 if you have the strncasecmp function.]) + ac_cv_func_strncasecmp="yes" + else + AC_MSG_RESULT([no]) + ac_cv_func_strncasecmp="no" + fi +]) + + +dnl CARES_CHECK_FUNC_STRNCMPI +dnl ------------------------------------------------- +dnl Verify if strncmpi is available, prototyped, and +dnl can be compiled. If all of these are true, and +dnl usage has not been previously disallowed with +dnl shell variable cares_disallow_strncmpi, then +dnl HAVE_STRNCMPI will be defined. + +AC_DEFUN([CARES_CHECK_FUNC_STRNCMPI], [ + AC_REQUIRE([CARES_INCLUDES_STRING])dnl + # + tst_links_strncmpi="unknown" + tst_proto_strncmpi="unknown" + tst_compi_strncmpi="unknown" + tst_allow_strncmpi="unknown" + # + AC_MSG_CHECKING([if strncmpi can be linked]) + AC_LINK_IFELSE([ + AC_LANG_FUNC_LINK_TRY([strncmpi]) + ],[ + AC_MSG_RESULT([yes]) + tst_links_strncmpi="yes" + ],[ + AC_MSG_RESULT([no]) + tst_links_strncmpi="no" + ]) + # + if test "$tst_links_strncmpi" = "yes"; then + AC_MSG_CHECKING([if strncmpi is prototyped]) + AC_EGREP_CPP([strncmpi],[ + $cares_includes_string + ],[ + AC_MSG_RESULT([yes]) + tst_proto_strncmpi="yes" + ],[ + AC_MSG_RESULT([no]) + tst_proto_strncmpi="no" + ]) + fi + # + if test "$tst_proto_strncmpi" = "yes"; then + AC_MSG_CHECKING([if strncmpi is compilable]) + AC_COMPILE_IFELSE([ + AC_LANG_PROGRAM([[ + $cares_includes_string + ]],[[ + if(0 != strncmpi(0, 0)) + return 1; + ]]) + ],[ + AC_MSG_RESULT([yes]) + tst_compi_strncmpi="yes" + ],[ + AC_MSG_RESULT([no]) + tst_compi_strncmpi="no" + ]) + fi + # + if test "$tst_compi_strncmpi" = "yes"; then + AC_MSG_CHECKING([if strncmpi usage allowed]) + if test "x$cares_disallow_strncmpi" != "xyes"; then + AC_MSG_RESULT([yes]) + tst_allow_strncmpi="yes" + else + AC_MSG_RESULT([no]) + tst_allow_strncmpi="no" + fi + fi + # + AC_MSG_CHECKING([if strncmpi might be used]) + if test "$tst_links_strncmpi" = "yes" && + test "$tst_proto_strncmpi" = "yes" && + test "$tst_compi_strncmpi" = "yes" && + test "$tst_allow_strncmpi" = "yes"; then + AC_MSG_RESULT([yes]) + AC_DEFINE_UNQUOTED(HAVE_STRNCMPI, 1, + [Define to 1 if you have the strncmpi function.]) + ac_cv_func_strncmpi="yes" + else + AC_MSG_RESULT([no]) + ac_cv_func_strncmpi="no" + fi +]) + + +dnl CARES_CHECK_FUNC_STRNICMP +dnl ------------------------------------------------- +dnl Verify if strnicmp is available, prototyped, and +dnl can be compiled. If all of these are true, and +dnl usage has not been previously disallowed with +dnl shell variable cares_disallow_strnicmp, then +dnl HAVE_STRNICMP will be defined. + +AC_DEFUN([CARES_CHECK_FUNC_STRNICMP], [ + AC_REQUIRE([CARES_INCLUDES_STRING])dnl + # + tst_links_strnicmp="unknown" + tst_proto_strnicmp="unknown" + tst_compi_strnicmp="unknown" + tst_allow_strnicmp="unknown" + # + AC_MSG_CHECKING([if strnicmp can be linked]) + AC_LINK_IFELSE([ + AC_LANG_FUNC_LINK_TRY([strnicmp]) + ],[ + AC_MSG_RESULT([yes]) + tst_links_strnicmp="yes" + ],[ + AC_MSG_RESULT([no]) + tst_links_strnicmp="no" + ]) + # + if test "$tst_links_strnicmp" = "yes"; then + AC_MSG_CHECKING([if strnicmp is prototyped]) + AC_EGREP_CPP([strnicmp],[ + $cares_includes_string + ],[ + AC_MSG_RESULT([yes]) + tst_proto_strnicmp="yes" + ],[ + AC_MSG_RESULT([no]) + tst_proto_strnicmp="no" + ]) + fi + # + if test "$tst_proto_strnicmp" = "yes"; then + AC_MSG_CHECKING([if strnicmp is compilable]) + AC_COMPILE_IFELSE([ + AC_LANG_PROGRAM([[ + $cares_includes_string + ]],[[ + if(0 != strnicmp(0, 0)) + return 1; + ]]) + ],[ + AC_MSG_RESULT([yes]) + tst_compi_strnicmp="yes" + ],[ + AC_MSG_RESULT([no]) + tst_compi_strnicmp="no" + ]) + fi + # + if test "$tst_compi_strnicmp" = "yes"; then + AC_MSG_CHECKING([if strnicmp usage allowed]) + if test "x$cares_disallow_strnicmp" != "xyes"; then + AC_MSG_RESULT([yes]) + tst_allow_strnicmp="yes" + else + AC_MSG_RESULT([no]) + tst_allow_strnicmp="no" + fi + fi + # + AC_MSG_CHECKING([if strnicmp might be used]) + if test "$tst_links_strnicmp" = "yes" && + test "$tst_proto_strnicmp" = "yes" && + test "$tst_compi_strnicmp" = "yes" && + test "$tst_allow_strnicmp" = "yes"; then + AC_MSG_RESULT([yes]) + AC_DEFINE_UNQUOTED(HAVE_STRNICMP, 1, + [Define to 1 if you have the strnicmp function.]) + ac_cv_func_strnicmp="yes" + else + AC_MSG_RESULT([no]) + ac_cv_func_strnicmp="no" + fi +]) + + +dnl CARES_CHECK_FUNC_WRITEV +dnl ------------------------------------------------- +dnl Verify if writev is available, prototyped, and +dnl can be compiled. If all of these are true, and +dnl usage has not been previously disallowed with +dnl shell variable cares_disallow_writev, then +dnl HAVE_WRITEV will be defined. + +AC_DEFUN([CARES_CHECK_FUNC_WRITEV], [ + AC_REQUIRE([CARES_INCLUDES_SYS_UIO])dnl + # + tst_links_writev="unknown" + tst_proto_writev="unknown" + tst_compi_writev="unknown" + tst_allow_writev="unknown" + # + AC_MSG_CHECKING([if writev can be linked]) + AC_LINK_IFELSE([ + AC_LANG_FUNC_LINK_TRY([writev]) + ],[ + AC_MSG_RESULT([yes]) + tst_links_writev="yes" + ],[ + AC_MSG_RESULT([no]) + tst_links_writev="no" + ]) + # + if test "$tst_links_writev" = "yes"; then + AC_MSG_CHECKING([if writev is prototyped]) + AC_EGREP_CPP([writev],[ + $cares_includes_sys_uio + ],[ + AC_MSG_RESULT([yes]) + tst_proto_writev="yes" + ],[ + AC_MSG_RESULT([no]) + tst_proto_writev="no" + ]) + fi + # + if test "$tst_proto_writev" = "yes"; then + AC_MSG_CHECKING([if writev is compilable]) + AC_COMPILE_IFELSE([ + AC_LANG_PROGRAM([[ + $cares_includes_sys_uio + ]],[[ + if(0 != writev(0, 0, 0)) + return 1; + ]]) + ],[ + AC_MSG_RESULT([yes]) + tst_compi_writev="yes" + ],[ + AC_MSG_RESULT([no]) + tst_compi_writev="no" + ]) + fi + # + if test "$tst_compi_writev" = "yes"; then + AC_MSG_CHECKING([if writev usage allowed]) + if test "x$cares_disallow_writev" != "xyes"; then + AC_MSG_RESULT([yes]) + tst_allow_writev="yes" + else + AC_MSG_RESULT([no]) + tst_allow_writev="no" + fi + fi + # + AC_MSG_CHECKING([if writev might be used]) + if test "$tst_links_writev" = "yes" && + test "$tst_proto_writev" = "yes" && + test "$tst_compi_writev" = "yes" && + test "$tst_allow_writev" = "yes"; then + AC_MSG_RESULT([yes]) + AC_DEFINE_UNQUOTED(HAVE_WRITEV, 1, + [Define to 1 if you have the writev function.]) + ac_cv_func_writev="yes" + else + AC_MSG_RESULT([no]) + ac_cv_func_writev="no" + fi +]) diff --git a/src/c-ares/m4/cares-override.m4 b/src/c-ares/m4/cares-override.m4 new file mode 100644 index 000000000..c7400fc9c --- /dev/null +++ b/src/c-ares/m4/cares-override.m4 @@ -0,0 +1,76 @@ +#*************************************************************************** +#*************************************************************************** + +# File version for 'aclocal' use. Keep it a single number. +# serial 8 + +dnl CARES_OVERRIDE_AUTOCONF +dnl ------------------------------------------------- +dnl Placing a call to this macro in configure.ac after +dnl the one to AC_INIT will make macros in this file +dnl visible to the rest of the compilation overriding +dnl those from Autoconf. + +AC_DEFUN([CARES_OVERRIDE_AUTOCONF], [ +AC_BEFORE([$0],[AC_PROG_LIBTOOL]) +# using cares-override.m4 +]) + +dnl Override Autoconf's AC_LANG_PROGRAM (C) +dnl ------------------------------------------------- +dnl This is done to prevent compiler warning +dnl 'function declaration isn't a prototype' +dnl in function main. This requires at least +dnl a c89 compiler and does not suport K&R. + +m4_define([AC_LANG_PROGRAM(C)], +[$1 +int main (void) +{ +$2 + ; + return 0; +}]) + +dnl Override Autoconf's AC_LANG_CALL (C) +dnl ------------------------------------------------- +dnl This is a backport of Autoconf's 2.60 with the +dnl embedded comments that hit the resulting script +dnl removed. This is done to reduce configure size +dnl and use fixed macro across Autoconf versions. + +m4_define([AC_LANG_CALL(C)], +[AC_LANG_PROGRAM([$1 +m4_if([$2], [main], , +[ +#ifdef __cplusplus +extern "C" +#endif +char $2 ();])], [return $2 ();])]) + +dnl Override Autoconf's AC_LANG_FUNC_LINK_TRY (C) +dnl ------------------------------------------------- +dnl This is a backport of Autoconf's 2.60 with the +dnl embedded comments that hit the resulting script +dnl removed. This is done to reduce configure size +dnl and use fixed macro across Autoconf versions. + +m4_define([AC_LANG_FUNC_LINK_TRY(C)], +[AC_LANG_PROGRAM( +[ +#define $1 innocuous_$1 +#ifdef __STDC__ +# include +#else +# include +#endif +#undef $1 +#ifdef __cplusplus +extern "C" +#endif +char $1 (); +#if defined __stub_$1 || defined __stub___$1 +choke me +#endif +], [return $1 ();])]) + diff --git a/src/c-ares/m4/cares-reentrant.m4 b/src/c-ares/m4/cares-reentrant.m4 new file mode 100644 index 000000000..052326b3c --- /dev/null +++ b/src/c-ares/m4/cares-reentrant.m4 @@ -0,0 +1,611 @@ +#*************************************************************************** +# $Id$ +# +# Copyright (C) 2008 - 2009 by Daniel Stenberg et al +# +# Permission to use, copy, modify, and distribute this software and its +# documentation for any purpose and without fee is hereby granted, provided +# that the above copyright notice appear in all copies and that both that +# copyright notice and this permission notice appear in supporting +# documentation, and that the name of M.I.T. not be used in advertising or +# publicity pertaining to distribution of the software without specific, +# written prior permission. M.I.T. makes no representations about the +# suitability of this software for any purpose. It is provided "as is" +# without express or implied warranty. +# +#*************************************************************************** + +# File version for 'aclocal' use. Keep it a single number. +# serial 6 + +dnl Note 1 +dnl ------ +dnl None of the CARES_CHECK_NEED_REENTRANT_* macros shall use HAVE_FOO_H to +dnl conditionally include header files. These macros are used early in the +dnl configure process much before header file availability is known. + + +dnl CARES_CHECK_NEED_REENTRANT_ERRNO +dnl ------------------------------------------------- +dnl Checks if the preprocessor _REENTRANT definition +dnl makes errno available as a preprocessor macro. + +AC_DEFUN([CARES_CHECK_NEED_REENTRANT_ERRNO], [ + AC_COMPILE_IFELSE([ + AC_LANG_PROGRAM([[ +#include + ]],[[ + if(0 != errno) + return 1; + ]]) + ],[ + tmp_errno="yes" + ],[ + tmp_errno="no" + ]) + if test "$tmp_errno" = "yes"; then + AC_COMPILE_IFELSE([ + AC_LANG_PROGRAM([[ +#include + ]],[[ +#ifdef errno + int dummy=1; +#else + force compilation error +#endif + ]]) + ],[ + tmp_errno="errno_macro_defined" + ],[ + AC_COMPILE_IFELSE([ + AC_LANG_PROGRAM([[ +#define _REENTRANT +#include + ]],[[ +#ifdef errno + int dummy=1; +#else + force compilation error +#endif + ]]) + ],[ + tmp_errno="errno_macro_needs_reentrant" + tmp_need_reentrant="yes" + ]) + ]) + fi +]) + + +dnl CARES_CHECK_NEED_REENTRANT_GMTIME_R +dnl ------------------------------------------------- +dnl Checks if the preprocessor _REENTRANT definition +dnl makes function gmtime_r compiler visible. + +AC_DEFUN([CARES_CHECK_NEED_REENTRANT_GMTIME_R], [ + AC_LINK_IFELSE([ + AC_LANG_FUNC_LINK_TRY([gmtime_r]) + ],[ + tmp_gmtime_r="yes" + ],[ + tmp_gmtime_r="no" + ]) + if test "$tmp_gmtime_r" = "yes"; then + AC_EGREP_CPP([gmtime_r],[ +#include +#include + ],[ + tmp_gmtime_r="proto_declared" + ],[ + AC_EGREP_CPP([gmtime_r],[ +#define _REENTRANT +#include +#include + ],[ + tmp_gmtime_r="proto_needs_reentrant" + tmp_need_reentrant="yes" + ]) + ]) + fi +]) + + +dnl CARES_CHECK_NEED_REENTRANT_LOCALTIME_R +dnl ------------------------------------------------- +dnl Checks if the preprocessor _REENTRANT definition +dnl makes function localtime_r compiler visible. + +AC_DEFUN([CARES_CHECK_NEED_REENTRANT_LOCALTIME_R], [ + AC_LINK_IFELSE([ + AC_LANG_FUNC_LINK_TRY([localtime_r]) + ],[ + tmp_localtime_r="yes" + ],[ + tmp_localtime_r="no" + ]) + if test "$tmp_localtime_r" = "yes"; then + AC_EGREP_CPP([localtime_r],[ +#include +#include + ],[ + tmp_localtime_r="proto_declared" + ],[ + AC_EGREP_CPP([localtime_r],[ +#define _REENTRANT +#include +#include + ],[ + tmp_localtime_r="proto_needs_reentrant" + tmp_need_reentrant="yes" + ]) + ]) + fi +]) + + +dnl CARES_CHECK_NEED_REENTRANT_STRERROR_R +dnl ------------------------------------------------- +dnl Checks if the preprocessor _REENTRANT definition +dnl makes function strerror_r compiler visible. + +AC_DEFUN([CARES_CHECK_NEED_REENTRANT_STRERROR_R], [ + AC_LINK_IFELSE([ + AC_LANG_FUNC_LINK_TRY([strerror_r]) + ],[ + tmp_strerror_r="yes" + ],[ + tmp_strerror_r="no" + ]) + if test "$tmp_strerror_r" = "yes"; then + AC_EGREP_CPP([strerror_r],[ +#include +#include + ],[ + tmp_strerror_r="proto_declared" + ],[ + AC_EGREP_CPP([strerror_r],[ +#define _REENTRANT +#include +#include + ],[ + tmp_strerror_r="proto_needs_reentrant" + tmp_need_reentrant="yes" + ]) + ]) + fi +]) + + +dnl CARES_CHECK_NEED_REENTRANT_STRTOK_R +dnl ------------------------------------------------- +dnl Checks if the preprocessor _REENTRANT definition +dnl makes function strtok_r compiler visible. + +AC_DEFUN([CARES_CHECK_NEED_REENTRANT_STRTOK_R], [ + AC_LINK_IFELSE([ + AC_LANG_FUNC_LINK_TRY([strtok_r]) + ],[ + tmp_strtok_r="yes" + ],[ + tmp_strtok_r="no" + ]) + if test "$tmp_strtok_r" = "yes"; then + AC_EGREP_CPP([strtok_r],[ +#include +#include + ],[ + tmp_strtok_r="proto_declared" + ],[ + AC_EGREP_CPP([strtok_r],[ +#define _REENTRANT +#include +#include + ],[ + tmp_strtok_r="proto_needs_reentrant" + tmp_need_reentrant="yes" + ]) + ]) + fi +]) + + +dnl CARES_CHECK_NEED_REENTRANT_INET_NTOA_R +dnl ------------------------------------------------- +dnl Checks if the preprocessor _REENTRANT definition +dnl makes function inet_ntoa_r compiler visible. + +AC_DEFUN([CARES_CHECK_NEED_REENTRANT_INET_NTOA_R], [ + AC_LINK_IFELSE([ + AC_LANG_FUNC_LINK_TRY([inet_ntoa_r]) + ],[ + tmp_inet_ntoa_r="yes" + ],[ + tmp_inet_ntoa_r="no" + ]) + if test "$tmp_inet_ntoa_r" = "yes"; then + AC_EGREP_CPP([inet_ntoa_r],[ +#include +#include +#include +#include + ],[ + tmp_inet_ntoa_r="proto_declared" + ],[ + AC_EGREP_CPP([inet_ntoa_r],[ +#define _REENTRANT +#include +#include +#include +#include + ],[ + tmp_inet_ntoa_r="proto_needs_reentrant" + tmp_need_reentrant="yes" + ]) + ]) + fi +]) + + +dnl CARES_CHECK_NEED_REENTRANT_GETHOSTBYADDR_R +dnl ------------------------------------------------- +dnl Checks if the preprocessor _REENTRANT definition +dnl makes function gethostbyaddr_r compiler visible. + +AC_DEFUN([CARES_CHECK_NEED_REENTRANT_GETHOSTBYADDR_R], [ + AC_LINK_IFELSE([ + AC_LANG_FUNC_LINK_TRY([gethostbyaddr_r]) + ],[ + tmp_gethostbyaddr_r="yes" + ],[ + tmp_gethostbyaddr_r="no" + ]) + if test "$tmp_gethostbyaddr_r" = "yes"; then + AC_EGREP_CPP([gethostbyaddr_r],[ +#include +#include + ],[ + tmp_gethostbyaddr_r="proto_declared" + ],[ + AC_EGREP_CPP([gethostbyaddr_r],[ +#define _REENTRANT +#include +#include + ],[ + tmp_gethostbyaddr_r="proto_needs_reentrant" + tmp_need_reentrant="yes" + ]) + ]) + fi +]) + + +dnl CARES_CHECK_NEED_REENTRANT_GETHOSTBYNAME_R +dnl ------------------------------------------------- +dnl Checks if the preprocessor _REENTRANT definition +dnl makes function gethostbyname_r compiler visible. + +AC_DEFUN([CARES_CHECK_NEED_REENTRANT_GETHOSTBYNAME_R], [ + AC_LINK_IFELSE([ + AC_LANG_FUNC_LINK_TRY([gethostbyname_r]) + ],[ + tmp_gethostbyname_r="yes" + ],[ + tmp_gethostbyname_r="no" + ]) + if test "$tmp_gethostbyname_r" = "yes"; then + AC_EGREP_CPP([gethostbyname_r],[ +#include +#include + ],[ + tmp_gethostbyname_r="proto_declared" + ],[ + AC_EGREP_CPP([gethostbyname_r],[ +#define _REENTRANT +#include +#include + ],[ + tmp_gethostbyname_r="proto_needs_reentrant" + tmp_need_reentrant="yes" + ]) + ]) + fi +]) + + +dnl CARES_CHECK_NEED_REENTRANT_GETPROTOBYNAME_R +dnl ------------------------------------------------- +dnl Checks if the preprocessor _REENTRANT definition +dnl makes function getprotobyname_r compiler visible. + +AC_DEFUN([CARES_CHECK_NEED_REENTRANT_GETPROTOBYNAME_R], [ + AC_LINK_IFELSE([ + AC_LANG_FUNC_LINK_TRY([getprotobyname_r]) + ],[ + tmp_getprotobyname_r="yes" + ],[ + tmp_getprotobyname_r="no" + ]) + if test "$tmp_getprotobyname_r" = "yes"; then + AC_EGREP_CPP([getprotobyname_r],[ +#include +#include + ],[ + tmp_getprotobyname_r="proto_declared" + ],[ + AC_EGREP_CPP([getprotobyname_r],[ +#define _REENTRANT +#include +#include + ],[ + tmp_getprotobyname_r="proto_needs_reentrant" + tmp_need_reentrant="yes" + ]) + ]) + fi +]) + + +dnl CARES_CHECK_NEED_REENTRANT_GETSERVBYPORT_R +dnl ------------------------------------------------- +dnl Checks if the preprocessor _REENTRANT definition +dnl makes function getservbyport_r compiler visible. + +AC_DEFUN([CARES_CHECK_NEED_REENTRANT_GETSERVBYPORT_R], [ + AC_LINK_IFELSE([ + AC_LANG_FUNC_LINK_TRY([getservbyport_r]) + ],[ + tmp_getservbyport_r="yes" + ],[ + tmp_getservbyport_r="no" + ]) + if test "$tmp_getservbyport_r" = "yes"; then + AC_EGREP_CPP([getservbyport_r],[ +#include +#include + ],[ + tmp_getservbyport_r="proto_declared" + ],[ + AC_EGREP_CPP([getservbyport_r],[ +#define _REENTRANT +#include +#include + ],[ + tmp_getservbyport_r="proto_needs_reentrant" + tmp_need_reentrant="yes" + ]) + ]) + fi +]) + + +dnl CARES_CHECK_NEED_REENTRANT_FUNCTIONS_R +dnl ------------------------------------------------- +dnl Checks if the preprocessor _REENTRANT definition +dnl makes several _r functions compiler visible. +dnl Internal macro for CARES_CONFIGURE_REENTRANT. + +AC_DEFUN([CARES_CHECK_NEED_REENTRANT_FUNCTIONS_R], [ + if test "$tmp_need_reentrant" = "no"; then + CARES_CHECK_NEED_REENTRANT_GMTIME_R + fi + if test "$tmp_need_reentrant" = "no"; then + CARES_CHECK_NEED_REENTRANT_LOCALTIME_R + fi + if test "$tmp_need_reentrant" = "no"; then + CARES_CHECK_NEED_REENTRANT_STRERROR_R + fi + if test "$tmp_need_reentrant" = "no"; then + CARES_CHECK_NEED_REENTRANT_STRTOK_R + fi + if test "$tmp_need_reentrant" = "no"; then + CARES_CHECK_NEED_REENTRANT_INET_NTOA_R + fi + if test "$tmp_need_reentrant" = "no"; then + CARES_CHECK_NEED_REENTRANT_GETHOSTBYADDR_R + fi + if test "$tmp_need_reentrant" = "no"; then + CARES_CHECK_NEED_REENTRANT_GETHOSTBYNAME_R + fi + if test "$tmp_need_reentrant" = "no"; then + CARES_CHECK_NEED_REENTRANT_GETPROTOBYNAME_R + fi + if test "$tmp_need_reentrant" = "no"; then + CARES_CHECK_NEED_REENTRANT_GETSERVBYPORT_R + fi +]) + + +dnl CARES_CHECK_NEED_REENTRANT_SYSTEM +dnl ------------------------------------------------- +dnl Checks if the preprocessor _REENTRANT definition +dnl must be unconditionally done for this platform. +dnl Internal macro for CARES_CONFIGURE_REENTRANT. + +AC_DEFUN([CARES_CHECK_NEED_REENTRANT_SYSTEM], [ + case $host_os in + solaris*) + tmp_need_reentrant="yes" + ;; + *) + tmp_need_reentrant="no" + ;; + esac +]) + + +dnl CARES_CHECK_NEED_THREAD_SAFE_SYSTEM +dnl ------------------------------------------------- +dnl Checks if the preprocessor _THREAD_SAFE definition +dnl must be unconditionally done for this platform. +dnl Internal macro for CARES_CONFIGURE_THREAD_SAFE. + +AC_DEFUN([CARES_CHECK_NEED_THREAD_SAFE_SYSTEM], [ + case $host_os in + aix[[123]].* | aix4.[[012]].*) + dnl aix 4.2 and older + tmp_need_thread_safe="no" + ;; + aix*) + dnl AIX 4.3 and newer + tmp_need_thread_safe="yes" + ;; + *) + tmp_need_thread_safe="no" + ;; + esac +]) + + +dnl CARES_CONFIGURE_FROM_NOW_ON_WITH_REENTRANT +dnl ------------------------------------------------- +dnl This macro ensures that configuration tests done +dnl after this will execute with preprocessor symbol +dnl _REENTRANT defined. This macro also ensures that +dnl the generated config file defines NEED_REENTRANT +dnl and that in turn setup.h will define _REENTRANT. +dnl Internal macro for CARES_CONFIGURE_REENTRANT. + +AC_DEFUN([CARES_CONFIGURE_FROM_NOW_ON_WITH_REENTRANT], [ +AC_DEFINE(NEED_REENTRANT, 1, + [Define to 1 if _REENTRANT preprocessor symbol must be defined.]) +cat >>confdefs.h <<_EOF +#ifndef _REENTRANT +# define _REENTRANT +#endif +_EOF +]) + + +dnl CARES_CONFIGURE_FROM_NOW_ON_WITH_THREAD_SAFE +dnl ------------------------------------------------- +dnl This macro ensures that configuration tests done +dnl after this will execute with preprocessor symbol +dnl _THREAD_SAFE defined. This macro also ensures that +dnl the generated config file defines NEED_THREAD_SAFE +dnl and that in turn setup.h will define _THREAD_SAFE. +dnl Internal macro for CARES_CONFIGURE_THREAD_SAFE. + +AC_DEFUN([CARES_CONFIGURE_FROM_NOW_ON_WITH_THREAD_SAFE], [ +AC_DEFINE(NEED_THREAD_SAFE, 1, + [Define to 1 if _THREAD_SAFE preprocessor symbol must be defined.]) +cat >>confdefs.h <<_EOF +#ifndef _THREAD_SAFE +# define _THREAD_SAFE +#endif +_EOF +]) + + +dnl CARES_CONFIGURE_REENTRANT +dnl ------------------------------------------------- +dnl