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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-21 11:54:28 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-21 11:54:28 +0000
commite6918187568dbd01842d8d1d2c808ce16a894239 (patch)
tree64f88b554b444a49f656b6c656111a145cbbaa28 /src/c-ares/acinclude.m4
parentInitial commit. (diff)
downloadceph-e6918187568dbd01842d8d1d2c808ce16a894239.tar.xz
ceph-e6918187568dbd01842d8d1d2c808ce16a894239.zip
Adding upstream version 18.2.2.upstream/18.2.2
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/c-ares/acinclude.m4')
-rw-r--r--src/c-ares/acinclude.m41915
1 files changed, 1915 insertions, 0 deletions
diff --git a/src/c-ares/acinclude.m4 b/src/c-ares/acinclude.m4
new file mode 100644
index 000000000..c255198e5
--- /dev/null
+++ b/src/c-ares/acinclude.m4
@@ -0,0 +1,1915 @@
+
+
+dnl CURL_CHECK_DEF (SYMBOL, [INCLUDES], [SILENT])
+dnl -------------------------------------------------
+dnl Use the C preprocessor to find out if the given object-style symbol
+dnl is defined and get its expansion. This macro will not use default
+dnl includes even if no INCLUDES argument is given. This macro will run
+dnl silently when invoked with three arguments. If the expansion would
+dnl result in a set of double-quoted strings the returned expansion will
+dnl actually be a single double-quoted string concatenating all them.
+
+AC_DEFUN([CURL_CHECK_DEF], [
+ AS_VAR_PUSHDEF([ac_HaveDef], [curl_cv_have_def_$1])dnl
+ AS_VAR_PUSHDEF([ac_Def], [curl_cv_def_$1])dnl
+ if test -z "$SED"; then
+ AC_MSG_ERROR([SED not set. Cannot continue without SED being set.])
+ fi
+ if test -z "$GREP"; then
+ AC_MSG_ERROR([GREP not set. Cannot continue without GREP being set.])
+ fi
+ ifelse($3,,[AC_MSG_CHECKING([for preprocessor definition of $1])])
+ tmp_exp=""
+ AC_PREPROC_IFELSE([
+ AC_LANG_SOURCE(
+ifelse($2,,,[$2])[[
+#ifdef $1
+CURL_DEF_TOKEN $1
+#endif
+ ]])
+ ],[
+ tmp_exp=`eval "$ac_cpp conftest.$ac_ext" 2>/dev/null | \
+ "$GREP" CURL_DEF_TOKEN 2>/dev/null | \
+ "$SED" 's/.*CURL_DEF_TOKEN[[ ]][[ ]]*//' 2>/dev/null | \
+ "$SED" 's/[["]][[ ]]*[["]]//g' 2>/dev/null`
+ if test -z "$tmp_exp" || test "$tmp_exp" = "$1"; then
+ tmp_exp=""
+ fi
+ ])
+ if test -z "$tmp_exp"; then
+ AS_VAR_SET(ac_HaveDef, no)
+ ifelse($3,,[AC_MSG_RESULT([no])])
+ else
+ AS_VAR_SET(ac_HaveDef, yes)
+ AS_VAR_SET(ac_Def, $tmp_exp)
+ ifelse($3,,[AC_MSG_RESULT([$tmp_exp])])
+ fi
+ AS_VAR_POPDEF([ac_Def])dnl
+ AS_VAR_POPDEF([ac_HaveDef])dnl
+])
+
+
+dnl CURL_CHECK_DEF_CC (SYMBOL, [INCLUDES], [SILENT])
+dnl -------------------------------------------------
+dnl Use the C compiler to find out only if the given symbol is defined
+dnl or not, this can not find out its expansion. This macro will not use
+dnl default includes even if no INCLUDES argument is given. This macro
+dnl will run silently when invoked with three arguments.
+
+AC_DEFUN([CURL_CHECK_DEF_CC], [
+ AS_VAR_PUSHDEF([ac_HaveDef], [curl_cv_have_def_$1])dnl
+ ifelse($3,,[AC_MSG_CHECKING([for compiler definition of $1])])
+ AC_COMPILE_IFELSE([
+ AC_LANG_SOURCE(
+ifelse($2,,,[$2])[[
+int main (void)
+{
+#ifdef $1
+ return 0;
+#else
+ force compilation error
+#endif
+}
+ ]])
+ ],[
+ tst_symbol_defined="yes"
+ ],[
+ tst_symbol_defined="no"
+ ])
+ if test "$tst_symbol_defined" = "yes"; then
+ AS_VAR_SET(ac_HaveDef, yes)
+ ifelse($3,,[AC_MSG_RESULT([yes])])
+ else
+ AS_VAR_SET(ac_HaveDef, no)
+ ifelse($3,,[AC_MSG_RESULT([no])])
+ fi
+ AS_VAR_POPDEF([ac_HaveDef])dnl
+])
+
+
+dnl CARES_CHECK_LIB_XNET
+dnl -------------------------------------------------
+dnl Verify if X/Open network library is required.
+
+AC_DEFUN([CARES_CHECK_LIB_XNET], [
+ AC_MSG_CHECKING([if X/Open network library is required])
+ tst_lib_xnet_required="no"
+ AC_COMPILE_IFELSE([
+ AC_LANG_SOURCE([[
+int main (void)
+{
+#if defined(__hpux) && defined(_XOPEN_SOURCE) && (_XOPEN_SOURCE >= 600)
+ return 0;
+#elif defined(__hpux) && defined(_XOPEN_SOURCE_EXTENDED)
+ return 0;
+#else
+ force compilation error
+#endif
+}
+ ]])
+ ],[
+ tst_lib_xnet_required="yes"
+ LIBS="$LIBS -lxnet"
+ ])
+ AC_MSG_RESULT([$tst_lib_xnet_required])
+])
+
+
+dnl CARES_CHECK_AIX_ALL_SOURCE
+dnl -------------------------------------------------
+dnl Provides a replacement of traditional AC_AIX with
+dnl an uniform behaviour across all autoconf versions,
+dnl and with our own placement rules.
+
+AC_DEFUN([CARES_CHECK_AIX_ALL_SOURCE], [
+ AH_VERBATIM([_ALL_SOURCE],
+ [/* Define to 1 if OS is AIX. */
+#ifndef _ALL_SOURCE
+# undef _ALL_SOURCE
+#endif])
+ AC_BEFORE([$0], [AC_SYS_LARGEFILE])dnl
+ AC_BEFORE([$0], [CARES_CONFIGURE_REENTRANT])dnl
+ AC_MSG_CHECKING([if OS is AIX (to define _ALL_SOURCE)])
+ AC_EGREP_CPP([yes_this_is_aix],[
+#ifdef _AIX
+ yes_this_is_aix
+#endif
+ ],[
+ AC_MSG_RESULT([yes])
+ AC_DEFINE(_ALL_SOURCE)
+ ],[
+ AC_MSG_RESULT([no])
+ ])
+])
+
+
+dnl CURL_CHECK_HEADER_WINDOWS
+dnl -------------------------------------------------
+dnl Check for compilable and valid windows.h header
+
+AC_DEFUN([CURL_CHECK_HEADER_WINDOWS], [
+ AC_CACHE_CHECK([for windows.h], [ac_cv_header_windows_h], [
+ AC_COMPILE_IFELSE([
+ AC_LANG_PROGRAM([[
+#undef inline
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include <windows.h>
+ ]],[[
+#if defined(__CYGWIN__) || defined(__CEGCC__)
+ HAVE_WINDOWS_H shall not be defined.
+#else
+ int dummy=2*WINVER;
+#endif
+ ]])
+ ],[
+ ac_cv_header_windows_h="yes"
+ ],[
+ ac_cv_header_windows_h="no"
+ ])
+ ])
+ case "$ac_cv_header_windows_h" in
+ yes)
+ AC_DEFINE_UNQUOTED(HAVE_WINDOWS_H, 1,
+ [Define to 1 if you have the windows.h header file.])
+ AC_DEFINE_UNQUOTED(WIN32_LEAN_AND_MEAN, 1,
+ [Define to avoid automatic inclusion of winsock.h])
+ ;;
+ esac
+])
+
+
+dnl CURL_CHECK_NATIVE_WINDOWS
+dnl -------------------------------------------------
+dnl Check if building a native Windows target
+
+AC_DEFUN([CURL_CHECK_NATIVE_WINDOWS], [
+ AC_REQUIRE([CURL_CHECK_HEADER_WINDOWS])dnl
+ AC_CACHE_CHECK([whether build target is a native Windows one], [ac_cv_native_windows], [
+ if test "$ac_cv_header_windows_h" = "no"; then
+ ac_cv_native_windows="no"
+ else
+ AC_COMPILE_IFELSE([
+ AC_LANG_PROGRAM([[
+ ]],[[
+#if defined(__MINGW32__) || defined(__MINGW32CE__) || \
+ (defined(_MSC_VER) && (defined(_WIN32) || defined(_WIN64)))
+ int dummy=1;
+#else
+ Not a native Windows build target.
