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Diffstat (limited to '')
| -rw-r--r-- | acinclude.m4 | 351 |
1 files changed, 351 insertions, 0 deletions
diff --git a/acinclude.m4 b/acinclude.m4 new file mode 100644 index 0000000..690dc42 --- /dev/null +++ b/acinclude.m4 @@ -0,0 +1,351 @@ +dnl macros to configure gnupg +dnl Copyright (C) 1998, 1999, 2000, 2001, 2003 Free Software Foundation, Inc. +dnl +dnl This file is part of GnuPG. +dnl +dnl GnuPG is free software; you can redistribute it and/or modify +dnl it under the terms of the GNU General Public License as published by +dnl the Free Software Foundation; either version 3 of the License, or +dnl (at your option) any later version. +dnl +dnl GnuPG is distributed in the hope that it will be useful, +dnl but WITHOUT ANY WARRANTY; without even the implied warranty of +dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +dnl GNU General Public License for more details. +dnl +dnl You should have received a copy of the GNU General Public License +dnl along with this program; if not, see <https://www.gnu.org/licenses/>. + +dnl GNUPG_CHECK_TYPEDEF(TYPE, HAVE_NAME) +dnl Check whether a typedef exists and create a #define $2 if it exists +dnl +AC_DEFUN([GNUPG_CHECK_TYPEDEF], + [ AC_MSG_CHECKING(for $1 typedef) + AC_CACHE_VAL(gnupg_cv_typedef_$1, + [AC_TRY_COMPILE([#define _GNU_SOURCE 1 + #include <stdlib.h> + #include <sys/types.h>], [ + #undef $1 + int a = sizeof($1); + ], gnupg_cv_typedef_$1=yes, gnupg_cv_typedef_$1=no )]) + AC_MSG_RESULT($gnupg_cv_typedef_$1) + if test "$gnupg_cv_typedef_$1" = yes; then + AC_DEFINE($2,1,[Defined if a `]$1[' is typedef'd]) + fi + ]) + + +dnl GNUPG_CHECK_GNUMAKE +dnl +AC_DEFUN([GNUPG_CHECK_GNUMAKE], + [ + if ${MAKE-make} --version 2>/dev/null | grep '^GNU ' >/dev/null 2>&1; then + : + else + AC_MSG_WARN([[ +*** +*** It seems that you are not using GNU make. Some make tools have serious +*** flaws and you may not be able to build this software at all. Before you +*** complain, please try GNU make: GNU make is easy to build and available +*** at all GNU archives. It is always available from ftp.gnu.org:/gnu/make. +***]]) + fi + ]) + +dnl GNUPG_CHECK_FAQPROG +dnl +AC_DEFUN([GNUPG_CHECK_FAQPROG], + [ AC_MSG_CHECKING(for faqprog.pl) + if faqprog.pl -V 2>/dev/null | grep '^faqprog.pl ' >/dev/null 2>&1; then + working_faqprog=yes + FAQPROG="faqprog.pl" + else + working_faqprog=no + FAQPROG=": " + fi + AC_MSG_RESULT($working_faqprog) + AC_SUBST(FAQPROG) + AM_CONDITIONAL(WORKING_FAQPROG, test "$working_faqprog" = "yes" ) + +dnl if test $working_faqprog = no; then +dnl AC_MSG_WARN([[ +dnl *** +dnl *** It seems that the faqprog.pl program is not installed; +dnl *** however it is only needed if you want to change the FAQ. +dnl *** (faqprog.pl should be available at: +dnl *** ftp://ftp.gnupg.org/gcrypt/contrib/faqprog.pl ) +dnl *** No need to worry about this warning. +dnl ***]]) +dnl fi + ]) + +dnl GNUPG_CHECK_DOCBOOK_TO_TEXI +dnl +AC_DEFUN([GNUPG_CHECK_DOCBOOK_TO_TEXI], + [ + AC_CHECK_PROG(DOCBOOK_TO_TEXI, docbook2texi, yes, no) + AC_MSG_CHECKING(for sgml to texi tools) + working_sgmltotexi=no + if test "$ac_cv_prog_DOCBOOK_TO_TEXI" = yes; then + if sgml2xml -v /dev/null 2>&1 | grep 'SP version' >/dev/null 2>&1 ; then + working_sgmltotexi=yes + fi + fi + AC_MSG_RESULT($working_sgmltotexi) + AM_CONDITIONAL(HAVE_DOCBOOK_TO_TEXI, test "$working_sgmltotexi" = "yes" ) + ]) + + + +dnl GNUPG_CHECK_ENDIAN +dnl define either LITTLE_ENDIAN_HOST or BIG_ENDIAN_HOST +dnl +AC_DEFUN([GNUPG_CHECK_ENDIAN], + [ + tmp_assumed_endian=big + tmp_assume_warn="" + if test "$cross_compiling" = yes; then + case "$host_cpu" in + i@<:@345678@:>@* ) + tmp_assumed_endian=little + ;; + *) + ;; + esac + fi + AC_MSG_CHECKING(endianness) + AC_CACHE_VAL(gnupg_cv_c_endian, + [ gnupg_cv_c_endian=unknown + # See if sys/param.h defines the BYTE_ORDER macro. + AC_TRY_COMPILE([#include <sys/types.h> + #include <sys/param.h>], [ + #if !BYTE_ORDER || !BIG_ENDIAN || !LITTLE_ENDIAN + bogus endian macros + #endif], [# It does; now see whether it defined to BIG_ENDIAN or not. + AC_TRY_COMPILE([#include <sys/types.h> + #include <sys/param.h>], [ + #if BYTE_ORDER != BIG_ENDIAN + not big endian + #endif], gnupg_cv_c_endian=big, gnupg_cv_c_endian=little)]) + if test "$gnupg_cv_c_endian" = unknown; then + AC_TRY_RUN([main () { + /* Are we little or big endian? From Harbison&Steele. */ + union + { + long l; + char c[sizeof (long)]; + } u; + u.l = 1; + exit (u.c[sizeof (long) - 1] == 1); + }], + gnupg_cv_c_endian=little, + gnupg_cv_c_endian=big, + gnupg_cv_c_endian=$tmp_assumed_endian + tmp_assumed_warn=" (assumed)" + ) + fi + ]) + AC_MSG_RESULT([${gnupg_cv_c_endian}${tmp_assumed_warn}]) + if test "$gnupg_cv_c_endian" = little; then + AC_DEFINE(LITTLE_ENDIAN_HOST,1, + [Defined if the host has little endian byte ordering]) + else + AC_DEFINE(BIG_ENDIAN_HOST,1, + [Defined if the host has big endian byte ordering]) + fi + ]) + + + + +# GNUPG_BUILD_PROGRAM(NAME,DEFAULT) +# Add a --enable-NAME option to configure an set the +# shell variable build_NAME either to "yes" or "no". DEFAULT must +# either be "yes" or "no" and decided on the default value for +# build_NAME and whether --enable-NAME or --disable-NAME is shown with +# ./configure --help +AC_DEFUN([GNUPG_BUILD_PROGRAM], + [m4_define([my_build], [m4_bpatsubst(build_$1, [[^a-zA-Z0-9_]], [_])]) + my_build=$2 + m4_if([$2],[yes],[ + AC_ARG_ENABLE([$1], AC_HELP_STRING([--disable-$1], + [do not build the $1 program]), + my_build=$enableval, my_build=$2) + ],[ + AC_ARG_ENABLE([$1], AC_HELP_STRING([--enable-$1], + [build the $1 program]), + my_build=$enableval, my_build=$2) + ]) + case "$my_build" in + no|yes) + ;; + *) + AC_MSG_ERROR([only yes or no allowed for feature --enable-$1]) + ;; + esac + m4_undefine([my_build]) + ]) + + + +# GNUPG_DISABLE_GPG_ALGO(NAME,DESCRIPTION) +# +# Add a --disable-gpg-NAME option and the corresponding ac_define +# GPG_USE_<NAME>. +AC_DEFUN([GNUPG_GPG_DISABLE_ALGO], + [AC_MSG_CHECKING([whether to enable the $2 for gpg]) + AC_ARG_ENABLE([gpg-$1], AC_HELP_STRING([--disable-gpg-$1], + [disable the $2 algorithm in gpg]), + , enableval=yes) + AC_MSG_RESULT($enableval) + if test x"$enableval" = xyes ; then + AC_DEFINE(GPG_USE_[]m4_toupper($1), 1, [Define to support the $2]) + fi + ]) + + + + +# Check whether mlock is broken (hpux 10.20 raises a SIGBUS if mlock +# is not called from uid 0 (not tested whether uid 0 works) +# For DECs Tru64 we have also to check whether mlock is in librt +# mlock is there a macro using memlk() +dnl GNUPG_CHECK_MLOCK +dnl +AC_DEFUN([GNUPG_CHECK_MLOCK], + [ AC_CHECK_FUNCS(mlock) + if test "$ac_cv_func_mlock" = "no"; then + AC_CHECK_HEADERS(sys/mman.h) + if test "$ac_cv_header_sys_mman_h" = "yes"; then + # Add librt to LIBS: + AC_CHECK_LIB(rt, memlk) + AC_CACHE_CHECK([whether mlock is in sys/mman.h], + gnupg_cv_mlock_is_in_sys_mman, + [AC_TRY_LINK([ + #include <assert.h> + #ifdef HAVE_SYS_MMAN_H + #include <sys/mman.h> + #endif + ], [ + int i; + + /* glibc defines this for functions which it implements + * to always fail with ENOSYS. Some functions are actually + * named something starting with __ and the normal name + * is an alias. */ + #if defined (__stub_mlock) || defined (__stub___mlock) + choke me + #else + mlock(&i, 4); + #endif + ; return 0; + ], + gnupg_cv_mlock_is_in_sys_mman=yes, + gnupg_cv_mlock_is_in_sys_mman=no)]) + if test "$gnupg_cv_mlock_is_in_sys_mman" = "yes"; then + AC_DEFINE(HAVE_MLOCK,1, + [Defined if the system supports an mlock() call]) + fi + fi + fi + if test "$ac_cv_func_mlock" = "yes"; then + AC_MSG_CHECKING(whether mlock is broken) + AC_CACHE_VAL(gnupg_cv_have_broken_mlock, + AC_TRY_RUN([ + #include <stdlib.h> + #include <unistd.h> + #include <errno.h> + #include <sys/mman.h> + #include <sys/types.h> + #include <fcntl.h> + + int main() + { + char *pool; + int err; + long int pgsize = getpagesize(); + + pool = malloc( 4096 + pgsize ); + if( !pool ) + return 2; + pool += (pgsize - ((long int)pool % pgsize)); + + err = mlock( pool, 4096 ); + if( !err || errno == EPERM ) + return 0; /* okay */ + + return 1; /* hmmm */ + } + + ], + gnupg_cv_have_broken_mlock="no", + gnupg_cv_have_broken_mlock="yes", + gnupg_cv_have_broken_mlock="assume-no" + ) + ) + if test "$gnupg_cv_have_broken_mlock" = "yes"; then + AC_DEFINE(HAVE_BROKEN_MLOCK,1, + [Defined if the mlock() call does not work]) + AC_MSG_RESULT(yes) + AC_CHECK_FUNCS(plock) + else + if test "$gnupg_cv_have_broken_mlock" = "no"; then + AC_MSG_RESULT(no) + else + AC_MSG_RESULT(assuming no) + fi + fi + fi + ]) + + +dnl Stolen from gcc +dnl Define MKDIR_TAKES_ONE_ARG if mkdir accepts only one argument instead +dnl of the usual 2. +AC_DEFUN([GNUPG_FUNC_MKDIR_TAKES_ONE_ARG], +[AC_CHECK_HEADERS(sys/stat.h unistd.h direct.h) +AC_CACHE_CHECK([if mkdir takes one argument], gnupg_cv_mkdir_takes_one_arg, +[AC_TRY_COMPILE([ +#include <sys/types.h> +#ifdef HAVE_SYS_STAT_H +# include <sys/stat.h> +#endif +#ifdef HAVE_UNISTD_H +# include <unistd.h> +#endif +#ifdef HAVE_DIRECT_H +# include <direct.h> +#endif], [mkdir ("foo", 0);], + gnupg_cv_mkdir_takes_one_arg=no, gnupg_cv_mkdir_takes_one_arg=yes)]) +if test $gnupg_cv_mkdir_takes_one_arg = yes ; then + AC_DEFINE(MKDIR_TAKES_ONE_ARG,1, + [Defined if mkdir() does not take permission flags]) +fi +]) + + +# GNUPG_TIME_T_UNSIGNED +# Check whether time_t is unsigned +# +AC_DEFUN([GNUPG_TIME_T_UNSIGNED], + [ AC_CACHE_CHECK(whether time_t is unsigned, gnupg_cv_time_t_unsigned, + [AC_REQUIRE([AC_HEADER_TIME])dnl + AC_COMPILE_IFELSE([AC_LANG_BOOL_COMPILE_TRY( + [AC_INCLUDES_DEFAULT([]) +#if TIME_WITH_SYS_TIME +# include <sys/time.h> +# include <time.h> +#else +# if HAVE_SYS_TIME_H +# include <sys/time.h> +# else +# include <time.h> +# endif +#endif +], + [((time_t)-1) < 0])], + gnupg_cv_time_t_unsigned=no, gnupg_cv_time_t_unsigned=yes)]) + if test $gnupg_cv_time_t_unsigned = yes; then + AC_DEFINE(HAVE_UNSIGNED_TIME_T,1,[Defined if time_t is an unsigned type]) + fi +])# GNUPG_TIME_T_UNSIGNED |