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_TRY_RUN( [ 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_working=yes 85 ], [ 86 pthreads_working=no 87 ], [ 88 dnl For cross compiling running this test is of no use. NetWare supports pthreads 89 pthreads_working=no 90 case $host_alias in 91 *netware*) 92 pthreads_working=yes 93 esac 94] 95) ] )dnl 96dnl 97dnl PTHREADS_CHECK() 98dnl 99dnl Try to find a way to enable POSIX threads 100dnl 101dnl Magic flags 102dnl -kthread gcc (FreeBSD) 103dnl -Kthread UDK cc (UnixWare) 104dnl -mt WorkShop cc (Solaris) 105dnl -mthreads gcc (AIX) 106dnl -pthread gcc (Linux, FreeBSD, NetBSD, OpenBSD) 107dnl -pthreads gcc (Solaris) 108dnl -qthreaded AIX cc V5 109dnl -threads gcc (HP-UX) 110dnl 111AC_DEFUN([PTHREADS_CHECK],[ 112 113if test "$beos_threads" = "1"; then 114 pthreads_working="yes" 115 ac_cv_pthreads_cflags="" 116else 117 save_CFLAGS=$CFLAGS 118 save_LIBS=$LIBS 119 PTHREADS_ASSIGN_VARS 120 PTHREADS_CHECK_COMPILE 121 LIBS=$save_LIBS 122 CFLAGS=$save_CFLAGS 123 124 AC_CACHE_CHECK(for pthreads_cflags,ac_cv_pthreads_cflags,[ 125 ac_cv_pthreads_cflags= 126 if test "$pthreads_working" != "yes"; then 127 for flag in -kthread -pthread -pthreads -mthreads -Kthread -threads -mt -qthreaded; do 128 ac_save=$CFLAGS 129 CFLAGS="$CFLAGS $flag" 130 PTHREADS_CHECK_COMPILE 131 CFLAGS=$ac_save 132 if test "$pthreads_working" = "yes"; then 133 ac_cv_pthreads_cflags=$flag 134 break 135 fi 136 done 137 fi 138fi 139]) 140 141AC_CACHE_CHECK(for pthreads_lib, ac_cv_pthreads_lib,[ 142ac_cv_pthreads_lib= 143if test "$pthreads_working" != "yes"; then 144 for lib in pthread pthreads c_r; do 145 ac_save=$LIBS 146 LIBS="$LIBS -l$lib" 147 PTHREADS_CHECK_COMPILE 148 LIBS=$ac_save 149 if test "$pthreads_working" = "yes"; then 150 ac_cv_pthreads_lib=$lib 151 break 152 fi 153 done 154fi 155]) 156 157if test "$pthreads_working" = "yes"; then 158 threads_result="POSIX-Threads found" 159else 160 threads_result="POSIX-Threads not found" 161fi 162])dnl 163dnl 164dnl 165AC_DEFUN([PTHREADS_ASSIGN_VARS],[ 166if test -n "$ac_cv_pthreads_lib"; then 167 LIBS="$LIBS -l$ac_cv_pthreads_lib" 168fi 169 170if test -n "$ac_cv_pthreads_cflags"; then 171 CFLAGS="$CFLAGS $ac_cv_pthreads_cflags" 172fi 173])dnl 174