+#endif
+ ]])
+ ],[
+ ac_cv_native_windows="yes"
+ ],[
+ ac_cv_native_windows="no"
+ ])
+ fi
+ ])
+ AM_CONDITIONAL(DOING_NATIVE_WINDOWS, test "x$ac_cv_native_windows" = xyes)
+])
+
+
+dnl CURL_CHECK_HEADER_WINSOCK
+dnl -------------------------------------------------
+dnl Check for compilable and valid winsock.h header
+
+AC_DEFUN([CURL_CHECK_HEADER_WINSOCK], [
+ AC_REQUIRE([CURL_CHECK_HEADER_WINDOWS])dnl
+ AC_CACHE_CHECK([for winsock.h], [ac_cv_header_winsock_h], [
+ AC_COMPILE_IFELSE([
+ AC_LANG_PROGRAM([[
+#undef inline
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include <windows.h>
+#include <winsock.h>
+ ]],[[
+#if defined(__CYGWIN__) || defined(__CEGCC__)
+ HAVE_WINSOCK_H shall not be defined.
+#else
+ int dummy=WSACleanup();
+#endif
+ ]])
+ ],[
+ ac_cv_header_winsock_h="yes"
+ ],[
+ ac_cv_header_winsock_h="no"
+ ])
+ ])
+ case "$ac_cv_header_winsock_h" in
+ yes)
+ AC_DEFINE_UNQUOTED(HAVE_WINSOCK_H, 1,
+ [Define to 1 if you have the winsock.h header file.])
+ ;;
+ esac
+])
+
+
+dnl CURL_CHECK_HEADER_WINSOCK2
+dnl -------------------------------------------------
+dnl Check for compilable and valid winsock2.h header
+
+AC_DEFUN([CURL_CHECK_HEADER_WINSOCK2], [
+ AC_REQUIRE([CURL_CHECK_HEADER_WINDOWS])dnl
+ AC_CACHE_CHECK([for winsock2.h], [ac_cv_header_winsock2_h], [
+ AC_COMPILE_IFELSE([
+ AC_LANG_PROGRAM([[
+#undef inline
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include <windows.h>
+#include <winsock2.h>
+ ]],[[
+#if defined(__CYGWIN__) || defined(__CEGCC__) || defined(__MINGW32CE__)
+ HAVE_WINSOCK2_H shall not be defined.
+#else
+ int dummy=2*IPPROTO_ESP;
+#endif
+ ]])
+ ],[
+ ac_cv_header_winsock2_h="yes"
+ ],[
+ ac_cv_header_winsock2_h="no"
+ ])
+ ])
+ case "$ac_cv_header_winsock2_h" in
+ yes)
+ AC_DEFINE_UNQUOTED(HAVE_WINSOCK2_H, 1,
+ [Define to 1 if you have the winsock2.h header file.])
+ ;;
+ esac
+])
+
+
+dnl CURL_CHECK_HEADER_WS2TCPIP
+dnl -------------------------------------------------
+dnl Check for compilable and valid ws2tcpip.h header
+
+AC_DEFUN([CURL_CHECK_HEADER_WS2TCPIP], [
+ AC_REQUIRE([CURL_CHECK_HEADER_WINSOCK2])dnl
+ AC_CACHE_CHECK([for ws2tcpip.h], [ac_cv_header_ws2tcpip_h], [
+ AC_COMPILE_IFELSE([
+ AC_LANG_PROGRAM([[
+#undef inline
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include <windows.h>
+#include <winsock2.h>
+#include <ws2tcpip.h>
+ ]],[[
+#if defined(__CYGWIN__) || defined(__CEGCC__) || defined(__MINGW32CE__)
+ HAVE_WS2TCPIP_H shall not be defined.
+#else
+ int dummy=2*IP_PKTINFO;
+#endif
+ ]])
+ ],[
+ ac_cv_header_ws2tcpip_h="yes"
+ ],[
+ ac_cv_header_ws2tcpip_h="no"
+ ])
+ ])
+ case "$ac_cv_header_ws2tcpip_h" in
+ yes)
+ AC_DEFINE_UNQUOTED(HAVE_WS2TCPIP_H, 1,
+ [Define to 1 if you have the ws2tcpip.h header file.])
+ ;;
+ esac
+])
+
+
+dnl CURL_CHECK_HEADER_MALLOC
+dnl -------------------------------------------------
+dnl Check for compilable and valid malloc.h header,
+dnl and check if it is needed even with stdlib.h
+
+AC_DEFUN([CURL_CHECK_HEADER_MALLOC], [
+ AC_CACHE_CHECK([for malloc.h], [ac_cv_header_malloc_h], [
+ AC_COMPILE_IFELSE([
+ AC_LANG_PROGRAM([[
+#include <malloc.h>
+ ]],[[
+ void *p = malloc(10);
+ void *q = calloc(10,10);
+ free(p);
+ free(q);
+ ]])
+ ],[
+ ac_cv_header_malloc_h="yes"
+ ],[
+ ac_cv_header_malloc_h="no"
+ ])
+ ])
+ if test "$ac_cv_header_malloc_h" = "yes"; then
+ AC_DEFINE_UNQUOTED(HAVE_MALLOC_H, 1,
+ [Define to 1 if you have the malloc.h header file.])
+ #
+ AC_COMPILE_IFELSE([
+ AC_LANG_PROGRAM([[
+#include <stdlib.h>
+ ]],[[
+ void *p = malloc(10);
+ void *q = calloc(10,10);
+ free(p);
+ free(q);
+ ]])
+ ],[
+ curl_cv_need_header_malloc_h="no"
+ ],[
+ curl_cv_need_header_malloc_h="yes"
+ ])
+ #
+ case "$curl_cv_need_header_malloc_h" in
+ yes)
+ AC_DEFINE_UNQUOTED(NEED_MALLOC_H, 1,
+ [Define to 1 if you need the malloc.h header file even with stdlib.h])
+ ;;
+ esac
+ fi
+])
+
+
+dnl CURL_CHECK_HEADER_MEMORY
+dnl -------------------------------------------------
+dnl Check for compilable and valid memory.h header,
+dnl and check if it is needed even with stdlib.h for
+dnl memory related functions.
+
+AC_DEFUN([CURL_CHECK_HEADER_MEMORY], [
+ AC_CACHE_CHECK([for memory.h], [ac_cv_header_memory_h], [
+ AC_COMPILE_IFELSE([
+ AC_LANG_PROGRAM([[
+#include <memory.h>
+ ]],[[
+ void *p = malloc(10);
+ void *q = calloc(10,10);
+ free(p);
+ free(q);
+ ]])
+ ],[
+ ac_cv_header_memory_h="yes"
+ ],[
+ ac_cv_header_memory_h="no"
+ ])
+ ])
+ if test "$ac_cv_header_memory_h" = "yes"; then
+ AC_DEFINE_UNQUOTED(HAVE_MEMORY_H, 1,
+ [Define to 1 if you have the memory.h header file.])
+ #
+ AC_COMPILE_IFELSE([
+ AC_LANG_PROGRAM([[
+#include <stdlib.h>
+ ]],[[
+ void *p = malloc(10);
+ void *q = calloc(10,10);
+ free(p);
+ free(q);
+ ]])
+ ],[
+ curl_cv_need_header_memory_h="no"
+ ],[
+ curl_cv_need_header_memory_h="yes"
+ ])
+ #
+ case "$curl_cv_need_header_memory_h" in
+ yes)
+ AC_DEFINE_UNQUOTED(NEED_MEMORY_H, 1,
+ [Define to 1 if you need the memory.h header file even with stdlib.h])
+ ;;
+ esac
+ fi
+])
+
+
+dnl CURL_CHECK_FUNC_GETNAMEINFO
+dnl -------------------------------------------------
+dnl Test if the getnameinfo function is available,
+dnl and check the types of five of its arguments.
+dnl If the function succeeds HAVE_GETNAMEINFO will be
+dnl defined, defining the types of the arguments in
+dnl GETNAMEINFO_TYPE_ARG1, GETNAMEINFO_TYPE_ARG2,
+dnl GETNAMEINFO_TYPE_ARG46 and GETNAMEINFO_TYPE_ARG7,
+dnl and also defining the type qualifier of first
+dnl argument in GETNAMEINFO_QUAL_ARG1.