This first checks if the preprocessor _REENTRANT +dnl symbol is already defined. If it isn't currently +dnl defined a set of checks are performed to verify +dnl if its definition is required to make visible to +dnl the compiler a set of *_r functions. Finally, if +dnl _REENTRANT is already defined or needed it takes +dnl care of making adjustments necessary to ensure +dnl that it is defined equally for further configure +dnl tests and generated config file. + +AC_DEFUN([CARES_CONFIGURE_REENTRANT], [ + AC_PREREQ([2.50])dnl + # + AC_MSG_CHECKING([if _REENTRANT is already defined]) + AC_COMPILE_IFELSE([ + AC_LANG_PROGRAM([[ + ]],[[ +#ifdef _REENTRANT + int dummy=1; +#else + force compilation error +#endif + ]]) + ],[ + AC_MSG_RESULT([yes]) + tmp_reentrant_initially_defined="yes" + ],[ + AC_MSG_RESULT([no]) + tmp_reentrant_initially_defined="no" + ]) + # + if test "$tmp_reentrant_initially_defined" = "no"; then + AC_MSG_CHECKING([if _REENTRANT is actually needed]) + CARES_CHECK_NEED_REENTRANT_SYSTEM + if test "$tmp_need_reentrant" = "no"; then + CARES_CHECK_NEED_REENTRANT_ERRNO + fi + if test "$tmp_need_reentrant" = "no"; then + CARES_CHECK_NEED_REENTRANT_FUNCTIONS_R + fi + if test "$tmp_need_reentrant" = "yes"; then + AC_MSG_RESULT([yes]) + else + AC_MSG_RESULT([no]) + fi + fi + # + AC_MSG_CHECKING([if _REENTRANT is onwards defined]) + if test "$tmp_reentrant_initially_defined" = "yes" || + test "$tmp_need_reentrant" = "yes"; then + CARES_CONFIGURE_FROM_NOW_ON_WITH_REENTRANT + AC_MSG_RESULT([yes]) + else + AC_MSG_RESULT([no]) + fi + # +]) + + +dnl CARES_CONFIGURE_THREAD_SAFE +dnl ------------------------------------------------- +dnl This first checks if the preprocessor _THREAD_SAFE +dnl symbol is already defined. If it isn't currently +dnl defined a set of checks are performed to verify +dnl if its definition is required. Finally, if +dnl _THREAD_SAFE is already defined or needed it takes +dnl care of making adjustments necessary to ensure +dnl that it is defined equally for further configure +dnl tests and generated config file. + +AC_DEFUN([CARES_CONFIGURE_THREAD_SAFE], [ + AC_PREREQ([2.50])dnl + # + AC_MSG_CHECKING([if _THREAD_SAFE is already defined]) + AC_COMPILE_IFELSE([ + AC_LANG_PROGRAM([[ + ]],[[ +#ifdef _THREAD_SAFE + int dummy=1; +#else + force compilation error +#endif + ]]) + ],[ + AC_MSG_RESULT([yes]) + tmp_thread_safe_initially_defined="yes" + ],[ + AC_MSG_RESULT([no]) + tmp_thread_safe_initially_defined="no" + ]) + # + if test "$tmp_thread_safe_initially_defined" = "no"; then + AC_MSG_CHECKING([if _THREAD_SAFE is actually needed]) + CARES_CHECK_NEED_THREAD_SAFE_SYSTEM + if test "$tmp_need_thread_safe" = "yes"; then + AC_MSG_RESULT([yes]) + else + AC_MSG_RESULT([no]) + fi + fi + # + AC_MSG_CHECKING([if _THREAD_SAFE is onwards defined]) + if test "$tmp_thread_safe_initially_defined" = "yes" || + test "$tmp_need_thread_safe" = "yes"; then + CARES_CONFIGURE_FROM_NOW_ON_WITH_THREAD_SAFE + AC_MSG_RESULT([yes]) + else + AC_MSG_RESULT([no]) + fi + # +]) diff --git a/src/c-ares/m4/xc-am-iface.m4 b/src/c-ares/m4/xc-am-iface.m4 new file mode 100644 index 000000000..1571c211f --- /dev/null +++ b/src/c-ares/m4/xc-am-iface.m4 @@ -0,0 +1,253 @@ +#--------------------------------------------------------------------------- +# +# xc-am-iface.m4 +# +# Copyright (c) 2013 Daniel Stenberg +# +# Permission to use, copy, modify, and distribute this software for any +# purpose with or without fee is hereby granted, provided that the above +# copyright notice and this permission notice appear in all copies. +# +# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES +# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF +# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR +# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES +# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN +# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF +# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. +# +#--------------------------------------------------------------------------- + +# serial 1 + + +dnl _XC_AUTOMAKE_BODY +dnl ------------------------------------------------- +dnl Private macro. +dnl +dnl This macro performs embedding of automake initialization +dnl code into configure script. When automake version 1.14 or +dnl newer is used at configure script generation time, this +dnl results in 'subdir-objects' automake option being used. +dnl When using automake versions older than 1.14 this option +dnl is not used when generating configure script. +dnl +dnl Existence of automake _AM_PROG_CC_C_O m4 private macro +dnl is used to differentiate automake version 1.14 from older +dnl ones which lack this macro. + +m4_define([_XC_AUTOMAKE_BODY], +[dnl +## --------------------------------------- ## +## Start of automake initialization code ## +## --------------------------------------- ## +m4_ifdef([_AM_PROG_CC_C_O], +[ +AM_INIT_AUTOMAKE([subdir-objects]) +],[ +AM_INIT_AUTOMAKE +])dnl +## ------------------------------------- ## +## End of automake initialization code ## +## ------------------------------------- ## +dnl +m4_define([$0], [])[]dnl +]) + + +dnl XC_AUTOMAKE +dnl ------------------------------------------------- +dnl Public macro. +dnl +dnl This macro embeds automake machinery into configure +dnl script regardless of automake version used in order +dnl to generate configure script. +dnl +dnl When using automake version 1.14 or newer, automake +dnl initialization option 'subdir-objects' is used to +dnl generate the configure script, otherwise this option +dnl is not used. + +AC_DEFUN([XC_AUTOMAKE], +[dnl +AC_PREREQ([2.50])dnl +dnl +AC_BEFORE([$0],[AM_INIT_AUTOMAKE])dnl +dnl +_XC_AUTOMAKE_BODY +dnl +m4_ifdef([AM_INIT_AUTOMAKE], + [m4_undefine([AM_INIT_AUTOMAKE])])dnl +dnl +m4_define([$0], [])[]dnl +]) + + +dnl _XC_AMEND_DISTCLEAN_BODY ([LIST-OF-SUBDIRS]) +dnl ------------------------------------------------- +dnl Private macro. +dnl +dnl This macro performs shell code embedding into +dnl configure script in order to modify distclean +dnl and maintainer-clean targets of makefiles which +dnl are located in given list of subdirs. +dnl +dnl See XC_AMEND_DISTCLEAN comments for details. + +m4_define([_XC_AMEND_DISTCLEAN_BODY], +[dnl +## ---------------------------------- ## +## Start of distclean amending code ## +## ---------------------------------- ## + +for xc_subdir in [$1] +do + +if test ! -f "$xc_subdir/Makefile"; then + echo "$xc_msg_err $xc_subdir/Makefile file not found. $xc_msg_abrt" >&2 + exit 1 +fi + +# Fetch dependency tracking file list from Makefile include lines. + +xc_inc_lines=`grep '^include .*(DEPDIR)' "$xc_subdir/Makefile" 2>/dev/null` +xc_cnt_words=`echo "$xc_inc_lines" | wc -w | tr -d "$xc_space$xc_tab"` + +# --disable-dependency-tracking might have been used, consequently +# there is nothing to amend without a dependency tracking file list. + +if test $xc_cnt_words -gt 0; then + +AC_MSG_NOTICE([amending $xc_subdir/Makefile]) + +# Build Makefile specific patch hunk. + +xc_p="$xc_subdir/xc_patch.tmp" + +xc_rm_depfiles=`echo "$xc_inc_lines" \ + | $SED 's%include% -rm -f%' 2>/dev/null` + +xc_dep_subdirs=`echo "$xc_inc_lines" \ + | $SED 's%include[[ ]][[ ]]*%%' 2>/dev/null \ + | $SED 's%(DEPDIR)/.*%(DEPDIR)%' 2>/dev/null \ + | sort | uniq` + +echo "$xc_rm_depfiles" >$xc_p + +for xc_dep_dir in $xc_dep_subdirs; do + echo "${xc_tab}@xm_dep_cnt=\`ls $xc_dep_dir | wc -l 2>/dev/null\`; \\" >>$xc_p + echo "${xc_tab}if test \$\$xm_dep_cnt -eq 0 && test -d $xc_dep_dir; then \\" >>$xc_p + echo "${xc_tab} rm -rf $xc_dep_dir; \\" >>$xc_p + echo "${xc_tab}fi" >>$xc_p +done + +# Build Makefile patching sed scripts. + +xc_s1="$xc_subdir/xc_script_1.tmp" +xc_s2="$xc_subdir/xc_script_2.tmp" +xc_s3="$xc_subdir/xc_script_3.tmp" + +cat >$xc_s1 <<\_EOT +/^distclean[[ ]]*:/,/^[[^ ]][[^ ]]*:/{ + s/^.*(DEPDIR)/___xc_depdir_line___/ +} +/^maintainer-clean[[ ]]*:/,/^[[^ ]][[^ ]]*:/{ + s/^.*(DEPDIR)/___xc_depdir_line___/ +} +_EOT + +cat >$xc_s2 <<\_EOT +/___xc_depdir_line___$/{ + N + /___xc_depdir_line___$/D +} +_EOT + +cat >$xc_s3 <<_EOT +/^___xc_depdir_line___/{ + r $xc_p + d +} +_EOT + +# Apply patch to Makefile and cleanup. + +$SED -f "$xc_s1" "$xc_subdir/Makefile" >"$xc_subdir/Makefile.tmp1" +$SED -f "$xc_s2" "$xc_subdir/Makefile.tmp1" >"$xc_subdir/Makefile.tmp2" +$SED -f "$xc_s3" "$xc_subdir/Makefile.tmp2" >"$xc_subdir/Makefile.tmp3" + +if test -f "$xc_subdir/Makefile.tmp3"; then + mv -f "$xc_subdir/Makefile.tmp3" "$xc_subdir/Makefile" +fi + +test -f "$xc_subdir/Makefile.tmp1" && rm -f "$xc_subdir/Makefile.tmp1" +test -f "$xc_subdir/Makefile.tmp2" && rm -f "$xc_subdir/Makefile.tmp2" +test -f "$xc_subdir/Makefile.tmp3" && rm -f "$xc_subdir/Makefile.tmp3" + +test -f "$xc_p" && rm -f "$xc_p" +test -f "$xc_s1" && rm -f "$xc_s1" +test -f "$xc_s2" && rm -f "$xc_s2" +test -f "$xc_s3" && rm -f "$xc_s3" + +fi + +done + +## -------------------------------- ## +## End of distclean amending code ## +## -------------------------------- ## +dnl +m4_define([$0], [])[]dnl +]) + + +dnl XC_AMEND_DISTCLEAN ([LIST-OF-SUBDIRS]) +dnl ------------------------------------------------- +dnl Public macro. +dnl +dnl This macro embeds shell code into configure script +dnl that amends, at configure runtime, the distclean +dnl and maintainer-clean targets of Makefiles located +dnl in all subdirs given in the mandatory white-space +dnl separated list argument. +dnl +dnl Embedding only takes place when using automake 1.14 +dnl or newer, otherwise amending code is not included +dnl in generated configure script. +dnl +dnl distclean and maintainer-clean targets are modified +dnl to avoid unconditional removal of dependency subdirs +dnl which triggers distclean and maintainer-clean errors +dnl when using automake 'subdir-objects' option along +dnl with per-target objects and source files existing in +dnl multiple subdirs used for different build targets. +dnl +dnl New behavior first removes each dependency tracking +dnl file independently, and only removes each dependency +dnl subdir when it finds out that it no longer holds any +dnl dependency tracking file. +dnl +dnl When configure option --disable-dependency-tracking +dnl is used no amending takes place given that there are +dnl no dependency tracking files. + +AC_DEFUN([XC_AMEND_DISTCLEAN], +[dnl +AC_PREREQ([2.50])dnl +dnl +m4_ifdef([_AC_OUTPUT_MAIN_LOOP], + [m4_provide_if([_AC_OUTPUT_MAIN_LOOP], [], + [m4_fatal([call to AC_OUTPUT needed before $0])])])dnl +dnl +m4_if([$#], [1], [], [m4_fatal([$0: wrong number of arguments])])dnl +m4_if([$1], [], [m4_fatal([$0: missing argument])])dnl +dnl +AC_REQUIRE([XC_CONFIGURE_PREAMBLE])dnl +dnl +m4_ifdef([_AM_PROG_CC_C_O], +[ +_XC_AMEND_DISTCLEAN_BODY([$1]) +])dnl +m4_define([$0], [])[]dnl +]) + diff --git a/src/c-ares/m4/xc-cc-check.m4 b/src/c-ares/m4/xc-cc-check.m4 new file mode 100644 index 000000000..cd5540531 --- /dev/null +++ b/src/c-ares/m4/xc-cc-check.m4 @@ -0,0 +1,96 @@ +#--------------------------------------------------------------------------- +# +# xc-cc-check.m4 +# +# Copyright (c) 2013 Daniel Stenberg +# +# Permission to use, copy, modify, and distribute this software for any +# purpose with or without fee is hereby granted, provided that the above +# copyright notice and this permission notice appear in all copies. +# +# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES +# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF +# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR +# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES +# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN +# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF +# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. +# +#--------------------------------------------------------------------------- + +# serial 1 + + +dnl _XC_PROG_CC_PREAMBLE +dnl ------------------------------------------------- +dnl Private macro. + +AC_DEFUN([_XC_PROG_CC_PREAMBLE], [ + xc_prog_cc_prev_IFS=$IFS + xc_prog_cc_prev_LIBS=$LIBS + xc_prog_cc_prev_CFLAGS=$CFLAGS + xc_prog_cc_prev_LDFLAGS=$LDFLAGS + xc_prog_cc_prev_CPPFLAGS=$CPPFLAGS +]) + + +dnl _XC_PROG_CC_POSTLUDE +dnl ------------------------------------------------- +dnl Private macro. + +AC_DEFUN([_XC_PROG_CC_POSTLUDE], [ + IFS=$xc_prog_cc_prev_IFS + LIBS=$xc_prog_cc_prev_LIBS + CFLAGS=$xc_prog_cc_prev_CFLAGS + LDFLAGS=$xc_prog_cc_prev_LDFLAGS + CPPFLAGS=$xc_prog_cc_prev_CPPFLAGS + AC_SUBST([CC])dnl + AC_SUBST([CPP])dnl + AC_SUBST([LIBS])dnl + AC_SUBST([CFLAGS])dnl + AC_SUBST([LDFLAGS])dnl + AC_SUBST([CPPFLAGS])dnl +]) + + +dnl _XC_PROG_CC +dnl ------------------------------------------------- +dnl Private macro. + +AC_DEFUN([_XC_PROG_CC], [ + AC_REQUIRE([_XC_PROG_CC_PREAMBLE])dnl + AC_REQUIRE([XC_CHECK_USER_FLAGS])dnl + AC_REQUIRE([AC_PROG_INSTALL])dnl + AC_REQUIRE([AC_PROG_CC])dnl + AC_REQUIRE([AM_PROG_CC_C_O])dnl + AC_REQUIRE([AC_PROG_CPP])dnl + AC_REQUIRE([_XC_PROG_CC_POSTLUDE])dnl +]) + + +dnl XC_CHECK_PROG_CC +dnl ------------------------------------------------- +dnl Public macro. +dnl +dnl Checks for C compiler and C preprocessor programs, +dnl while doing some previous sanity validation on user +dnl provided LIBS, LDFLAGS, CPPFLAGS and CFLAGS values +dnl that must succeed in order to continue execution. +dnl +dnl This sets variables CC and CPP, while preventing +dnl LIBS, LDFLAGS, CFLAGS, CPPFLAGS and IFS from being +dnl unexpectedly changed by underlying macros. + +AC_DEFUN([XC_CHECK_PROG_CC], [ + AC_PREREQ([2.50])dnl + AC_BEFORE([$0],[_XC_PROG_CC_PREAMBLE])dnl + AC_BEFORE([$0],[AC_PROG_INSTALL])dnl + AC_BEFORE([$0],[AC_PROG_CC])dnl + AC_BEFORE([$0],[AM_PROG_CC_C_O])dnl + AC_BEFORE([$0],[AC_PROG_CPP])dnl + AC_BEFORE([$0],[AC_PROG_LIBTOOL])dnl + AC_BEFORE([$0],[AM_INIT_AUTOMAKE])dnl + AC_BEFORE([$0],[_XC_PROG_CC_POSTLUDE])dnl + AC_REQUIRE([_XC_PROG_CC])dnl +]) + diff --git a/src/c-ares/m4/xc-lt-iface.m4 b/src/c-ares/m4/xc-lt-iface.m4 new file mode 100644 index 000000000..0b90d5f25 --- /dev/null +++ b/src/c-ares/m4/xc-lt-iface.m4 @@ -0,0 +1,465 @@ +#--------------------------------------------------------------------------- +# +# xc-lt-iface.m4 +# +# Copyright (c) 2013 Daniel Stenberg +# +# Permission to use, copy, modify, and distribute this software for any +# purpose with or without fee is hereby granted, provided that the above +# copyright notice and this permission notice appear in all copies. +# +# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES +# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF +# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR +# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES +# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN +# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF +# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. +# +#--------------------------------------------------------------------------- + +# serial 1 + + +dnl _XC_LIBTOOL_PREAMBLE +dnl ------------------------------------------------- +dnl Private macro. +dnl +dnl Checks some configure script options related with +dnl libtool and customizes its default behavior before +dnl libtool code is actually used in script. + +m4_define([_XC_LIBTOOL_PREAMBLE], +[dnl +# ------------------------------------ # +# Determine libtool default behavior # +# ------------------------------------ # + +# +# Default behavior is to enable shared and static libraries on systems +# where libtool knows how to build both library versions, and does not +# require separate configuration and build runs for each flavor. +# + +xc_lt_want_enable_shared='yes' +xc_lt_want_enable_static='yes' + +# +# User may have disabled shared or static libraries. +# +case "x$enable_shared" in @%:@ ( + xno) + xc_lt_want_enable_shared='no' + ;; +esac +case "x$enable_static" in @%:@ ( + xno) + xc_lt_want_enable_static='no' + ;; +esac +if test "x$xc_lt_want_enable_shared" = 'xno' && + test "x$xc_lt_want_enable_static" = 'xno'; then + AC_MSG_ERROR([can not disable shared and static libraries simultaneously]) +fi + +# +# Default behavior on systems that require independent configuration +# and build runs for shared and static is to enable shared libraries +# and disable static ones. On these systems option '--disable-shared' +# must be used in order to build a proper static library. +# + +if test "x$xc_lt_want_enable_shared" = 'xyes' && + test "x$xc_lt_want_enable_static" = 'xyes'; then + case $host_os in @%:@ ( + mingw* | pw32* | cegcc* | os2* | aix*) + xc_lt_want_enable_static='no' + ;; + esac +fi + +# +# Make libtool aware of current shared and static library preferences +# taking in account that, depending on host characteristics, libtool +# may modify these option preferences later in this configure script. +# + +enable_shared=$xc_lt_want_enable_shared +enable_static=$xc_lt_want_enable_static + +# +# Default behavior is to build PIC objects for shared libraries and +# non-PIC objects for static libraries. +# + +xc_lt_want_with_pic='default' + +# +# User may have specified PIC preference. +# + +case "x$with_pic" in @%:@ (( + xno) + xc_lt_want_with_pic='no' + ;; + xyes) + xc_lt_want_with_pic='yes' + ;; +esac + +# +# Default behavior on some systems where building a shared library out +# of non-PIC compiled objects will fail with following linker error +# "relocation R_X86_64_32 can not be used when making a shared object" +# is to build PIC objects even for static libraries. This behavior may +# be overriden using 'configure --disable-shared --without-pic'. +# + +if test "x$xc_lt_want_with_pic" = 'xdefault'; then + case $host_cpu in @%:@ ( + x86_64 | amd64 | ia64) + case $host_os in @%:@ ( + linux* | freebsd*) + xc_lt_want_with_pic='yes' + ;; + esac + ;; + esac +fi + +# +# Make libtool aware of current PIC preference taking in account that, +# depending on host characteristics, libtool may modify PIC default +# behavior to fit host system idiosyncrasies later in this script. +# + +with_pic=$xc_lt_want_with_pic +dnl +m4_define([$0],[])dnl +]) + + +dnl _XC_LIBTOOL_BODY +dnl ------------------------------------------------- +dnl Private macro. +dnl +dnl This macro performs embedding of libtool code into +dnl configure script, regardless of libtool version in +dnl use when generating configure script. + +m4_define([_XC_LIBTOOL_BODY], +[dnl +## ----------------------- ## +## Start of libtool code ## +## ----------------------- ## +m4_ifdef([LT_INIT], +[dnl +LT_INIT([win32-dll]) +],[dnl +AC_LIBTOOL_WIN32_DLL +AC_PROG_LIBTOOL +])dnl +## --------------------- ## +## End of libtool code ## +## --------------------- ## +dnl +m4_define([$0], [])[]dnl +]) + + +dnl _XC_CHECK_LT_BUILD_LIBRARIES +dnl ------------------------------------------------- +dnl Private macro. +dnl +dnl Checks wether libtool shared and static libraries +dnl are finally built depending on user input, default +dnl behavior and knowledge that libtool has about host +dnl characteristics. +dnl Results stored in following shell variables: +dnl xc_lt_build_shared +dnl xc_lt_build_static + +m4_define([_XC_CHECK_LT_BUILD_LIBRARIES], +[dnl +# +# Verify if finally libtool shared libraries will be built +# + +case "x$enable_shared" in @%:@ (( + xyes | xno) + xc_lt_build_shared=$enable_shared + ;; + *) + AC_MSG_ERROR([unexpected libtool enable_shared value: $enable_shared]) + ;; +esac + +# +# Verify if finally libtool static libraries will be built +# + +case "x$enable_static" in @%:@ (( + xyes | xno) + xc_lt_build_static=$enable_static + ;; + *) + AC_MSG_ERROR([unexpected libtool enable_static value: $enable_static]) + ;; +esac +dnl +m4_define([$0],[])dnl +]) + + +dnl _XC_CHECK_LT_SHLIB_USE_VERSION_INFO +dnl ------------------------------------------------- +dnl Private macro. +dnl +dnl Checks if the -version-info linker flag must be +dnl provided when building libtool shared libraries. +dnl Result stored in xc_lt_shlib_use_version_info. + +m4_define([_XC_CHECK_LT_SHLIB_USE_VERSION_INFO], +[dnl +# +# Verify if libtool shared libraries should be linked using flag -version-info +# + +AC_MSG_CHECKING([whether to build shared libraries with -version-info]) +xc_lt_shlib_use_version_info='yes' +if test "x$version_type" = 'xnone'; then + xc_lt_shlib_use_version_info='no' +fi +case $host_os in @%:@ ( + amigaos*) + xc_lt_shlib_use_version_info='yes' + ;; +esac +AC_MSG_RESULT([$xc_lt_shlib_use_version_info]) +dnl +m4_define([$0], [])[]dnl +]) + + +dnl _XC_CHECK_LT_SHLIB_USE_NO_UNDEFINED +dnl ------------------------------------------------- +dnl Private macro. +dnl +dnl Checks if the -no-undefined linker flag must be +dnl provided when building libtool shared libraries. +dnl Result stored in xc_lt_shlib_use_no_undefined. + +m4_define([_XC_CHECK_LT_SHLIB_USE_NO_UNDEFINED], +[dnl +# +# Verify if libtool shared libraries should be linked using flag -no-undefined +# + +AC_MSG_CHECKING([whether to build shared libraries with -no-undefined]) +xc_lt_shlib_use_no_undefined='no' +if test "x$allow_undefined" = 'xno'; then + xc_lt_shlib_use_no_undefined='yes' +elif test "x$allow_undefined_flag" = 'xunsupported'; then + xc_lt_shlib_use_no_undefined='yes' +fi +case $host_os in @%:@ ( + cygwin* | mingw* | pw32* | cegcc* | os2* | aix*) + xc_lt_shlib_use_no_undefined='yes' + ;; +esac +AC_MSG_RESULT([$xc_lt_shlib_use_no_undefined]) +dnl +m4_define([$0], [])[]dnl +]) + + +dnl _XC_CHECK_LT_SHLIB_USE_MIMPURE_TEXT +dnl ------------------------------------------------- +dnl Private macro. +dnl +dnl Checks if the -mimpure-text linker flag must be +dnl provided when building libtool shared libraries. +dnl Result stored in xc_lt_shlib_use_mimpure_text. + +m4_define([_XC_CHECK_LT_SHLIB_USE_MIMPURE_TEXT], +[dnl +# +# Verify if libtool shared libraries should be linked using flag -mimpure-text +# + +AC_MSG_CHECKING([whether to build shared libraries with -mimpure-text]) +xc_lt_shlib_use_mimpure_text='no' +case $host_os in @%:@ ( + solaris2*) + if test "x$GCC" = 'xyes'; then + xc_lt_shlib_use_mimpure_text='yes' + fi + ;; +esac +AC_MSG_RESULT([$xc_lt_shlib_use_mimpure_text]) +dnl +m4_define([$0], [])[]dnl +]) + + +dnl _XC_CHECK_LT_BUILD_WITH_PIC +dnl ------------------------------------------------- +dnl Private macro. +dnl +dnl Checks wether libtool shared and static libraries +dnl would be built with PIC depending on user input, +dnl default behavior and knowledge that libtool has +dnl about host characteristics. +dnl Results stored in following shell variables: +dnl xc_lt_build_shared_with_pic +dnl xc_lt_build_static_with_pic + +m4_define([_XC_CHECK_LT_BUILD_WITH_PIC], +[dnl +# +# Find out wether libtool libraries would be built wit PIC +# + +case "x$pic_mode" in @%:@ (((( + xdefault) + xc_lt_build_shared_with_pic='yes' + xc_lt_build_static_with_pic='no' + ;; + xyes) + xc_lt_build_shared_with_pic='yes' + xc_lt_build_static_with_pic='yes' + ;; + xno) + xc_lt_build_shared_with_pic='no' + xc_lt_build_static_with_pic='no' + ;; + *) + xc_lt_build_shared_with_pic='unknown' + xc_lt_build_static_with_pic='unknown' + AC_MSG_WARN([unexpected libtool pic_mode value: $pic_mode]) + ;; +esac +AC_MSG_CHECKING([whether to build shared libraries with PIC]) +AC_MSG_RESULT([$xc_lt_build_shared_with_pic]) +AC_MSG_CHECKING([whether to build static libraries with PIC]) +AC_MSG_RESULT([$xc_lt_build_static_with_pic]) +dnl +m4_define([$0],[])dnl +]) + + +dnl _XC_CHECK_LT_BUILD_SINGLE_VERSION +dnl ------------------------------------------------- +dnl Private macro. +dnl +dnl Checks wether a libtool shared or static library +dnl is finally built exclusively without the other. +dnl Results stored in following shell variables: +dnl xc_lt_build_shared_only +dnl xc_lt_build_static_only + +m4_define([_XC_CHECK_LT_BUILD_SINGLE_VERSION], +[dnl +# +# Verify if libtool shared libraries will be built while static not built +# + +AC_MSG_CHECKING([whether to build shared libraries only]) +if test "$xc_lt_build_shared" = 'yes' && + test "$xc_lt_build_static" = 'no'; then + xc_lt_build_shared_only='yes' +else + xc_lt_build_shared_only='no' +fi +AC_MSG_RESULT([$xc_lt_build_shared_only]) + +# +# Verify if libtool static libraries will be built while shared not built +# + +AC_MSG_CHECKING([whether to build static libraries only]) +if test "$xc_lt_build_static" = 'yes' && + test "$xc_lt_build_shared" = 'no'; then + xc_lt_build_static_only='yes' +else + xc_lt_build_static_only='no' +fi +AC_MSG_RESULT([$xc_lt_build_static_only]) +dnl +m4_define([$0],[])dnl +]) + + +dnl _XC_LIBTOOL_POSTLUDE +dnl ------------------------------------------------- +dnl Private macro. +dnl +dnl Performs several checks related with libtool that +dnl can not be done unless libtool code has already +dnl been executed. See individual check descriptions +dnl for further info. + +m4_define([_XC_LIBTOOL_POSTLUDE], +[dnl +_XC_CHECK_LT_BUILD_LIBRARIES +_XC_CHECK_LT_SHLIB_USE_VERSION_INFO +_XC_CHECK_LT_SHLIB_USE_NO_UNDEFINED +_XC_CHECK_LT_SHLIB_USE_MIMPURE_TEXT +_XC_CHECK_LT_BUILD_WITH_PIC +_XC_CHECK_LT_BUILD_SINGLE_VERSION +dnl +m4_define([$0],[])dnl +]) + + +dnl XC_LIBTOOL +dnl ------------------------------------------------- +dnl Public macro. +dnl +dnl This macro embeds libtool machinery into configure +dnl script, regardless of libtool version, and performs +dnl several additional checks whose results can be used +dnl later on. +dnl +dnl Usage of this macro ensures that generated configure +dnl script uses equivalent logic irrespective of autoconf +dnl or libtool version being used to generate configure +dnl script. +dnl +dnl Results stored in following shell variables: +dnl xc_lt_build_shared +dnl xc_lt_build_static +dnl xc_lt_shlib_use_version_info +dnl xc_lt_shlib_use_no_undefined +dnl xc_lt_shlib_use_mimpure_text +dnl xc_lt_build_shared_with_pic +dnl xc_lt_build_static_with_pic +dnl xc_lt_build_shared_only +dnl xc_lt_build_static_only + +AC_DEFUN([XC_LIBTOOL], +[dnl +AC_PREREQ([2.50])dnl +dnl +AC_BEFORE([$0],[LT_INIT])dnl +AC_BEFORE([$0],[AC_PROG_LIBTOOL])dnl +AC_BEFORE([$0],[AC_LIBTOOL_WIN32_DLL])dnl +dnl +AC_REQUIRE([XC_CHECK_PATH_SEPARATOR])dnl +AC_REQUIRE([AC_CANONICAL_HOST])dnl +AC_REQUIRE([AC_PROG_CC])dnl +dnl +_XC_LIBTOOL_PREAMBLE +_XC_LIBTOOL_BODY +_XC_LIBTOOL_POSTLUDE +dnl +m4_ifdef([AC_LIBTOOL_WIN32_DLL], + [m4_undefine([AC_LIBTOOL_WIN32_DLL])])dnl +m4_ifdef([AC_PROG_LIBTOOL], + [m4_undefine([AC_PROG_LIBTOOL])])dnl +m4_ifdef([LT_INIT], + [m4_undefine([LT_INIT])])dnl +dnl +m4_define([$0],[])dnl +]) + diff --git a/src/c-ares/m4/xc-translit.m4 b/src/c-ares/m4/xc-translit.m4 new file mode 100644 index 000000000..1918f1684 --- /dev/null +++ b/src/c-ares/m4/xc-translit.m4 @@ -0,0 +1,164 @@ +#--------------------------------------------------------------------------- +# +# xc-translit.m4 +# +# Copyright (c) 2011 Daniel Stenberg +# +# Permission to use, copy, modify, and distribute this software for any +# purpose with or without fee is hereby granted, provided that the above +# copyright notice and this permission notice appear in all copies. +# +# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES +# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF +# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR +# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES +# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN +# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF +# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. +# +#--------------------------------------------------------------------------- + +# File version for 'aclocal' use. Keep it a single number. +# serial 2 + + +dnl XC_SH_TR_SH (expression) +dnl ------------------------------------------------- +dnl Shell execution time transliteration of 'expression' +dnl argument, where all non-alfanumeric characters are +dnl converted to the underscore '_' character. +dnl Normal shell expansion and substitution takes place +dnl for given 'expression' at shell execution time before +dnl transliteration is applied to it. + +AC_DEFUN([XC_SH_TR_SH], +[`echo "$1" | sed 's/[[^a-zA-Z0-9_]]/_/g'`]) + + +dnl XC_SH_TR_SH_EX (expression, [extra]) +dnl ------------------------------------------------- +dnl Like XC_SH_TR_SH but transliterating characters +dnl given in 'extra' argument to lowercase 'p'. For +dnl example [*+], [*], and [+] are valid 'extra' args. + +AC_DEFUN([XC_SH_TR_SH_EX], +[ifelse([$2], [], + [XC_SH_TR_SH([$1])], + [`echo "$1" | sed 's/[[$2]]/p/g' | sed 's/[[^a-zA-Z0-9_]]/_/g'`])]) + + +dnl XC_M4_TR_SH (expression) +dnl ------------------------------------------------- +dnl m4 execution time transliteration of 'expression' +dnl argument, where all non-alfanumeric characters are +dnl converted to the underscore '_' character. + +AC_DEFUN([XC_M4_TR_SH], +[patsubst(XC_QPATSUBST(XC_QUOTE($1), + [[^a-zA-Z0-9_]], [_]), + [\(_\(.*\)_\)], [\2])]) + + +dnl XC_M4_TR_SH_EX (expression, [extra]) +dnl ------------------------------------------------- +dnl Like XC_M4_TR_SH but transliterating characters +dnl given in 'extra' argument to lowercase 'p'. For +dnl example [*+], [*], and [+] are valid 'extra' args. + +AC_DEFUN([XC_M4_TR_SH_EX], +[ifelse([$2], [], + [XC_M4_TR_SH([$1])], + [patsubst(XC_QPATSUBST(XC_QPATSUBST(XC_QUOTE($1), + [[$2]], + [p]), + [[^a-zA-Z0-9_]], [_]), + [\(_\(.*\)_\)], [\2])])]) + + +dnl XC_SH_TR_CPP (expression) +dnl ------------------------------------------------- +dnl Shell execution time transliteration of 'expression' +dnl argument, where all non-alfanumeric characters are +dnl converted to the underscore '_' character and alnum +dnl characters are converted to uppercase. +dnl Normal shell expansion and substitution takes place +dnl for given 'expression' at shell execution time before +dnl transliteration is applied to it. + +AC_DEFUN([XC_SH_TR_CPP], +[`echo "$1" | dnl +sed 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/' | dnl +sed 's/[[^A-Z0-9_]]/_/g'`]) + + +dnl XC_SH_TR_CPP_EX (expression, [extra]) +dnl ------------------------------------------------- +dnl Like XC_SH_TR_CPP but transliterating characters +dnl given in 'extra' argument to uppercase 'P'. For +dnl example [*+], [*], and [+] are valid 'extra' args. + +AC_DEFUN([XC_SH_TR_CPP_EX], +[ifelse([$2], [], + [XC_SH_TR_CPP([$1])], + [`echo "$1" | dnl +sed 's/[[$2]]/P/g' | dnl +sed 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/' | dnl +sed 's/[[^A-Z0-9_]]/_/g'`])]) + + +dnl XC_M4_TR_CPP (expression) +dnl ------------------------------------------------- +dnl m4 execution time transliteration of 'expression' +dnl argument, where all non-alfanumeric characters are +dnl converted to the underscore '_' character and alnum +dnl characters are converted to uppercase. + +AC_DEFUN([XC_M4_TR_CPP], +[patsubst(XC_QPATSUBST(XC_QTRANSLIT(XC_QUOTE($1), + [abcdefghijklmnopqrstuvwxyz], + [ABCDEFGHIJKLMNOPQRSTUVWXYZ]), + [[^A-Z0-9_]], [_]), + [\(_\(.*\)_\)], [\2])]) + + +dnl XC_M4_TR_CPP_EX (expression, [extra]) +dnl ------------------------------------------------- +dnl Like XC_M4_TR_CPP but transliterating characters +dnl given in 'extra' argument to uppercase 'P'. For +dnl example [*+], [*], and [+] are valid 'extra' args. + +AC_DEFUN([XC_M4_TR_CPP_EX], +[ifelse([$2], [], + [XC_M4_TR_CPP([$1])], + [patsubst(XC_QPATSUBST(XC_QTRANSLIT(XC_QPATSUBST(XC_QUOTE($1), + [[$2]], + [P]), + [abcdefghijklmnopqrstuvwxyz], + [ABCDEFGHIJKLMNOPQRSTUVWXYZ]), + [[^A-Z0-9_]], [_]), + [\(_\(.