1dnl Copyright (c) 1999, 2000 Sascha Schumann. All rights reserved. 2dnl 3dnl Redistribution and use in source and binary forms, with or without 4dnl modification, are permitted provided that the following conditions 5dnl are met: 6dnl 7dnl 1. Redistributions of source code must retain the above copyright 8dnl notice, this list of conditions and the following disclaimer. 9dnl 10dnl 2. Redistributions in binary form must reproduce the above copyright 11dnl notice, this list of conditions and the following disclaimer in 12dnl the documentation and/or other materials provided with the 13dnl distribution. 14dnl 15dnl THIS SOFTWARE IS PROVIDED BY SASCHA SCHUMANN ``AS IS'' AND ANY 16dnl EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17dnl IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 18dnl PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL SASCHA SCHUMANN OR 19dnl HIS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 20dnl SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21dnl NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 22dnl LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23dnl HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 24dnl STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25dnl ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 26dnl OF THE POSSIBILITY OF SUCH DAMAGE. 27 28dnl 29dnl PTHREADS_FLAGS 30dnl 31dnl Set some magic defines to achieve POSIX threads conformance 32dnl 33AC_DEFUN([PTHREADS_FLAGS],[ 34 if test -z "$host_alias" && test -n "$host"; then 35 host_alias=$host 36 fi 37 if test -z "$host_alias"; then 38 AC_MSG_ERROR(host_alias is not set. Make sure to run config.guess) 39 fi 40 case $host_alias in 41 *solaris*) 42 PTHREAD_FLAGS="-D_POSIX_PTHREAD_SEMANTICS -D_REENTRANT";; 43 *freebsd*) 44 PTHREAD_FLAGS="-D_REENTRANT -D_THREAD_SAFE";; 45 *linux*) 46 PTHREAD_FLAGS=-D_REENTRANT;; 47 *aix*) 48 PTHREAD_FLAGS=-D_THREAD_SAFE;; 49 *irix*) 50 PTHREAD_FLAGS=-D_POSIX_THREAD_SAFE_FUNCTIONS;; 51 *hpux*) 52 PTHREAD_FLAGS=-D_REENTRANT;; 53 *sco*) 54 PTHREAD_FLAGS=-D_REENTRANT;; 55dnl Solves sigwait() problem, creates problems with u_long etc. 56dnl PTHREAD_FLAGS="-D_REENTRANT -D_XOPEN_SOURCE=500 -D_POSIX_C_SOURCE=199506 -D_XOPEN_SOURCE_EXTENDED=1";; 57 esac 58 59 if test -n "$PTHREAD_FLAGS"; then 60 CPPFLAGS="$CPPFLAGS $PTHREAD_FLAGS" 61 fi 62])dnl 63dnl 64dnl PTHREADS_CHECK_COMPILE 65dnl 66dnl Check whether the current setup can use POSIX threads calls 67dnl 68AC_DEFUN([PTHREADS_CHECK_COMPILE], [ 69AC_LINK_IFELSE([ AC_LANG_SOURCE([ 70#include <pthread.h> 71#include <stddef.h> 72 73void *thread_routine(void *data) { 74 return data; 75} 76 77int main() { 78 pthread_t thd; 79 pthread_mutexattr_t mattr; 80 int data = 1; 81 pthread_mutexattr_init(&mattr); 82 return pthread_create(&thd, NULL, thread_routine, &data); 83} ]) ], [ 84 pthreads_checked=yes 85 ], [ 86 pthreads_checked=no 87 ] 88) ] )dnl 89dnl 90dnl PTHREADS_CHECK() 91dnl 92dnl Try to find a way to enable POSIX threads 93dnl 94dnl Magic flags 95dnl -kthread gcc (FreeBSD) 96dnl -Kthread UDK cc (UnixWare) 97dnl -mt WorkShop cc (Solaris) 98dnl -mthreads gcc (AIX) 99dnl -pthread gcc (Linux, FreeBSD, NetBSD, OpenBSD) 100dnl -pthreads gcc (Solaris) 101dnl -qthreaded AIX cc V5 102dnl -threads gcc (HP-UX) 103dnl 104AC_DEFUN([PTHREADS_CHECK],[ 105 106save_CFLAGS=$CFLAGS 107save_LIBS=$LIBS 108PTHREADS_ASSIGN_VARS 109PTHREADS_CHECK_COMPILE 110LIBS=$save_LIBS 111CFLAGS=$save_CFLAGS 112 113AC_CACHE_CHECK(for pthreads_cflags,ac_cv_pthreads_cflags,[ 114ac_cv_pthreads_cflags= 115if test "$pthreads_working" != "yes"; then 116 for flag in -kthread -pthread -pthreads -mthreads -Kthread -threads -mt -qthreaded; do 117 ac_save=$CFLAGS 118 CFLAGS="$CFLAGS $flag" 119 PTHREADS_CHECK_COMPILE 120 CFLAGS=$ac_save 121 if test "$pthreads_checked" = "yes"; then 122 ac_cv_pthreads_cflags=$flag 123 break 124 fi 125 done 126fi 127]) 128 129AC_CACHE_CHECK(for pthreads_lib, ac_cv_pthreads_lib,[ 130ac_cv_pthreads_lib= 131if test "$pthreads_working" != "yes"; then 132 for lib in pthread pthreads c_r; do 133 ac_save=$LIBS 134 LIBS="$LIBS -l$lib" 135 PTHREADS_CHECK_COMPILE 136 LIBS=$ac_save 137 if test "$pthreads_checked" = "yes"; then 138 ac_cv_pthreads_lib=$lib 139 break 140 fi 141 done 142fi 143]) 144 145if test "x$ac_cv_pthreads_cflags" != "x" -o "x$ac_cv_pthreads_lib" != "x"; then 146 pthreads_working="yes" 147fi 148 149if test "$pthreads_working" = "yes"; then 150 threads_result="POSIX-Threads found" 151else 152 threads_result="POSIX-Threads not found" 153fi 154])dnl 155dnl 156dnl 157AC_DEFUN([PTHREADS_ASSIGN_VARS],[ 158if test -n "$ac_cv_pthreads_lib"; then 159 LIBS="$LIBS -l$ac_cv_pthreads_lib" 160fi 161 162if test -n "$ac_cv_pthreads_cflags"; then 163 CFLAGS="$CFLAGS $ac_cv_pthreads_cflags" 164fi 165])dnl 166