+
+AC_DEFUN([CURL_CHECK_FUNC_GETNAMEINFO], [
+ AC_REQUIRE([CURL_CHECK_HEADER_WS2TCPIP])dnl
+ AC_CHECK_HEADERS(sys/types.h sys/socket.h netdb.h)
+ #
+ AC_MSG_CHECKING([for getnameinfo])
+ AC_LINK_IFELSE([
+ AC_LANG_FUNC_LINK_TRY([getnameinfo])
+ ],[
+ AC_MSG_RESULT([yes])
+ curl_cv_getnameinfo="yes"
+ ],[
+ AC_MSG_RESULT([no])
+ curl_cv_getnameinfo="no"
+ ])
+ #
+ if test "$curl_cv_getnameinfo" != "yes"; then
+ AC_MSG_CHECKING([deeper for getnameinfo])
+ AC_LINK_IFELSE([
+ AC_LANG_PROGRAM([[
+ ]],[[
+ getnameinfo();
+ ]])
+ ],[
+ AC_MSG_RESULT([yes])
+ curl_cv_getnameinfo="yes"
+ ],[
+ AC_MSG_RESULT([but still no])
+ curl_cv_getnameinfo="no"
+ ])
+ fi
+ #
+ if test "$curl_cv_getnameinfo" != "yes"; then
+ AC_MSG_CHECKING([deeper and deeper for getnameinfo])
+ AC_LINK_IFELSE([
+ AC_LANG_PROGRAM([[
+#undef inline
+#ifdef HAVE_WINDOWS_H
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include <windows.h>
+#ifdef HAVE_WINSOCK2_H
+#include <winsock2.h>
+#ifdef HAVE_WS2TCPIP_H
+#include <ws2tcpip.h>
+#endif
+#endif
+#else
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include <sys/socket.h>
+#endif
+#ifdef HAVE_NETDB_H
+#include <netdb.h>
+#endif
+#endif
+ ]],[[
+ getnameinfo(0, 0, 0, 0, 0, 0, 0);
+ ]])
+ ],[
+ AC_MSG_RESULT([yes])
+ curl_cv_getnameinfo="yes"
+ ],[
+ AC_MSG_RESULT([but still no])
+ curl_cv_getnameinfo="no"
+ ])
+ fi
+ #
+ if test "$curl_cv_getnameinfo" = "yes"; then
+ AC_CACHE_CHECK([types of arguments for getnameinfo],
+ [curl_cv_func_getnameinfo_args], [
+ curl_cv_func_getnameinfo_args="unknown"
+ for gni_arg1 in 'struct sockaddr *' 'const struct sockaddr *' 'void *'; do
+ for gni_arg2 in 'socklen_t' 'size_t' 'int'; do
+ for gni_arg46 in 'size_t' 'int' 'socklen_t' 'unsigned int' 'DWORD'; do
+ for gni_arg7 in 'int' 'unsigned int'; do
+ if test "$curl_cv_func_getnameinfo_args" = "unknown"; then
+ AC_COMPILE_IFELSE([
+ AC_LANG_PROGRAM([[
+#undef inline
+#ifdef HAVE_WINDOWS_H
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#if (!defined(_WIN32_WINNT)) || (_WIN32_WINNT < 0x0501)
+#undef _WIN32_WINNT
+#define _WIN32_WINNT 0x0501
+#endif
+#include <windows.h>
+#ifdef HAVE_WINSOCK2_H
+#include <winsock2.h>
+#ifdef HAVE_WS2TCPIP_H
+#include <ws2tcpip.h>
+#endif
+#endif
+#define GNICALLCONV WSAAPI
+#else
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include <sys/socket.h>
+#endif
+#ifdef HAVE_NETDB_H
+#include <netdb.h>
+#endif
+#define GNICALLCONV
+#endif
+ extern int GNICALLCONV getnameinfo($gni_arg1, $gni_arg2,
+ char *, $gni_arg46,
+ char *, $gni_arg46,
+ $gni_arg7);
+ ]],[[
+ $gni_arg2 salen=0;
+ $gni_arg46 hostlen=0;
+ $gni_arg46 servlen=0;
+ $gni_arg7 flags=0;
+ int res = getnameinfo(0, salen, 0, hostlen, 0, servlen, flags);
+ ]])
+ ],[
+ curl_cv_func_getnameinfo_args="$gni_arg1,$gni_arg2,$gni_arg46,$gni_arg7"
+ ])
+ fi
+ done
+ done
+ done
+ done
+ ]) # AC-CACHE-CHECK
+ if test "$curl_cv_func_getnameinfo_args" = "unknown"; then
+ AC_MSG_WARN([Cannot find proper types to use for getnameinfo args])
+ AC_MSG_WARN([HAVE_GETNAMEINFO will not be defined])
+ else
+ gni_prev_IFS=$IFS; IFS=','
+ set dummy `echo "$curl_cv_func_getnameinfo_args" | sed 's/\*/\*/g'`
+ IFS=$gni_prev_IFS
+ shift
+ #
+ gni_qual_type_arg1=$[1]
+ #
+ AC_DEFINE_UNQUOTED(GETNAMEINFO_TYPE_ARG2, $[2],
+ [Define to the type of arg 2 for getnameinfo.])
+ AC_DEFINE_UNQUOTED(GETNAMEINFO_TYPE_ARG46, $[3],
+ [Define to the type of args 4 and 6 for getnameinfo.])
+ AC_DEFINE_UNQUOTED(GETNAMEINFO_TYPE_ARG7, $[4],
+ [Define to the type of arg 7 for getnameinfo.])
+ #
+ prev_sh_opts=$-
+ #
+ case $prev_sh_opts in
+ *f*)
+ ;;
+ *)
+ set -f
+ ;;
+ esac
+ #
+ case "$gni_qual_type_arg1" in
+ const*)
+ gni_qual_arg1=const
+ gni_type_arg1=`echo $gni_qual_type_arg1 | sed 's/^const //'`
+ ;;
+ *)
+ gni_qual_arg1=
+ gni_type_arg1=$gni_qual_type_arg1
+ ;;
+ esac
+ #
+ AC_DEFINE_UNQUOTED(GETNAMEINFO_QUAL_ARG1, $gni_qual_arg1,
+ [Define to the type qualifier of arg 1 for getnameinfo.])
+ AC_DEFINE_UNQUOTED(GETNAMEINFO_TYPE_ARG1, $gni_type_arg1,
+ [Define to the type of arg 1 for getnameinfo.])
+ #
+ case $prev_sh_opts in
+ *f*)
+ ;;
+ *)
+ set +f
+ ;;
+ esac
+ #
+ AC_DEFINE_UNQUOTED(HAVE_GETNAMEINFO, 1,
+ [Define to 1 if you have the getnameinfo function.])
+ ac_cv_func_getnameinfo="yes"
+ fi
+ fi
+])
+
+
+dnl TYPE_SOCKADDR_STORAGE
+dnl -------------------------------------------------
+dnl Check for struct sockaddr_storage. Most IPv6-enabled
+dnl hosts have it, but AIX 4.3 is one known exception.
+
+AC_DEFUN([TYPE_SOCKADDR_STORAGE],
+[
+ AC_CHECK_TYPE([struct sockaddr_storage],
+ AC_DEFINE(HAVE_STRUCT_SOCKADDR_STORAGE, 1,
+ [if struct sockaddr_storage is defined]), ,
+ [
+#undef inline
+#ifdef HAVE_WINDOWS_H
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include <windows.h>
+#ifdef HAVE_WINSOCK2_H
+#include <winsock2.h>
+#endif
+#else
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include <sys/socket.h>
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include <netinet/in.h>
+#endif
+#ifdef HAVE_ARPA_INET_H
+#include <arpa/inet.h>
+#endif
+#endif
+ ])
+])
+
+
+dnl CURL_CHECK_NI_WITHSCOPEID
+dnl -------------------------------------------------
+dnl Check for working NI_WITHSCOPEID in getnameinfo()
+
+AC_DEFUN([CURL_CHECK_NI_WITHSCOPEID], [
+ AC_REQUIRE([CURL_CHECK_FUNC_GETNAMEINFO])dnl
+ AC_REQUIRE([TYPE_SOCKADDR_STORAGE])dnl
+ AC_CHECK_HEADERS(stdio.h sys/types.h sys/socket.h \
+ netdb.h netinet/in.h arpa/inet.h)
+ #
+ AC_CACHE_CHECK([for working NI_WITHSCOPEID],
+ [ac_cv_working_ni_withscopeid], [
+ AC_RUN_IFELSE([
+ AC_LANG_PROGRAM([[
+#ifdef HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
+#ifdef HAVE_STDIO_H
+#include <stdio.h>
+#endif
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include <sys/socket.h>
+#endif
+#ifdef HAVE_NETDB_H
+#include <netdb.h>
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include <netinet/in.h>
+#endif
+#ifdef HAVE_ARPA_INET_H
+#include <arpa/inet.h>
+#endif
+ ]],[[
+#if defined(NI_WITHSCOPEID) && defined(HAVE_GETNAMEINFO)
+#ifdef HAVE_STRUCT_SOCKADDR_STORAGE
+ struct sockaddr_storage sa;
+#else
+ unsigned char sa[256];
+#endif
+ char hostbuf[NI_MAXHOST];
+ int rc;
+ GETNAMEINFO_TYPE_ARG2 salen = (GETNAMEINFO_TYPE_ARG2)sizeof(sa);
+ GETNAMEINFO_TYPE_ARG46 hostlen = (GETNAMEINFO_TYPE_ARG46)sizeof(hostbuf);
+ GETNAMEINFO_TYPE_ARG7 flags = NI_NUMERICHOST | NI_NUMERICSERV | NI_WITHSCOPEID;
+ int fd = socket(AF_INET6, SOCK_STREAM, 0);
+ if(fd < 0) {
+ perror("socket()");
+ return 1; /* Error creating socket */
+ }
+ rc = getsockname(fd, (GETNAMEINFO_TYPE_ARG1)&sa, &salen);
+ if(rc) {
+ perror("getsockname()");
+ return 2; /* Error retrieving socket name */
+ }
+ rc = getnameinfo((GETNAMEINFO_TYPE_ARG1)&sa, salen, hostbuf, hostlen, NULL, 0, flags);
+ if(rc) {
+ printf("rc = %s\n", gai_strerror(rc));
+ return 3; /* Error translating socket address */
+ }
+ return 0; /* Ok, NI_WITHSCOPEID works */
+#else
+ return 4; /* Error, NI_WITHSCOPEID not defined or no getnameinfo() */
+#endif
+ ]]) # AC-LANG-PROGRAM
+ ],[
+ # Exit code == 0. Program worked.