*\)_\)], [\2])])]) + + +dnl XC_QUOTE (expression) +dnl ------------------------------------------------- +dnl Expands to quoted result of 'expression' expansion. + +AC_DEFUN([XC_QUOTE], +[[$@]]) + + +dnl XC_QPATSUBST (string, regexp[, repl]) +dnl ------------------------------------------------- +dnl Expands to quoted result of 'patsubst' expansion. + +AC_DEFUN([XC_QPATSUBST], +[XC_QUOTE(patsubst([$1], [$2], [$3]))]) + + +dnl XC_QTRANSLIT (string, chars, repl) +dnl ------------------------------------------------- +dnl Expands to quoted result of 'translit' expansion. + +AC_DEFUN([XC_QTRANSLIT], +[XC_QUOTE(translit([$1], [$2], [$3]))]) + diff --git a/src/c-ares/m4/xc-val-flgs.m4 b/src/c-ares/m4/xc-val-flgs.m4 new file mode 100644 index 000000000..81d1eac9e --- /dev/null +++ b/src/c-ares/m4/xc-val-flgs.m4 @@ -0,0 +1,243 @@ +#--------------------------------------------------------------------------- +# +# xc-val-flgs.m4 +# +# Copyright (c) 2013 Daniel Stenberg +# +# Permission to use, copy, modify, and distribute this software for any +# purpose with or without fee is hereby granted, provided that the above +# copyright notice and this permission notice appear in all copies. +# +# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES +# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF +# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR +# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES +# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN +# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF +# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. +# +#--------------------------------------------------------------------------- + +# serial 1 + + +dnl _XC_CHECK_VAR_LIBS +dnl ------------------------------------------------- +dnl Private macro. + +AC_DEFUN([_XC_CHECK_VAR_LIBS], [ + xc_bad_var_libs=no + for xc_word in $LIBS; do + case "$xc_word" in + -l* | --library=*) + : + ;; + *) + xc_bad_var_libs=yes + ;; + esac + done + if test $xc_bad_var_libs = yes; then + AC_MSG_NOTICE([using LIBS: $LIBS]) + AC_MSG_NOTICE([LIBS error: LIBS may only be used to specify libraries (-lname).]) + fi +]) + + +dnl _XC_CHECK_VAR_LDFLAGS +dnl ------------------------------------------------- +dnl Private macro. + +AC_DEFUN([_XC_CHECK_VAR_LDFLAGS], [ + xc_bad_var_ldflags=no + for xc_word in $LDFLAGS; do + case "$xc_word" in + -D*) + xc_bad_var_ldflags=yes + ;; + -U*) + xc_bad_var_ldflags=yes + ;; + -I*) + xc_bad_var_ldflags=yes + ;; + -l* | --library=*) + xc_bad_var_ldflags=yes + ;; + esac + done + if test $xc_bad_var_ldflags = yes; then + AC_MSG_NOTICE([using LDFLAGS: $LDFLAGS]) + xc_bad_var_msg="LDFLAGS error: LDFLAGS may only be used to specify linker flags, not" + for xc_word in $LDFLAGS; do + case "$xc_word" in + -D*) + AC_MSG_NOTICE([$xc_bad_var_msg macro definitions. Use CPPFLAGS for: $xc_word]) + ;; + -U*) + AC_MSG_NOTICE([$xc_bad_var_msg macro suppressions. Use CPPFLAGS for: $xc_word]) + ;; + -I*) + AC_MSG_NOTICE([$xc_bad_var_msg include directories. Use CPPFLAGS for: $xc_word]) + ;; + -l* | --library=*) + AC_MSG_NOTICE([$xc_bad_var_msg libraries. Use LIBS for: $xc_word]) + ;; + esac + done + fi +]) + + +dnl _XC_CHECK_VAR_CPPFLAGS +dnl ------------------------------------------------- +dnl Private macro. + +AC_DEFUN([_XC_CHECK_VAR_CPPFLAGS], [ + xc_bad_var_cppflags=no + for xc_word in $CPPFLAGS; do + case "$xc_word" in + -rpath*) + xc_bad_var_cppflags=yes + ;; + -L* | --library-path=*) + xc_bad_var_cppflags=yes + ;; + -l* | --library=*) + xc_bad_var_cppflags=yes + ;; + esac + done + if test $xc_bad_var_cppflags = yes; then + AC_MSG_NOTICE([using CPPFLAGS: $CPPFLAGS]) + xc_bad_var_msg="CPPFLAGS error: CPPFLAGS may only be used to specify C preprocessor flags, not" + for xc_word in $CPPFLAGS; do + case "$xc_word" in + -rpath*) + AC_MSG_NOTICE([$xc_bad_var_msg library runtime directories. Use LDFLAGS for: $xc_word]) + ;; + -L* | --library-path=*) + AC_MSG_NOTICE([$xc_bad_var_msg library directories. Use LDFLAGS for: $xc_word]) + ;; + -l* | --library=*) + AC_MSG_NOTICE([$xc_bad_var_msg libraries. Use LIBS for: $xc_word]) + ;; + esac + done + fi +]) + + +dnl _XC_CHECK_VAR_CFLAGS +dnl ------------------------------------------------- +dnl Private macro. + +AC_DEFUN([_XC_CHECK_VAR_CFLAGS], [ + xc_bad_var_cflags=no + for xc_word in $CFLAGS; do + case "$xc_word" in + -D*) + xc_bad_var_cflags=yes + ;; + -U*) + xc_bad_var_cflags=yes + ;; + -I*) + xc_bad_var_cflags=yes + ;; + -rpath*) + xc_bad_var_cflags=yes + ;; + -L* | --library-path=*) + xc_bad_var_cflags=yes + ;; + -l* | --library=*) + xc_bad_var_cflags=yes + ;; + esac + done + if test $xc_bad_var_cflags = yes; then + AC_MSG_NOTICE([using CFLAGS: $CFLAGS]) + xc_bad_var_msg="CFLAGS error: CFLAGS may only be used to specify C compiler flags, not" + for xc_word in $CFLAGS; do + case "$xc_word" in + -D*) + AC_MSG_NOTICE([$xc_bad_var_msg macro definitions. Use CPPFLAGS for: $xc_word]) + ;; + -U*) + AC_MSG_NOTICE([$xc_bad_var_msg macro suppressions. Use CPPFLAGS for: $xc_word]) + ;; + -I*) + AC_MSG_NOTICE([$xc_bad_var_msg include directories. Use CPPFLAGS for: $xc_word]) + ;; + -rpath*) + AC_MSG_NOTICE([$xc_bad_var_msg library runtime directories. Use LDFLAGS for: $xc_word]) + ;; + -L* | --library-path=*) + AC_MSG_NOTICE([$xc_bad_var_msg library directories. Use LDFLAGS for: $xc_word]) + ;; + -l* | --library=*) + AC_MSG_NOTICE([$xc_bad_var_msg libraries. Use LIBS for: $xc_word]) + ;; + esac + done + fi +]) + + +dnl XC_CHECK_USER_FLAGS +dnl ------------------------------------------------- +dnl Public macro. +dnl +dnl Performs some sanity checks for LIBS, LDFLAGS, +dnl CPPFLAGS and CFLAGS values that the user might +dnl have set. When checks fails, user is noticed +dnl about errors detected in all of them and script +dnl execution is halted. +dnl +dnl Intended to be used early in configure script. + +AC_DEFUN([XC_CHECK_USER_FLAGS], [ + AC_PREREQ([2.50])dnl + AC_BEFORE([$0],[XC_CHECK_PROG_CC])dnl + dnl check order below matters + _XC_CHECK_VAR_LIBS + _XC_CHECK_VAR_LDFLAGS + _XC_CHECK_VAR_CPPFLAGS + _XC_CHECK_VAR_CFLAGS + if test $xc_bad_var_libs = yes || + test $xc_bad_var_cflags = yes || + test $xc_bad_var_ldflags = yes || + test $xc_bad_var_cppflags = yes; then + AC_MSG_ERROR([Can not continue. Fix errors mentioned immediately above this line.]) + fi +]) + + +dnl XC_CHECK_BUILD_FLAGS +dnl ------------------------------------------------- +dnl Public macro. +dnl +dnl Performs some sanity checks for LIBS, LDFLAGS, +dnl CPPFLAGS and CFLAGS values that the configure +dnl script might have set. When checks fails, user +dnl is noticed about errors detected in all of them +dnl but script continues execution. +dnl +dnl Intended to be used very late in configure script. + +AC_DEFUN([XC_CHECK_BUILD_FLAGS], [ + AC_PREREQ([2.50])dnl + dnl check order below matters + _XC_CHECK_VAR_LIBS + _XC_CHECK_VAR_LDFLAGS + _XC_CHECK_VAR_CPPFLAGS + _XC_CHECK_VAR_CFLAGS + if test $xc_bad_var_libs = yes || + test $xc_bad_var_cflags = yes || + test $xc_bad_var_ldflags = yes || + test $xc_bad_var_cppflags = yes; then + AC_MSG_WARN([Continuing even with errors mentioned immediately above this line.]) + fi +]) + diff --git a/src/c-ares/m4/zz40-xc-ovr.m4 b/src/c-ares/m4/zz40-xc-ovr.m4 new file mode 100644 index 000000000..0e3b1cba6 --- /dev/null +++ b/src/c-ares/m4/zz40-xc-ovr.m4 @@ -0,0 +1,668 @@ +#--------------------------------------------------------------------------- +# +# zz40-xc-ovr.m4 +# +# Copyright (c) 2013 Daniel Stenberg +# +# Permission to use, copy, modify, and distribute this software for any +# purpose with or without fee is hereby granted, provided that the above +# copyright notice and this permission notice appear in all copies. +# +# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES +# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF +# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR +# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES +# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN +# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF +# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. +# +#--------------------------------------------------------------------------- + +# serial 1 + + +dnl The funny name of this file is intentional in order to make it +dnl sort alphabetically after any libtool, autoconf or automake +dnl provided .m4 macro file that might get copied into this same +dnl subdirectory. This allows that macro (re)definitions from this +dnl file may override those provided in other files. + + +dnl Version macros +dnl ------------------------------------------------- +dnl Public macros. + +m4_define([XC_CONFIGURE_PREAMBLE_VER_MAJOR],[1])dnl +m4_define([XC_CONFIGURE_PREAMBLE_VER_MINOR],[0])dnl + + +dnl _XC_CFG_PRE_PREAMBLE +dnl ------------------------------------------------- +dnl Private macro. + +AC_DEFUN([_XC_CFG_PRE_PREAMBLE], +[ +## -------------------------------- ## +@%:@@%:@ [XC_CONFIGURE_PREAMBLE] ver: []dnl +XC_CONFIGURE_PREAMBLE_VER_MAJOR.