+ ac_cv_working_ni_withscopeid="yes"
+ ],[
+ # Exit code != 0. Program failed.
+ ac_cv_working_ni_withscopeid="no"
+ ],[
+ # Program is not run when cross-compiling. So we assume
+ # NI_WITHSCOPEID will work if we are able to compile it.
+ AC_COMPILE_IFELSE([
+ AC_LANG_PROGRAM([[
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netdb.h>
+ ]],[[
+ unsigned int dummy= NI_NUMERICHOST | NI_NUMERICSERV | NI_WITHSCOPEID;
+ ]])
+ ],[
+ ac_cv_working_ni_withscopeid="yes"
+ ],[
+ ac_cv_working_ni_withscopeid="no"
+ ]) # AC-COMPILE-IFELSE
+ ]) # AC-RUN-IFELSE
+ ]) # AC-CACHE-CHECK
+ case "$ac_cv_working_ni_withscopeid" in
+ yes)
+ AC_DEFINE(HAVE_NI_WITHSCOPEID, 1,
+ [Define to 1 if NI_WITHSCOPEID exists and works.])
+ ;;
+ esac
+])
+
+
+dnl CURL_CHECK_FUNC_RECV
+dnl -------------------------------------------------
+dnl Test if the socket recv() function is available,
+dnl and check its return type and the types of its
+dnl arguments. If the function succeeds HAVE_RECV
+dnl will be defined, defining the types of the arguments
+dnl in RECV_TYPE_ARG1, RECV_TYPE_ARG2, RECV_TYPE_ARG3
+dnl and RECV_TYPE_ARG4, defining the type of the function
+dnl return value in RECV_TYPE_RETV.
+
+AC_DEFUN([CURL_CHECK_FUNC_RECV], [
+ AC_REQUIRE([CURL_CHECK_HEADER_WINSOCK])dnl
+ AC_REQUIRE([CURL_CHECK_HEADER_WINSOCK2])dnl
+ AC_CHECK_HEADERS(sys/types.h sys/socket.h)
+ #
+ AC_MSG_CHECKING([for recv])
+ AC_LINK_IFELSE([
+ AC_LANG_PROGRAM([[
+#undef inline
+#ifdef HAVE_WINDOWS_H
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include <windows.h>
+#ifdef HAVE_WINSOCK2_H
+#include <winsock2.h>
+#else
+#ifdef HAVE_WINSOCK_H
+#include <winsock.h>
+#endif
+#endif
+#else
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include <sys/socket.h>
+#endif
+#endif
+ ]],[[
+ recv(0, 0, 0, 0);
+ ]])
+ ],[
+ AC_MSG_RESULT([yes])
+ curl_cv_recv="yes"
+ ],[
+ AC_MSG_RESULT([no])
+ curl_cv_recv="no"
+ ])
+ #
+ if test "$curl_cv_recv" = "yes"; then
+ AC_CACHE_CHECK([types of args and return type for recv],
+ [curl_cv_func_recv_args], [
+ curl_cv_func_recv_args="unknown"
+ for recv_retv in 'int' 'ssize_t'; do
+ for recv_arg1 in 'int' 'ssize_t' 'SOCKET'; do
+ for recv_arg2 in 'char *' 'void *'; do
+ for recv_arg3 in 'size_t' 'int' 'socklen_t' 'unsigned int'; do
+ for recv_arg4 in 'int' 'unsigned int'; do
+ if test "$curl_cv_func_recv_args" = "unknown"; then
+ AC_COMPILE_IFELSE([
+ AC_LANG_PROGRAM([[
+#undef inline
+#ifdef HAVE_WINDOWS_H
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include <windows.h>
+#ifdef HAVE_WINSOCK2_H
+#include <winsock2.h>
+#else
+#ifdef HAVE_WINSOCK_H
+#include <winsock.h>
+#endif
+#endif
+#define RECVCALLCONV PASCAL
+#else
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include <sys/socket.h>
+#endif
+#define RECVCALLCONV
+#endif
+ extern $recv_retv RECVCALLCONV
+ recv($recv_arg1, $recv_arg2, $recv_arg3, $recv_arg4);
+ ]],[[
+ $recv_arg1 s=0;
+ $recv_arg2 buf=0;
+ $recv_arg3 len=0;
+ $recv_arg4 flags=0;
+ $recv_retv res = recv(s, buf, len, flags);
+ ]])
+ ],[
+ curl_cv_func_recv_args="$recv_arg1,$recv_arg2,$recv_arg3,$recv_arg4,$recv_retv"
+ ])
+ fi
+ done
+ done
+ done
+ done
+ done
+ ]) # AC-CACHE-CHECK
+ if test "$curl_cv_func_recv_args" = "unknown"; then
+ AC_MSG_ERROR([Cannot find proper types to use for recv args])
+ else
+ recv_prev_IFS=$IFS; IFS=','
+ set dummy `echo "$curl_cv_func_recv_args" | sed 's/\*/\*/g'`
+ IFS=$recv_prev_IFS
+ shift
+ #
+ AC_DEFINE_UNQUOTED(RECV_TYPE_ARG1, $[1],
+ [Define to the type of arg 1 for recv.])
+ AC_DEFINE_UNQUOTED(RECV_TYPE_ARG2, $[2],
+ [Define to the type of arg 2 for recv.])
+ AC_DEFINE_UNQUOTED(RECV_TYPE_ARG3, $[3],
+ [Define to the type of arg 3 for recv.])
+ AC_DEFINE_UNQUOTED(RECV_TYPE_ARG4, $[4],
+ [Define to the type of arg 4 for recv.])
+ AC_DEFINE_UNQUOTED(RECV_TYPE_RETV, $[5],
+ [Define to the function return type for recv.])
+ #
+ AC_DEFINE_UNQUOTED(HAVE_RECV, 1,
+ [Define to 1 if you have the recv function.])
+ ac_cv_func_recv="yes"
+ fi
+ else
+ AC_MSG_ERROR([Unable to link function recv])
+ fi
+])
+
+
+dnl CURL_CHECK_FUNC_SEND
+dnl -------------------------------------------------
+dnl Test if the socket send() function is available,
+dnl and check its return type and the types of its
+dnl arguments. If the function succeeds HAVE_SEND
+dnl will be defined, defining the types of the arguments
+dnl in SEND_TYPE_ARG1, SEND_TYPE_ARG2, SEND_TYPE_ARG3
+dnl and SEND_TYPE_ARG4, defining the type of the function
+dnl return value in SEND_TYPE_RETV, and also defining the
+dnl type qualifier of second argument in SEND_QUAL_ARG2.
+
+AC_DEFUN([CURL_CHECK_FUNC_SEND], [
+ AC_REQUIRE([CURL_CHECK_HEADER_WINSOCK])dnl
+ AC_REQUIRE([CURL_CHECK_HEADER_WINSOCK2])dnl
+ AC_CHECK_HEADERS(sys/types.h sys/socket.h)
+ #
+ AC_MSG_CHECKING([for send])
+ AC_LINK_IFELSE([
+ AC_LANG_PROGRAM([[
+#undef inline
+#ifdef HAVE_WINDOWS_H
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include <windows.h>
+#ifdef HAVE_WINSOCK2_H
+#include <winsock2.h>
+#else
+#ifdef HAVE_WINSOCK_H
+#include <winsock.h>
+#endif
+#endif
+#else
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include <sys/socket.h>
+#endif
+#endif
+ ]],[[
+ send(0, 0, 0, 0);
+ ]])
+ ],[
+ AC_MSG_RESULT([yes])
+ curl_cv_send="yes"
+ ],[
+ AC_MSG_RESULT([no])
+ curl_cv_send="no"
+ ])
+ #
+ if test "$curl_cv_send" = "yes"; then
+ AC_CACHE_CHECK([types of args and return type for send],
+ [curl_cv_func_send_args], [
+ curl_cv_func_send_args="unknown"
+ for send_retv in 'int' 'ssize_t'; do
+ for send_arg1 in 'int' 'ssize_t' 'SOCKET'; do
+ for send_arg2 in 'char *' 'void *' 'const char *' 'const void *'; do
+ for send_arg3 in 'size_t' 'int' 'socklen_t' 'unsigned int'; do
+ for send_arg4 in 'int' 'unsigned int'; do
+ if test "$curl_cv_func_send_args" = "unknown"; then
+ AC_COMPILE_IFELSE([
+ AC_LANG_PROGRAM([[
+#undef inline
+#ifdef HAVE_WINDOWS_H
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include <windows.h>
+#ifdef HAVE_WINSOCK2_H
+#include <winsock2.h>
+#else
+#ifdef HAVE_WINSOCK_H
+#include <winsock.h>
+#endif
+#endif
+#define SENDCALLCONV PASCAL
+#else
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include <sys/socket.h>
+#endif
+#define SENDCALLCONV
+#endif
+ extern $send_retv SENDCALLCONV
+ send($send_arg1, $send_arg2, $send_arg3, $send_arg4);
+ ]],[[
+ $send_arg1 s=0;
+ $send_arg3 len=0;
+ $send_arg4 flags=0;
+ $send_retv res = send(s, 0, len, flags);
+ ]])
+ ],[
+ curl_cv_func_send_args="$send_arg1,$send_arg2,$send_arg3,$send_arg4,$send_retv"
+ ])
+ fi
+ done
+ done
+ done
+ done
+ done
+ ]) # AC-CACHE-CHECK
+ if test "$curl_cv_func_send_args" = "unknown"; then
+ AC_MSG_ERROR([Cannot find proper types to use for send args])
+ else
+ send_prev_IFS=$IFS; IFS=','
+ set dummy `echo "$curl_cv_func_send_args" | sed 's/\*/\*/g'`
+ IFS=$send_prev_IFS
+ shift
+ #
+ send_qual_type_arg2=$[2]
+ #
+ AC_DEFINE_UNQUOTED(SEND_TYPE_ARG1, $[1],
+ [Define to the type of arg 1 for send.])
+ AC_DEFINE_UNQUOTED(SEND_TYPE_ARG3, $[3],
+ [Define to the type of arg 3 for send.])
+ AC_DEFINE_UNQUOTED(SEND_TYPE_ARG4, $[4],
+ [Define to the type of arg 4 for send.])
+ AC_DEFINE_UNQUOTED(SEND_TYPE_RETV, $[5],
+ [Define to the function return type for send.])
+ #
+ prev_sh_opts=$-
+ #
+ case $prev_sh_opts in
+ *f*)
+ ;;
+ *)
+ set -f
+ ;;
+ esac
+ #
+ case "$send_qual_type_arg2" in
+ const*)
+ send_qual_arg2=const
+ send_type_arg2=`echo $send_qual_type_arg2 | sed 's/^const //'`
+ ;;
+ *)
+ send_qual_arg2=
+ send_type_arg2=$send_qual_type_arg2
+ ;;
+ esac
+ #
+ AC_DEFINE_UNQUOTED(SEND_QUAL_ARG2, $send_qual_arg2,
+ [Define to the type qualifier of arg 2 for send.])
+ AC_DEFINE_UNQUOTED(SEND_TYPE_ARG2, $send_type_arg2,
+ [Define to the type of arg 2 for send.])
+ #
+ case $prev_sh_opts in
+ *f*)
+ ;;
+ *)
+ set +f
+ ;;
+ esac
+ #
+ AC_DEFINE_UNQUOTED(HAVE_SEND, 1,
+ [Define to 1 if you have the send function.])
+ ac_cv_func_send="yes"
+ fi
+ else
+ AC_MSG_ERROR([Unable to link function send])
+ fi
+])
+
+
+dnl CURL_CHECK_FUNC_RECVFROM
+dnl -------------------------------------------------
+dnl Test if the socket recvfrom() function is available,
+dnl and check its return type and the types of its
+dnl arguments. If the function succeeds HAVE_RECVFROM
+dnl will be defined, defining the types of the arguments
+dnl in RECVFROM_TYPE_ARG1, RECVFROM_TYPE_ARG2, and so on
+dnl to RECVFROM_TYPE_ARG6, defining also the type of the
+dnl function return value in RECVFROM_TYPE_RETV.
+dnl Notice that the types returned for pointer arguments
+dnl will actually be the type pointed by the pointer.
+
+AC_DEFUN([CURL_CHECK_FUNC_RECVFROM], [
+ AC_REQUIRE([CURL_CHECK_HEADER_WINSOCK])dnl
+ AC_REQUIRE([CURL_CHECK_HEADER_WINSOCK2])dnl
+ AC_CHECK_HEADERS(sys/types.h sys/socket.h)
+ #
+ AC_MSG_CHECKING([for recvfrom])
+ AC_LINK_IFELSE([
+ AC_LANG_PROGRAM([[
+#undef inline
+#ifdef HAVE_WINDOWS_H
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include <windows.h>
+#ifdef HAVE_WINSOCK2_H
+#include <winsock2.h>
+#else
+#ifdef HAVE_WINSOCK_H
+#include <winsock.h>
+#endif
+#endif
+#else
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include <sys/socket.h>
+#endif
+#endif
+ ]],[[
+ recvfrom(0, 0, 0, 0, 0, 0);
+ ]])
+ ],[
+ AC_MSG_RESULT([yes])
+ curl_cv_recvfrom="yes"
+ ],[
+ AC_MSG_RESULT([no])
+ curl_cv_recvfrom="no"
+ ])
+ #
+ if test "$curl_cv_recvfrom" = "yes"; then
+ AC_CACHE_CHECK([types of args and return type for recvfrom],
+ [curl_cv_func_recvfrom_args], [
+ curl_cv_func_recvfrom_args="unknown"
+ for recvfrom_retv in 'int' 'ssize_t'; do
+ for recvfrom_arg1 in 'int' 'ssize_t' 'SOCKET'; do
+ for recvfrom_arg2 in 'char *' 'void *'; do
+ for recvfrom_arg3 in 'size_t' 'int' 'socklen_t' 'unsigned int'; do
+ for recvfrom_arg4 in 'int' 'unsigned int'; do
+ for recvfrom_arg5 in 'struct sockaddr *' 'void *' 'const struct sockaddr *'; do
+ for recvfrom_arg6 in 'socklen_t *' 'int *' 'unsigned int *' 'size_t *' 'void *'; do
+ if test "$curl_cv_func_recvfrom_args" = "unknown"; then
+ AC_COMPILE_IFELSE([
+ AC_LANG_PROGRAM([[
+#undef inline
+#ifdef HAVE_WINDOWS_H
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include <windows.h>
+#ifdef HAVE_WINSOCK2_H
+#include <winsock2.h>
+#else
+#ifdef HAVE_WINSOCK_H
+#include <winsock.h>
+#endif
+#endif
+#define RECVFROMCALLCONV PASCAL
+#else
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include <sys/socket.h>
+#endif
+#define RECVFROMCALLCONV
+#endif
+ extern $recvfrom_retv RECVFROMCALLCONV
+ recvfrom($recvfrom_arg1, $recvfrom_arg2,
+ $recvfrom_arg3, $recvfrom_arg4,
+ $recvfrom_arg5, $recvfrom_arg6);
+ ]],[[
+ $recvfrom_arg1 s=0;
+ $recvfrom_arg2 buf=0;
+ $recvfrom_arg3 len=0;
+ $recvfrom_arg4 flags=0;
+ $recvfrom_arg5 addr=0;
+ $recvfrom_arg6 addrlen=0;
+ $recvfrom_retv res=0;
+ res = recvfrom(s, buf, len, flags, addr, addrlen);
+ ]])
+ ],[
+ curl_cv_func_recvfrom_args="$recvfrom_arg1,$recvfrom_arg2,$recvfrom_arg3,$recvfrom_arg4,$recvfrom_arg5,$recvfrom_arg6,$recvfrom_retv"
+ ])
+ fi
+ done
+ done
+ done
+ done
+ done
+ done
+ done
+ ]) # AC-CACHE-CHECK
+ # Nearly last minute change for this release starts here
+ AC_DEFINE_UNQUOTED(HAVE_RECVFROM, 1,
+ [Define to 1 if you have the recvfrom function.])