[]dnl +XC_CONFIGURE_PREAMBLE_VER_MINOR ## +## -------------------------------- ## + +xc_configure_preamble_ver_major='XC_CONFIGURE_PREAMBLE_VER_MAJOR' +xc_configure_preamble_ver_minor='XC_CONFIGURE_PREAMBLE_VER_MINOR' + +# +# Set IFS to space, tab and newline. +# + +xc_space=' ' +xc_tab=' ' +xc_newline=' +' +IFS="$xc_space$xc_tab$xc_newline" + +# +# Set internationalization behavior variables. +# + +LANG='C' +LC_ALL='C' +LANGUAGE='C' +export LANG +export LC_ALL +export LANGUAGE + +# +# Some useful variables. +# + +xc_msg_warn='configure: WARNING:' +xc_msg_abrt='Can not continue.' +xc_msg_err='configure: error:' +]) + + +dnl _XC_CFG_PRE_BASIC_CHK_CMD_ECHO +dnl ------------------------------------------------- +dnl Private macro. +dnl +dnl Emits shell code that verifies that 'echo' command +dnl is available, otherwise aborts execution. + +AC_DEFUN([_XC_CFG_PRE_BASIC_CHK_CMD_ECHO], +[dnl +AC_REQUIRE([_XC_CFG_PRE_PREAMBLE])dnl +# +# Verify that 'echo' command is available, otherwise abort. +# + +xc_tst_str='unknown' +(`echo "$xc_tst_str" >/dev/null 2>&1`) && xc_tst_str='success' +case "x$xc_tst_str" in @%:@ (( + xsuccess) + : + ;; + *) + # Try built-in echo, and fail. + echo "$xc_msg_err 'echo' command not found. $xc_msg_abrt" >&2 + exit 1 + ;; +esac +]) + + +dnl _XC_CFG_PRE_BASIC_CHK_CMD_TEST +dnl ------------------------------------------------- +dnl Private macro. +dnl +dnl Emits shell code that verifies that 'test' command +dnl is available, otherwise aborts execution. + +AC_DEFUN([_XC_CFG_PRE_BASIC_CHK_CMD_TEST], +[dnl +AC_REQUIRE([_XC_CFG_PRE_BASIC_CHK_CMD_ECHO])dnl +# +# Verify that 'test' command is available, otherwise abort. +# + +xc_tst_str='unknown' +(`test -n "$xc_tst_str" >/dev/null 2>&1`) && xc_tst_str='success' +case "x$xc_tst_str" in @%:@ (( + xsuccess) + : + ;; + *) + echo "$xc_msg_err 'test' command not found. $xc_msg_abrt" >&2 + exit 1 + ;; +esac +]) + + +dnl _XC_CFG_PRE_BASIC_CHK_VAR_PATH +dnl ------------------------------------------------- +dnl Private macro. +dnl +dnl Emits shell code that verifies that 'PATH' variable +dnl is set, otherwise aborts execution. + +AC_DEFUN([_XC_CFG_PRE_BASIC_CHK_VAR_PATH], +[dnl +AC_REQUIRE([_XC_CFG_PRE_BASIC_CHK_CMD_TEST])dnl +# +# Verify that 'PATH' variable is set, otherwise abort. +# + +xc_tst_str='unknown' +(`test -n "$PATH" >/dev/null 2>&1`) && xc_tst_str='success' +case "x$xc_tst_str" in @%:@ (( + xsuccess) + : + ;; + *) + echo "$xc_msg_err 'PATH' variable not set. $xc_msg_abrt" >&2 + exit 1 + ;; +esac +]) + + +dnl _XC_CFG_PRE_BASIC_CHK_CMD_EXPR +dnl ------------------------------------------------- +dnl Private macro. +dnl +dnl Emits shell code that verifies that 'expr' command +dnl is available, otherwise aborts execution. + +AC_DEFUN([_XC_CFG_PRE_BASIC_CHK_CMD_EXPR], +[dnl +AC_REQUIRE([_XC_CFG_PRE_BASIC_CHK_VAR_PATH])dnl +# +# Verify that 'expr' command is available, otherwise abort. +# + +xc_tst_str='unknown' +xc_tst_str=`expr "$xc_tst_str" : '.*' 2>/dev/null` +case "x$xc_tst_str" in @%:@ (( + x7) + : + ;; + *) + echo "$xc_msg_err 'expr' command not found. $xc_msg_abrt" >&2 + exit 1 + ;; +esac +]) + + +dnl _XC_CFG_PRE_BASIC_CHK_UTIL_SED +dnl ------------------------------------------------- +dnl Private macro. +dnl +dnl Emits shell code that verifies that 'sed' utility +dnl is found within 'PATH', otherwise aborts execution. +dnl +dnl This 'sed' is required in order to allow configure +dnl script bootstrapping itself. No fancy testing for a +dnl proper 'sed' this early, that should be done later. + +AC_DEFUN([_XC_CFG_PRE_BASIC_CHK_UTIL_SED], +[dnl +AC_REQUIRE([_XC_CFG_PRE_BASIC_CHK_VAR_PATH])dnl +# +# Verify that 'sed' utility is found within 'PATH', otherwise abort. +# + +xc_tst_str='unknown' +xc_tst_str=`echo "$xc_tst_str" 2>/dev/null \ + | sed -e 's:unknown:success:' 2>/dev/null` +case "x$xc_tst_str" in @%:@ (( + xsuccess) + : + ;; + *) + echo "$xc_msg_err 'sed' utility not found in 'PATH'. $xc_msg_abrt" >&2 + exit 1 + ;; +esac +]) + + +dnl _XC_CFG_PRE_BASIC_CHK_UTIL_GREP +dnl ------------------------------------------------- +dnl Private macro. +dnl +dnl Emits shell code that verifies that 'grep' utility +dnl is found within 'PATH', otherwise aborts execution. +dnl +dnl This 'grep' is required in order to allow configure +dnl script bootstrapping itself. No fancy testing for a +dnl proper 'grep' this early, that should be done later. + +AC_DEFUN([_XC_CFG_PRE_BASIC_CHK_UTIL_GREP], +[dnl +AC_REQUIRE([_XC_CFG_PRE_BASIC_CHK_VAR_PATH])dnl +# +# Verify that 'grep' utility is found within 'PATH', otherwise abort. +# + +xc_tst_str='unknown' +(`echo "$xc_tst_str" 2>/dev/null \ + | grep 'unknown' >/dev/null 2>&1`) && xc_tst_str='success' +case "x$xc_tst_str" in @%:@ (( + xsuccess) + : + ;; + *) + echo "$xc_msg_err 'grep' utility not found in 'PATH'. $xc_msg_abrt" >&2 + exit 1 + ;; +esac +]) + + +dnl _XC_CFG_PRE_BASIC_CHK_UTIL_TR +dnl ------------------------------------------------- +dnl Private macro. +dnl +dnl Emits shell code that verifies that 'tr' utility +dnl is found within 'PATH', otherwise aborts execution. + +AC_DEFUN([_XC_CFG_PRE_BASIC_CHK_UTIL_TR], +[dnl +AC_REQUIRE([_XC_CFG_PRE_BASIC_CHK_VAR_PATH])dnl +# +# Verify that 'tr' utility is found within 'PATH', otherwise abort. +# + +xc_tst_str="${xc_tab}98s7u6c5c4e3s2s10" +xc_tst_str=`echo "$xc_tst_str" 2>/dev/null \ + | tr -d "0123456789$xc_tab" 2>/dev/null` +case "x$xc_tst_str" in @%:@ (( + xsuccess) + : + ;; + *) + echo "$xc_msg_err 'tr' utility not found in 'PATH'. $xc_msg_abrt" >&2 + exit 1 + ;; +esac +]) + + +dnl _XC_CFG_PRE_BASIC_CHK_UTIL_WC +dnl ------------------------------------------------- +dnl Private macro. +dnl +dnl Emits shell code that verifies that 'wc' utility +dnl is found within 'PATH', otherwise aborts execution. + +AC_DEFUN([_XC_CFG_PRE_BASIC_CHK_UTIL_WC], +[dnl +AC_REQUIRE([_XC_CFG_PRE_BASIC_CHK_UTIL_TR])dnl +# +# Verify that 'wc' utility is found within 'PATH', otherwise abort. +# + +xc_tst_str='unknown unknown unknown unknown' +xc_tst_str=`echo "$xc_tst_str" 2>/dev/null \ + | wc -w 2>/dev/null | tr -d "$xc_space$xc_tab" 2>/dev/null` +case "x$xc_tst_str" in @%:@ (( + x4) + : + ;; + *) + echo "$xc_msg_err 'wc' utility not found in 'PATH'. $xc_msg_abrt" >&2 + exit 1 + ;; +esac +]) + + +dnl _XC_CFG_PRE_BASIC_CHK_UTIL_CAT +dnl ------------------------------------------------- +dnl Private macro. +dnl +dnl Emits shell code that verifies that 'cat' utility +dnl is found within 'PATH', otherwise aborts execution. + +AC_DEFUN([_XC_CFG_PRE_BASIC_CHK_UTIL_CAT], +[dnl +AC_REQUIRE([_XC_CFG_PRE_BASIC_CHK_UTIL_WC])dnl +# +# Verify that 'cat' utility is found within 'PATH', otherwise abort. +# + +xc_tst_str='unknown' +xc_tst_str=`cat <<_EOT 2>/dev/null \ + | wc -l 2>/dev/null | tr -d "$xc_space$xc_tab" 2>/dev/null +unknown +unknown +unknown +_EOT` +case "x$xc_tst_str" in @%:@ (( + x3) + : + ;; + *) + echo "$xc_msg_err 'cat' utility not found in 'PATH'. $xc_msg_abrt" >&2 + exit 1 + ;; +esac +]) + + +dnl _XC_CFG_PRE_CHECK_PATH_SEPARATOR +dnl ------------------------------------------------- +dnl Private macro. +dnl +dnl Emits shell code that computes the path separator +dnl and stores the result in 'PATH_SEPARATOR', unless +dnl the user has already set it with a non-empty value. +dnl +dnl This path separator is the symbol used to separate +dnl or diferentiate paths inside the 'PATH' environment +dnl variable. +dnl +dnl Non-empty user provided 'PATH_SEPARATOR' always +dnl overrides the auto-detected one. + +AC_DEFUN([_XC_CFG_PRE_CHECK_PATH_SEPARATOR], +[dnl +AC_REQUIRE([_XC_CFG_PRE_BASIC_CHK_CMD_EXPR])dnl +# +# Auto-detect and set 'PATH_SEPARATOR', unless it is already non-empty set. +# + +# Directory count in 'PATH' when using a colon separator. +xc_tst_dirs_col='x' +xc_tst_prev_IFS=$IFS; IFS=':' +for xc_tst_dir in $PATH; do + IFS=$xc_tst_prev_IFS + xc_tst_dirs_col="x$xc_tst_dirs_col" +done +IFS=$xc_tst_prev_IFS +xc_tst_dirs_col=`expr "$xc_tst_dirs_col" : '.*'` + +# Directory count in 'PATH' when using a semicolon separator. +xc_tst_dirs_sem='x' +xc_tst_prev_IFS=$IFS; IFS=';' +for xc_tst_dir in $PATH; do + IFS=$xc_tst_prev_IFS + xc_tst_dirs_sem="x$xc_tst_dirs_sem" +done +IFS=$xc_tst_prev_IFS +xc_tst_dirs_sem=`expr "$xc_tst_dirs_sem" : '.*'` + +if test $xc_tst_dirs_sem -eq $xc_tst_dirs_col; then + # When both counting methods give the same result we do not want to + # chose one over the other, and consider auto-detection not possible. + if test -z "$PATH_SEPARATOR"; then + # Stop dead until user provides 'PATH_SEPARATOR' definition. + echo "$xc_msg_err 'PATH_SEPARATOR' variable not set. $xc_msg_abrt" >&2 + exit 1 + fi +else + # Separator with the greater directory count is the auto-detected one. + if test $xc_tst_dirs_sem -gt $xc_tst_dirs_col; then + xc_tst_auto_separator=';' + else + xc_tst_auto_separator=':' + fi + if test -z "$PATH_SEPARATOR"; then + # Simply use the auto-detected one when not already set. + PATH_SEPARATOR=$xc_tst_auto_separator + elif test "x$PATH_SEPARATOR" != "x$xc_tst_auto_separator"; then + echo "$xc_msg_warn 'PATH_SEPARATOR' does not match auto-detected one." >&2 + fi +fi +xc_PATH_SEPARATOR=$PATH_SEPARATOR +AC_SUBST([PATH_SEPARATOR])dnl +]) + + +dnl _XC_CFG_PRE_POSTLUDE +dnl ------------------------------------------------- +dnl Private macro. + +AC_DEFUN([_XC_CFG_PRE_POSTLUDE], +[dnl +AC_REQUIRE([_XC_CFG_PRE_PREAMBLE])dnl +AC_REQUIRE([_XC_CFG_PRE_BASIC_CHK_CMD_ECHO])dnl +AC_REQUIRE([_XC_CFG_PRE_BASIC_CHK_CMD_TEST])dnl +AC_REQUIRE([_XC_CFG_PRE_BASIC_CHK_VAR_PATH])dnl +AC_REQUIRE([_XC_CFG_PRE_BASIC_CHK_CMD_EXPR])dnl +AC_REQUIRE([_XC_CFG_PRE_BASIC_CHK_UTIL_SED])dnl +AC_REQUIRE([_XC_CFG_PRE_BASIC_CHK_UTIL_GREP])dnl +AC_REQUIRE([_XC_CFG_PRE_BASIC_CHK_UTIL_TR])dnl +AC_REQUIRE([_XC_CFG_PRE_BASIC_CHK_UTIL_WC])dnl +AC_REQUIRE([_XC_CFG_PRE_BASIC_CHK_UTIL_CAT])dnl +AC_REQUIRE([_XC_CFG_PRE_CHECK_PATH_SEPARATOR])dnl +dnl +xc_configure_preamble_result='yes' +]) + + +dnl XC_CONFIGURE_PREAMBLE +dnl ------------------------------------------------- +dnl Public macro. +dnl +dnl This macro emits shell code which does some +dnl very basic checks related with the availability +dnl of some commands and utilities needed to allow +dnl configure script bootstrapping itself when using +dnl these to figure out other settings. Also emits +dnl code that performs PATH_SEPARATOR auto-detection +dnl and sets its value unless it is already set with +dnl a non-empty value. +dnl +dnl These basic checks are intended to be placed and +dnl executed as early as possible in the resulting +dnl configure script, and as such these must be pure +dnl and portable shell code. +dnl +dnl This macro may be used directly, or indirectly +dnl when using other macros that AC_REQUIRE it such +dnl as XC_CHECK_PATH_SEPARATOR. +dnl +dnl Currently the mechanism used to ensure that this +dnl macro expands early enough in generated configure +dnl script is making it override autoconf and libtool +dnl PATH_SEPARATOR check. + +AC_DEFUN([XC_CONFIGURE_PREAMBLE], +[dnl +AC_PREREQ([2.50])dnl +dnl +AC_BEFORE([$0],[_XC_CFG_PRE_PREAMBLE])dnl +AC_BEFORE([$0],[_XC_CFG_PRE_BASIC_CHK_CMD_ECHO])dnl +AC_BEFORE([$0],[_XC_CFG_PRE_BASIC_CHK_CMD_TEST])dnl +AC_BEFORE([$0],[_XC_CFG_PRE_BASIC_CHK_VAR_PATH])dnl +AC_BEFORE([$0],[_XC_CFG_PRE_BASIC_CHK_CMD_EXPR])dnl +AC_BEFORE([$0],[_XC_CFG_PRE_BASIC_CHK_UTIL_SED])dnl +AC_BEFORE([$0],[_XC_CFG_PRE_BASIC_CHK_UTIL_GREP])dnl +AC_BEFORE([$0],[_XC_CFG_PRE_BASIC_CHK_UTIL_TR])dnl +AC_BEFORE([$0],[_XC_CFG_PRE_BASIC_CHK_UTIL_WC])dnl +AC_BEFORE([$0],[_XC_CFG_PRE_BASIC_CHK_UTIL_CAT])dnl +AC_BEFORE([$0],[_XC_CFG_PRE_CHECK_PATH_SEPARATOR])dnl +AC_BEFORE([$0],[_XC_CFG_PRE_POSTLUDE])dnl +dnl +AC_BEFORE([$0],[AC_CHECK_TOOL])dnl +AC_BEFORE([$0],[AC_CHECK_PROG])dnl +AC_BEFORE([$0],[AC_CHECK_TOOLS])dnl +AC_BEFORE([$0],[AC_CHECK_PROGS])dnl +dnl +AC_BEFORE([$0],[AC_PATH_TOOL])dnl +AC_BEFORE([$0],[AC_PATH_PROG])dnl +AC_BEFORE([$0],[AC_PATH_PROGS])dnl +dnl +AC_BEFORE([$0],[AC_PROG_SED])dnl +AC_BEFORE([$0],[AC_PROG_GREP])dnl +AC_BEFORE([$0],[AC_PROG_LN_S])dnl +AC_BEFORE([$0],[AC_PROG_MKDIR_P])dnl +AC_BEFORE([$0],[AC_PROG_INSTALL])dnl +AC_BEFORE([$0],[AC_PROG_MAKE_SET])dnl +AC_BEFORE([$0],[AC_PROG_LIBTOOL])dnl +dnl +AC_BEFORE([$0],[LT_INIT])dnl +AC_BEFORE([$0],[AM_INIT_AUTOMAKE])dnl +AC_BEFORE([$0],[AC_LIBTOOL_WIN32_DLL])dnl +dnl +AC_REQUIRE([_XC_CFG_PRE_PREAMBLE])dnl +AC_REQUIRE([_XC_CFG_PRE_BASIC_CHK_CMD_ECHO])dnl +AC_REQUIRE([_XC_CFG_PRE_BASIC_CHK_CMD_TEST])dnl +AC_REQUIRE([_XC_CFG_PRE_BASIC_CHK_VAR_PATH])dnl +AC_REQUIRE([_XC_CFG_PRE_BASIC_CHK_CMD_EXPR])dnl +AC_REQUIRE([_XC_CFG_PRE_BASIC_CHK_UTIL_SED])dnl +AC_REQUIRE([_XC_CFG_PRE_BASIC_CHK_UTIL_GREP])dnl +AC_REQUIRE([_XC_CFG_PRE_BASIC_CHK_UTIL_TR])dnl +AC_REQUIRE([_XC_CFG_PRE_BASIC_CHK_UTIL_WC])dnl +AC_REQUIRE([_XC_CFG_PRE_BASIC_CHK_UTIL_CAT])dnl +AC_REQUIRE([_XC_CFG_PRE_CHECK_PATH_SEPARATOR])dnl +AC_REQUIRE([_XC_CFG_PRE_POSTLUDE])dnl +dnl +m4_pattern_forbid([^_*XC])dnl +m4_define([$0],[])dnl +]) + + +dnl Override autoconf and libtool PATH_SEPARATOR check +dnl ------------------------------------------------- +dnl Macros overriding. +dnl +dnl This is done to ensure that the same check is +dnl used across different autoconf versions and to +dnl allow expansion of XC_CONFIGURE_PREAMBLE macro +dnl early enough in the generated configure script. + +dnl +dnl Override when using autoconf 2.53 and newer. +dnl + +m4_ifdef([_AS_PATH_SEPARATOR_PREPARE], +[dnl +m4_undefine([_AS_PATH_SEPARATOR_PREPARE])dnl +m4_defun([_AS_PATH_SEPARATOR_PREPARE], +[dnl +AC_REQUIRE([XC_CONFIGURE_PREAMBLE])dnl +m4_define([$0],[])dnl +])dnl +]) + +dnl +dnl Override when using autoconf 2.50 to 2.52 +dnl + +m4_ifdef([_AC_INIT_PREPARE_FS_SEPARATORS], +[dnl +m4_undefine([_AC_INIT_PREPARE_FS_SEPARATORS])dnl +m4_defun([_AC_INIT_PREPARE_FS_SEPARATORS], +[dnl +AC_REQUIRE([XC_CONFIGURE_PREAMBLE])dnl +ac_path_separator=$PATH_SEPARATOR +m4_define([$0],[])dnl +])dnl +]) + +dnl +dnl Override when using libtool 1.4.2 +dnl + +m4_ifdef([_LT_AC_LIBTOOL_SYS_PATH_SEPARATOR], +[dnl +m4_undefine([_LT_AC_LIBTOOL_SYS_PATH_SEPARATOR])dnl +m4_defun([_LT_AC_LIBTOOL_SYS_PATH_SEPARATOR], +[dnl +AC_REQUIRE([XC_CONFIGURE_PREAMBLE])dnl +lt_cv_sys_path_separator=$PATH_SEPARATOR +m4_define([$0],[])dnl +])dnl +]) + + +dnl XC_CHECK_PATH_SEPARATOR +dnl ------------------------------------------------- +dnl Public macro. +dnl +dnl Usage of this macro ensures that generated configure +dnl script uses the same PATH_SEPARATOR check irrespective +dnl of autoconf or libtool version being used to generate +dnl configure script. +dnl +dnl Emits shell code that computes the path separator +dnl and stores the result in 'PATH_SEPARATOR', unless +dnl the user has already set it with a non-empty value. +dnl +dnl This path separator is the symbol used to separate +dnl or diferentiate paths inside the 'PATH' environment +dnl variable. +dnl +dnl Non-empty user provided 'PATH_SEPARATOR' always +dnl overrides the auto-detected one. +dnl +dnl Strictly speaking the check is done in two steps. The +dnl first, which does the actual check, takes place in +dnl XC_CONFIGURE_PREAMBLE macro and happens very early in +dnl generated configure script. The second one shows and +dnl logs the result of the check into config.log at a later +dnl configure stage. Placement of this second stage in +dnl generated configure script will be done where first +dnl direct or indirect usage of this macro happens. + +AC_DEFUN([XC_CHECK_PATH_SEPARATOR], +[dnl +AC_PREREQ([2.50])dnl +dnl +AC_BEFORE([$0],[AC_CHECK_TOOL])dnl +AC_BEFORE([$0],[AC_CHECK_PROG])dnl +AC_BEFORE([$0],[AC_CHECK_TOOLS])dnl +AC_BEFORE([$0],[AC_CHECK_PROGS])dnl +dnl +AC_BEFORE([$0],[AC_PATH_TOOL])dnl +AC_BEFORE([$0],[AC_PATH_PROG])dnl +AC_BEFORE([$0],[AC_PATH_PROGS])dnl +dnl +AC_BEFORE([$0],[AC_PROG_SED])dnl +AC_BEFORE([$0],[AC_PROG_GREP])dnl +AC_BEFORE([$0],[AC_PROG_LN_S])dnl +AC_BEFORE([$0],[AC_PROG_MKDIR_P])dnl +AC_BEFORE([$0],[AC_PROG_INSTALL])dnl +AC_BEFORE([$0],[AC_PROG_MAKE_SET])dnl +AC_BEFORE([$0],[AC_PROG_LIBTOOL])dnl +dnl +AC_BEFORE([$0],[LT_INIT])dnl +AC_BEFORE([$0],[AM_INIT_AUTOMAKE])dnl +AC_BEFORE([$0],[AC_LIBTOOL_WIN32_DLL])dnl +dnl +AC_REQUIRE([XC_CONFIGURE_PREAMBLE])dnl +dnl +# +# Check that 'XC_CONFIGURE_PREAMBLE' has already run. +# + +if test -z "$xc_configure_preamble_result"; then + AC_MSG_ERROR([xc_configure_preamble_result not set (internal problem)]) +fi + +# +# Check that 'PATH_SEPARATOR' has already been set. +# + +if test -z "$xc_PATH_SEPARATOR"; then + AC_MSG_ERROR([xc_PATH_SEPARATOR not set (internal problem)]) +fi +if test -z "$PATH_SEPARATOR"; then + AC_MSG_ERROR([PATH_SEPARATOR not set (internal or config.site problem)]) +fi +AC_MSG_CHECKING([for path separator]) +AC_MSG_RESULT([$PATH_SEPARATOR]) +if test "x$PATH_SEPARATOR" != "x$xc_PATH_SEPARATOR"; then + AC_MSG_CHECKING([for initial path separator]) + AC_MSG_RESULT([$xc_PATH_SEPARATOR]) + AC_MSG_ERROR([path separator mismatch (internal or config.site problem)]) +fi +dnl +m4_pattern_forbid([^_*XC])dnl +m4_define([$0],[])dnl +]) + diff --git a/src/c-ares/m4/zz50-xc-ovr.m4 b/src/c-ares/m4/zz50-xc-ovr.m4 new file mode 100644 index 000000000..7e9ae592e --- /dev/null +++ b/src/c-ares/m4/zz50-xc-ovr.m4 @@ -0,0 +1,60 @@ +#--------------------------------------------------------------------------- +# +# zz50-xc-ovr.m4 +# +# Copyright (c) 2011 Daniel Stenberg +# +# Permission to use, copy, modify, and distribute this software for any +# purpose with or without fee is hereby granted, provided that the above +# copyright notice and this permission notice appear in all copies. +# +# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES +# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF +# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR +# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES +# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN +# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF +# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. +# +#--------------------------------------------------------------------------- + +# serial 1 + + +dnl The funny name of this file is intentional in order to make it +dnl sort alphabetically after any libtool, autoconf or automake +dnl provided .m4 macro file that might get copied into this same +dnl subdirectory. This allows that macro (re)definitions from this +dnl file may override those provided in other files. + + +dnl Override some language related macros +dnl ------------------------------------------------- +dnl This is done to prevent Libtool 1.5.X from doing +dnl unnecesary C++, Fortran and Java tests when only +dnl using C language and reduce resulting configure +dnl script by nearly 300 Kb. + +m4_ifdef([AC_LIBTOOL_LANG_CXX_CONFIG], + [m4_undefine([AC_LIBTOOL_LANG_CXX_CONFIG])]) +m4_define([AC_LIBTOOL_LANG_CXX_CONFIG],[:]) + +m4_ifdef([AC_LIBTOOL_LANG_F77_CONFIG], + [m4_undefine([AC_LIBTOOL_LANG_F77_CONFIG])]) +m4_define([AC_LIBTOOL_LANG_F77_CONFIG],[:]) + +m4_ifdef([AC_LIBTOOL_LANG_GCJ_CONFIG], + [m4_undefine([AC_LIBTOOL_LANG_GCJ_CONFIG])]) +m4_define([AC_LIBTOOL_LANG_GCJ_CONFIG],[:]) + + +dnl XC_OVR_ZZ50 +dnl ------------------------------------------------- +dnl Placing a call to this macro in configure.ac will +dnl make macros in this file visible to other macros +dnl used for same configure script, overriding those +dnl provided elsewhere. + +AC_DEFUN([XC_OVR_ZZ50], + [AC_BEFORE([$0],[AC_PROG_LIBTOOL])]) + diff --git a/src/c-ares/m4/zz60-xc-ovr.m4 b/src/c-ares/m4/zz60-xc-ovr.m4 new file mode 100644 index 000000000..959f11883 --- /dev/null +++ b/src/c-ares/m4/zz60-xc-ovr.m4 @@ -0,0 +1,64 @@ +#--------------------------------------------------------------------------- +# +# zz60-xc-ovr.m4 +# +# Copyright (c) 2013 Daniel Stenberg +# +# Permission to use, copy, modify, and distribute this software for any +# purpose with or without fee is hereby granted, provided that the above +# copyright notice and this permission notice appear in all copies. +# +# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES +# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF +# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR +# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES +# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN +# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF +# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. +# +#--------------------------------------------------------------------------- + +# serial 1 + + +dnl The funny name of this file is intentional in order to make it +dnl sort alphabetically after any libtool, autoconf or automake +dnl provided .m4 macro file that might get copied into this same +dnl subdirectory. This allows that macro (re)definitions from this +dnl file may override those provided in other files. + + +dnl Override an autoconf provided macro +dnl ------------------------------------------------- +dnl This macro overrides the one provided by autoconf +dnl 2.58 or newer, and provides macro definition for +dnl autoconf 2.57 or older which lack it. This allows +dnl using libtool 2.2 or newer, which requires that +dnl this macro is used in configure.ac, with autoconf +dnl 2.57 or older. + +m4_ifdef([AC_CONFIG_MACRO_DIR], +[dnl +m4_undefine([AC_CONFIG_MACRO_DIR])dnl +]) +m4_define([AC_CONFIG_MACRO_DIR],[]) + + +dnl XC_OVR_ZZ60 +dnl ------------------------------------------------- +dnl Placing a call to this macro in configure.ac will +dnl make macros in this file visible to other macros +dnl used for same configure script, overriding those +dnl provided elsewhere. + +AC_DEFUN([XC_OVR_ZZ60], +[dnl +AC_BEFORE([$0],[LT_INIT])dnl +AC_BEFORE([$0],[AM_INIT_AUTOMAKE])dnl +AC_BEFORE([$0],[AC_LIBTOOL_WIN32_DLL])dnl +AC_BEFORE([$0],[AC_PROG_LIBTOOL])dnl +dnl +AC_BEFORE([$0],[AC_CONFIG_MACRO_DIR])dnl +AC_BEFORE([$0],[AC_CONFIG_MACRO_DIRS])dnl +]) + -- cgit v1.2.3