+ ac_cv_func_recvfrom="yes"
+ # Nearly last minute change for this release ends here
+ if test "$curl_cv_func_recvfrom_args" = "unknown"; then
+ AC_MSG_WARN([Cannot find proper types to use for recvfrom args])
+ else
+ recvfrom_prev_IFS=$IFS; IFS=','
+ set dummy `echo "$curl_cv_func_recvfrom_args" | sed 's/\*/\*/g'`
+ IFS=$recvfrom_prev_IFS
+ shift
+ #
+ recvfrom_ptrt_arg2=$[2]
+ recvfrom_qual_ptrt_arg5=$[5]
+ recvfrom_ptrt_arg6=$[6]
+ #
+ AC_DEFINE_UNQUOTED(RECVFROM_TYPE_ARG1, $[1],
+ [Define to the type of arg 1 for recvfrom.])
+ AC_DEFINE_UNQUOTED(RECVFROM_TYPE_ARG3, $[3],
+ [Define to the type of arg 3 for recvfrom.])
+ AC_DEFINE_UNQUOTED(RECVFROM_TYPE_ARG4, $[4],
+ [Define to the type of arg 4 for recvfrom.])
+ AC_DEFINE_UNQUOTED(RECVFROM_TYPE_RETV, $[7],
+ [Define to the function return type for recvfrom.])
+ #
+ prev_sh_opts=$-
+ #
+ case $prev_sh_opts in
+ *f*)
+ ;;
+ *)
+ set -f
+ ;;
+ esac
+ #
+ case "$recvfrom_qual_ptrt_arg5" in
+ const*)
+ recvfrom_qual_arg5=const
+ recvfrom_ptrt_arg5=`echo $recvfrom_qual_ptrt_arg5 | sed 's/^const //'`
+ ;;
+ *)
+ recvfrom_qual_arg5=
+ recvfrom_ptrt_arg5=$recvfrom_qual_ptrt_arg5
+ ;;
+ esac
+ #
+ recvfrom_type_arg2=`echo $recvfrom_ptrt_arg2 | sed 's/ \*//'`
+ recvfrom_type_arg5=`echo $recvfrom_ptrt_arg5 | sed 's/ \*//'`
+ recvfrom_type_arg6=`echo $recvfrom_ptrt_arg6 | sed 's/ \*//'`
+ #
+ AC_DEFINE_UNQUOTED(RECVFROM_TYPE_ARG2, $recvfrom_type_arg2,
+ [Define to the type pointed by arg 2 for recvfrom.])
+ AC_DEFINE_UNQUOTED(RECVFROM_QUAL_ARG5, $recvfrom_qual_arg5,
+ [Define to the type qualifier pointed by arg 5 for recvfrom.])
+ AC_DEFINE_UNQUOTED(RECVFROM_TYPE_ARG5, $recvfrom_type_arg5,
+ [Define to the type pointed by arg 5 for recvfrom.])
+ AC_DEFINE_UNQUOTED(RECVFROM_TYPE_ARG6, $recvfrom_type_arg6,
+ [Define to the type pointed by arg 6 for recvfrom.])
+ #
+ if test "$recvfrom_type_arg2" = "void"; then
+ AC_DEFINE_UNQUOTED(RECVFROM_TYPE_ARG2_IS_VOID, 1,
+ [Define to 1 if the type pointed by arg 2 for recvfrom is void.])
+ fi
+ if test "$recvfrom_type_arg5" = "void"; then
+ AC_DEFINE_UNQUOTED(RECVFROM_TYPE_ARG5_IS_VOID, 1,
+ [Define to 1 if the type pointed by arg 5 for recvfrom is void.])
+ fi
+ if test "$recvfrom_type_arg6" = "void"; then
+ AC_DEFINE_UNQUOTED(RECVFROM_TYPE_ARG6_IS_VOID, 1,
+ [Define to 1 if the type pointed by arg 6 for recvfrom is void.])
+ fi
+ #
+ case $prev_sh_opts in
+ *f*)
+ ;;
+ *)
+ set +f
+ ;;
+ esac
+ #
+ AC_DEFINE_UNQUOTED(HAVE_RECVFROM, 1,
+ [Define to 1 if you have the recvfrom function.])
+ ac_cv_func_recvfrom="yes"
+ fi
+ else
+ AC_MSG_WARN([Unable to link function recvfrom])
+ AC_MSG_WARN([Your system will be vulnerable to some forms of DNS cache poisoning])
+ fi
+])
+
+
+dnl CURL_CHECK_MSG_NOSIGNAL
+dnl -------------------------------------------------
+dnl Check for MSG_NOSIGNAL
+
+AC_DEFUN([CURL_CHECK_MSG_NOSIGNAL], [
+ AC_CHECK_HEADERS(sys/types.h sys/socket.h)
+ AC_CACHE_CHECK([for MSG_NOSIGNAL], [ac_cv_msg_nosignal], [
+ AC_COMPILE_IFELSE([
+ AC_LANG_PROGRAM([[
+#undef inline
+#ifdef HAVE_WINDOWS_H
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include <windows.h>
+#ifdef HAVE_WINSOCK2_H
+#include <winsock2.h>
+#else
+#ifdef HAVE_WINSOCK_H
+#include <winsock.h>
+#endif
+#endif
+#else
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include <sys/socket.h>
+#endif
+#endif
+ ]],[[
+ int flag=MSG_NOSIGNAL;
+ ]])
+ ],[
+ ac_cv_msg_nosignal="yes"
+ ],[
+ ac_cv_msg_nosignal="no"
+ ])
+ ])
+ case "$ac_cv_msg_nosignal" in
+ yes)
+ AC_DEFINE_UNQUOTED(HAVE_MSG_NOSIGNAL, 1,
+ [Define to 1 if you have the MSG_NOSIGNAL flag.])
+ ;;
+ esac
+])
+
+
+dnl CURL_CHECK_STRUCT_TIMEVAL
+dnl -------------------------------------------------
+dnl Check for timeval struct
+
+AC_DEFUN([CURL_CHECK_STRUCT_TIMEVAL], [
+ AC_REQUIRE([AC_HEADER_TIME])dnl
+ AC_REQUIRE([CURL_CHECK_HEADER_WINSOCK])dnl
+ AC_REQUIRE([CURL_CHECK_HEADER_WINSOCK2])dnl
+ AC_CHECK_HEADERS(sys/types.h sys/time.h time.h sys/socket.h)
+ AC_CACHE_CHECK([for struct timeval], [ac_cv_struct_timeval], [
+ AC_COMPILE_IFELSE([
+ AC_LANG_PROGRAM([[
+#undef inline
+#ifdef HAVE_WINDOWS_H
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include <windows.h>
+#ifdef HAVE_WINSOCK2_H
+#include <winsock2.h>
+#else
+#ifdef HAVE_WINSOCK_H
+#include <winsock.h>
+#endif
+#endif
+#endif
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_SYS_TIME_H
+#include <sys/time.h>
+#ifdef TIME_WITH_SYS_TIME
+#include <time.h>
+#endif
+#else
+#ifdef HAVE_TIME_H
+#include <time.h>
+#endif
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include <sys/socket.h>
+#endif
+ ]],[[
+ struct timeval ts;
+ ts.tv_sec = 0;
+ ts.tv_usec = 0;
+ ]])
+ ],[
+ ac_cv_struct_timeval="yes"
+ ],[
+ ac_cv_struct_timeval="no"
+ ])
+ ])
+ case "$ac_cv_struct_timeval" in
+ yes)
+ AC_DEFINE_UNQUOTED(HAVE_STRUCT_TIMEVAL, 1,
+ [Define to 1 if you have the timeval struct.])
+ ;;
+ esac
+])
+
+
+dnl TYPE_SIG_ATOMIC_T
+dnl -------------------------------------------------
+dnl Check if the sig_atomic_t type is available, and
+dnl verify if it is already defined as volatile.
+
+AC_DEFUN([TYPE_SIG_ATOMIC_T], [
+ AC_CHECK_HEADERS(signal.h)
+ AC_CHECK_TYPE([sig_atomic_t],[
+ AC_DEFINE(HAVE_SIG_ATOMIC_T, 1,
+ [Define to 1 if sig_atomic_t is an available typedef.])
+ ], ,[
+#ifdef HAVE_SIGNAL_H
+#include <signal.h>
+#endif
+ ])
+ case "$ac_cv_type_sig_atomic_t" in
+ yes)
+ #
+ AC_MSG_CHECKING([if sig_atomic_t is already defined as volatile])
+ AC_LINK_IFELSE([
+ AC_LANG_PROGRAM([[
+#ifdef HAVE_SIGNAL_H
+#include <signal.h>
+#endif
+ ]],[[
+ static volatile sig_atomic_t dummy = 0;
+ ]])
+ ],[
+ AC_MSG_RESULT([no])
+ ac_cv_sig_atomic_t_volatile="no"
+ ],[
+ AC_MSG_RESULT([yes])
+ ac_cv_sig_atomic_t_volatile="yes"
+ ])
+ #
+ if test "$ac_cv_sig_atomic_t_volatile" = "yes"; then
+ AC_DEFINE(HAVE_SIG_ATOMIC_T_VOLATILE, 1,
+ [Define to 1 if sig_atomic_t is already defined as volatile.])
+ fi
+ ;;
+ esac
+])
+
+
+dnl TYPE_IN_ADDR_T
+dnl -------------------------------------------------
+dnl Check for in_addr_t: it is used to receive the return code of inet_addr()
+dnl and a few other things.
+
+AC_DEFUN([TYPE_IN_ADDR_T], [
+ AC_CHECK_TYPE([in_addr_t], ,[
+ dnl in_addr_t not available
+ AC_CACHE_CHECK([for in_addr_t equivalent],
+ [curl_cv_in_addr_t_equiv], [
+ curl_cv_in_addr_t_equiv="unknown"
+ for t in "unsigned long" int size_t unsigned long; do
+ if test "$curl_cv_in_addr_t_equiv" = "unknown"; then
+ AC_LINK_IFELSE([
+ AC_LANG_PROGRAM([[
+#undef inline
+#ifdef HAVE_WINDOWS_H
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include <windows.h>
+#ifdef HAVE_WINSOCK2_H
+#include <winsock2.h>
+#else
+#ifdef HAVE_WINSOCK_H
+#include <winsock.h>
+#endif
+#endif
+#else
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include <sys/socket.h>
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include <netinet/in.h>
+#endif
+#ifdef HAVE_ARPA_INET_H
+#include <arpa/inet.h>
+#endif
+#endif
+ ]],[[
+ $t data = inet_addr ("1.2.3.4");
+ ]])
+ ],[
+ curl_cv_in_addr_t_equiv="$t"
+ ])
+ fi
+ done
+ ])
+ case "$curl_cv_in_addr_t_equiv" in
+ unknown)
+ AC_MSG_ERROR([Cannot find a type to use in place of in_addr_t])
+ ;;
+ *)
+ AC_DEFINE_UNQUOTED(in_addr_t, $curl_cv_in_addr_t_equiv,
+ [Type to use in place of in_addr_t when system does not provide it.])
+ ;;
+ esac
+ ],[
+#undef inline
+#ifdef HAVE_WINDOWS_H
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include <windows.h>
+#ifdef HAVE_WINSOCK2_H
+#include <winsock2.h>
+#else
+#ifdef HAVE_WINSOCK_H
+#include <winsock.h>
+#endif
+#endif
+#else
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include <sys/socket.h>
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include <netinet/in.h>
+#endif
+#ifdef HAVE_ARPA_INET_H
+#include <arpa/inet.h>
+#endif
+#endif
+ ])
+])
+
+
+dnl CURL_CHECK_FUNC_CLOCK_GETTIME_MONOTONIC
+dnl -------------------------------------------------
+dnl Check if monotonic clock_gettime is available.
+
+AC_DEFUN([CURL_CHECK_FUNC_CLOCK_GETTIME_MONOTONIC], [
+ AC_REQUIRE([AC_HEADER_TIME])dnl
+ AC_CHECK_HEADERS(sys/types.h sys/time.h time.h)
+ AC_MSG_CHECKING([for monotonic clock_gettime])
+ AC_COMPILE_IFELSE([
+ AC_LANG_PROGRAM([[
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_SYS_TIME_H
+#include <sys/time.h>
+#ifdef TIME_WITH_SYS_TIME
+#include <time.h>
+#endif
+#else
+#ifdef HAVE_TIME_H
+#include <time.h>
+#endif
+#endif
+ ]],[[
+ struct timespec ts;
+ (void)clock_gettime(CLOCK_MONOTONIC, &ts);
+ ]])
+ ],[
+ AC_MSG_RESULT([yes])
+ ac_cv_func_clock_gettime="yes"
+ ],[
+ AC_MSG_RESULT([no])
+ ac_cv_func_clock_gettime="no"
+ ])
+ dnl Definition of HAVE_CLOCK_GETTIME_MONOTONIC is intentionally postponed
+ dnl until library linking and run-time checks for clock_gettime succeed.
+])
+
+
+dnl CURL_CHECK_LIBS_CLOCK_GETTIME_MONOTONIC
+dnl -------------------------------------------------
+dnl If monotonic clock_gettime is available then,
+dnl check and prepended to LIBS any needed libraries.
+
+AC_DEFUN([CURL_CHECK_LIBS_CLOCK_GETTIME_MONOTONIC], [
+ AC_REQUIRE([CURL_CHECK_FUNC_CLOCK_GETTIME_MONOTONIC])dnl
+ #
+ if test "$ac_cv_func_clock_gettime" = "yes"; then
+ #
+ AC_MSG_CHECKING([for clock_gettime in libraries])
+ #
+ curl_cv_save_LIBS="$LIBS"
+ curl_cv_gclk_LIBS="unknown"
+ #
+ for x_xlibs in '' '-lrt' '-lposix4' ; do
+ if test "$curl_cv_gclk_LIBS" = "unknown"; then
+ if test -z "$x_xlibs"; then
+ LIBS="$curl_cv_save_LIBS"
+ else
+ LIBS="$x_xlibs $curl_cv_save_LIBS"
+ fi
+ AC_LINK_IFELSE([
+ AC_LANG_PROGRAM([[
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_SYS_TIME_H
+#include <sys/time.h>
+#ifdef TIME_WITH_SYS_TIME
+#include <time.h>
+#endif
+#else
+#ifdef HAVE_TIME_H
+#include <time.h>
+#endif
+#endif
+ ]],[[
+ struct timespec ts;
+ (void)clock_gettime(CLOCK_MONOTONIC, &ts);
+ ]])
+ ],[
+ curl_cv_gclk_LIBS="$x_xlibs"
+ ])
+ fi
+ done
+ #
+ LIBS="$curl_cv_save_LIBS"
+ #
+ case X-"$curl_cv_gclk_LIBS" in
+ X-unknown)
+ AC_MSG_RESULT([cannot find clock_gettime])
+ AC_MSG_WARN([HAVE_CLOCK_GETTIME_MONOTONIC will not be defined])
+ ac_cv_func_clock_gettime="no"
+ ;;
+ X-)
+ AC_MSG_RESULT([no additional lib required])
+ ac_cv_func_clock_gettime="yes"
+ ;;
+ *)
+ if test -z "$curl_cv_save_LIBS"; then
+ LIBS="$curl_cv_gclk_LIBS"
+ else
+ LIBS="$curl_cv_gclk_LIBS $curl_cv_save_LIBS"
+ fi
+ AC_MSG_RESULT([$curl_cv_gclk_LIBS])
+ ac_cv_func_clock_gettime="yes"
+ ;;
+ esac
+ #
+ dnl only do runtime verification when not cross-compiling
+ if test "x$cross_compiling" != "xyes" &&
+ test "$ac_cv_func_clock_gettime" = "yes"; then
+ AC_MSG_CHECKING([if monotonic clock_gettime works])
+ AC_RUN_IFELSE([
+ AC_LANG_PROGRAM([[
+#ifdef HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_SYS_TIME_H
+#include <sys/time.h>
+#ifdef TIME_WITH_SYS_TIME
+#include <time.h>
+#endif
+#else
+#ifdef HAVE_TIME_H
+#include <time.h>
+#endif
+#endif
+ ]],[[
+ struct timespec ts;
+ if (0 == clock_gettime(CLOCK_MONOTONIC, &ts))
+ exit(0);
+ else
+ exit(1);
+ ]])
+ ],[
+ AC_MSG_RESULT([yes])
+ ],[
+ AC_MSG_RESULT([no])
+ AC_MSG_WARN([HAVE_CLOCK_GETTIME_MONOTONIC will not be defined])
+ ac_cv_func_clock_gettime="no"
+ LIBS="$curl_cv_save_LIBS"
+ ])
+ fi
+ #
+ case "$ac_cv_func_clock_gettime" in
+ yes)
+ AC_DEFINE_UNQUOTED(HAVE_CLOCK_GETTIME_MONOTONIC, 1,
+ [Define to 1 if you have the clock_gettime function and monotonic timer.])
+ ;;
+ esac
+ #
+ fi
+ #
+])
+
+
+dnl CARES_CHECK_LIBS_CONNECT
+dnl -------------------------------------------------
+dnl Verify if network connect function is already available
+dnl using current libraries or if another one is required.
+
+AC_DEFUN([CARES_CHECK_LIBS_CONNECT], [
+ AC_REQUIRE([CARES_INCLUDES_WINSOCK2])dnl
+ AC_MSG_CHECKING([for connect in libraries])
+ tst_connect_save_LIBS="$LIBS"
+ tst_connect_need_LIBS="unknown"
+ for tst_lib in '' '-lsocket' ; do
+ if test "$tst_connect_need_LIBS" = "unknown"; then
+ LIBS="$tst_lib $tst_connect_save_LIBS"
+ AC_LINK_IFELSE([
+ AC_LANG_PROGRAM([[
+ $cares_includes_winsock2
+ #ifndef HAVE_WINDOWS_H
+ int connect(int, void*, int);
+ #endif
+ ]],[[
+ if(0 != connect(0, 0, 0))
+ return 1;
+ ]])
+ ],[
+ tst_connect_need_LIBS="$tst_lib"
+ ])
+ fi
+ done
+ LIBS="$tst_connect_save_LIBS"
+ #
+ case X-"$tst_connect_need_LIBS" in
+ X-unknown)
+ AC_MSG_RESULT([cannot find connect])
+ AC_MSG_ERROR([cannot find connect function in libraries.])
+ ;;
+ X-)
+ AC_MSG_RESULT([yes])
+ ;;
+ *)
+ AC_MSG_RESULT([$tst_connect_need_LIBS])
+ LIBS="$tst_connect_need_LIBS $tst_connect_save_LIBS"
+ ;;
+ esac
+])
+
+
+dnl CARES_DEFINE_UNQUOTED (VARIABLE, [VALUE])
+dnl -------------------------------------------------
+dnl Like AC_DEFINE_UNQUOTED this macro will define a C preprocessor
+dnl symbol that can be further used in custom template configuration
+dnl files. This macro, unlike AC_DEFINE_UNQUOTED, does not use a third
+dnl argument for the description. Symbol definitions done with this
+dnl macro are intended to be exclusively used in handcrafted *.h.in
+dnl template files. Contrary to what AC_DEFINE_UNQUOTED does, this one
+dnl prevents autoheader generation and insertion of symbol template
+dnl stub and definition into the first configuration header file. Do
+dnl not use this macro as a replacement for AC_DEFINE_UNQUOTED, each
+dnl one serves different functional needs.
+
+AC_DEFUN([CARES_DEFINE_UNQUOTED], [
+cat >>confdefs.h <<_EOF
+[@%:@define] $1 ifelse($#, 2, [$2], 1)
+_EOF
+])
+
+dnl CARES_CONFIGURE_ARES_SOCKLEN_T
+dnl -------------------------------------------------
+dnl Find out suitable ares_socklen_t data type definition and size, making
+dnl appropriate definitions for template file ares_build.h.in
+dnl to properly configure and use the library.
+dnl
+dnl The need for the ares_socklen_t definition arises mainly to properly
+dnl interface HP-UX systems which on one hand have a typedef'ed socklen_t
+dnl data type which is 32 or 64-Bit wide depending on the data model being
+dnl used, and that on the other hand is only actually used when interfacing
+dnl the X/Open sockets provided in the xnet library.
+
+AC_DEFUN([CARES_CONFIGURE_ARES_SOCKLEN_T], [
+ AC_REQUIRE([CARES_INCLUDES_WS2TCPIP])dnl
+ AC_REQUIRE([CARES_INCLUDES_SYS_SOCKET])dnl
+ AC_REQUIRE([CARES_PREPROCESS_CALLCONV])dnl
+ #
+ AC_MSG_CHECKING([for ares_socklen_t data type])
+ cares_typeof_ares_socklen_t="unknown"
+ for arg1 in int SOCKET; do
+ for arg2 in 'struct sockaddr' void; do
+ for t in socklen_t int size_t 'unsigned int' long 'unsigned long' void; do
+ if test "$cares_typeof_ares_socklen_t" = "unknown"; then
+ AC_COMPILE_IFELSE([
+ AC_LANG_PROGRAM([[
+ $cares_includes_ws2tcpip
+ $cares_includes_sys_socket
+ $cares_preprocess_callconv
+ extern int FUNCALLCONV getpeername($arg1, $arg2 *, $t *);
+ ]],[[
+ $t *lenptr = 0;
+ if(0 != getpeername(0, 0, lenptr))
+ return 1;
+ ]])
+ ],[
+ cares_typeof_ares_socklen_t="$t"
+ ])
+ fi
+ done
+ done
+ done
+ for t in socklen_t int; do
+ if test "$cares_typeof_ares_socklen_t" = "void"; then
+ AC_COMPILE_IFELSE([
+ AC_LANG_PROGRAM([[
+ $cares_includes_sys_socket
+ typedef $t ares_socklen_t;
+ ]],[[
+ ares_socklen_t dummy;
+ ]])
+ ],[
+ cares_typeof_ares_socklen_t="$t"
+ ])
+ fi
+ done
+ AC_MSG_RESULT([$cares_typeof_ares_socklen_t])
+ if test "$cares_typeof_ares_socklen_t" = "void" ||
+ test "$cares_typeof_ares_socklen_t" = "unknown"; then
+ AC_MSG_ERROR([cannot find data type for ares_socklen_t.])
+ fi
+ #
+ AC_MSG_CHECKING([size of ares_socklen_t])
+ cares_sizeof_ares_socklen_t="unknown"
+ cares_pull_headers_socklen_t="unknown"
+ if test "$ac_cv_header_ws2tcpip_h" = "yes"; then
+ tst_pull_header_checks='none ws2tcpip'
+ tst_size_checks='4'
+ else
+ tst_pull_header_checks='none systypes syssocket'
+ tst_size_checks='4 8 2'
+ fi
+ for tst_size in $tst_size_checks; do
+ for tst_pull_headers in $tst_pull_header_checks; do
+ if test "$cares_sizeof_ares_socklen_t" = "unknown"; then
+ case $tst_pull_headers in
+ ws2tcpip)
+ tmp_includes="$cares_includes_ws2tcpip"
+ ;;
+ systypes)
+ tmp_includes="$cares_includes_sys_types"
+ ;;
+ syssocket)
+ tmp_includes="$cares_includes_sys_socket"
+ ;;
+ *)
+ tmp_includes=""
+ ;;
+ esac
+ AC_COMPILE_IFELSE([
+ AC_LANG_PROGRAM([[
+ $tmp_includes
+ typedef $cares_typeof_ares_socklen_t ares_socklen_t;
+ typedef char dummy_arr[sizeof(ares_socklen_t) == $tst_size ? 1 : -1];
+ ]],[[
+ ares_socklen_t dummy;
+ ]])
+ ],[
+ cares_sizeof_ares_socklen_t="$tst_size"
+ cares_pull_headers_socklen_t="$tst_pull_headers"
+ ])
+ fi
+ done
+ done
+ AC_MSG_RESULT([$cares_sizeof_ares_socklen_t])
+ if test "$cares_sizeof_ares_socklen_t" = "unknown"; then
+ AC_MSG_ERROR([cannot find out size of ares_socklen_t.])
+ fi
+ #
+ case $cares_pull_headers_socklen_t in
+ ws2tcpip)
+ CARES_DEFINE_UNQUOTED([CARES_PULL_WS2TCPIP_H])
+ ;;
+ systypes)
+ CARES_DEFINE_UNQUOTED([CARES_PULL_SYS_TYPES_H])
+ ;;
+ syssocket)
+ CARES_DEFINE_UNQUOTED([CARES_PULL_SYS_TYPES_H])
+ CARES_DEFINE_UNQUOTED([CARES_PULL_SYS_SOCKET_H])
+ ;;
+ esac
+ CARES_DEFINE_UNQUOTED([CARES_TYPEOF_ARES_SOCKLEN_T], [$cares_typeof_ares_socklen_t])
+ CARES_DEFINE_UNQUOTED([CARES_SIZEOF_ARES_SOCKLEN_T], [$cares_sizeof_ares_socklen_t])
+])
+
+
+dnl This macro determines if the specified struct exists in the specified file
+dnl Syntax:
+dnl CARES_CHECK_STRUCT(headers, struct name, if found, [if not found])
+
+AC_DEFUN([CARES_CHECK_STRUCT], [
+ AC_MSG_CHECKING([for struct $2])
+ AC_TRY_COMPILE([$1],
+ [
+ struct $2 struct_instance;
+ ], ac_struct="yes", ac_found="no")
+ if test "$ac_struct" = "yes" ; then
+ AC_MSG_RESULT(yes)
+ $3
+ else
+ AC_MSG_RESULT(no)
+ $4
+ fi
+])
+
+dnl This macro determines if the specified constant exists in the specified file
+dnl Syntax:
+dnl CARES_CHECK_CONSTANT(headers, constant name, if found, [if not found])
+
+AC_DEFUN([CARES_CHECK_CONSTANT], [
+ AC_MSG_CHECKING([for $2])
+ AC_EGREP_CPP(VARIABLEWASDEFINED,
+ [
+ $1
+
+ #ifdef $2
+ VARIABLEWASDEFINED
+ #else
+ NJET
+ #endif
+ ], ac_constant="yes", ac_constant="no"
+ )
+ if test "$ac_constant" = "yes" ; then
+ AC_MSG_RESULT(yes)
+ $3
+ else
+ AC_MSG_RESULT(no)
+ $4
+ fi
+])
+