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 $PTHREAD_FLAGS" 61 fi 62])dnl 63dnl 64dnl PTHREADS_CHECK_COMPILE 65dnl 66dnl Check whether the current setup can use POSIX threads calls 67dnl 68AC_DEFUN([PTHREADS_CHECK_COMPILE], [ 69AC_LINK_IFELSE([ AC_LANG_SOURCE([ 70#include <pthread.h> 71#include <stddef.h> 72 73void *thread_routine(void *data) { 74 return data; 75} 76 77int main() { 78 pthread_t thd; 79 pthread_mutexattr_t mattr; 80 int data = 1; 81 pthread_mutexattr_init(&mattr); 82 return pthread_create(&thd, NULL, thread_routine, &data); 83} ]) ], [ 84 pthreads_checked=yes 85 ], [ 86 pthreads_checked=no 87 ] 88) ] )dnl 89dnl 90dnl PTHREADS_CHECK() 91dnl 92dnl Try to find a way to enable POSIX threads 93dnl 94dnl Magic flags 95dnl -kthread gcc (FreeBSD) 96dnl -Kthread UDK cc (UnixWare) 97dnl -mt WorkShop cc (Solaris) 98dnl -mthreads gcc (AIX) 99dnl -pthread gcc (Linux, FreeBSD, NetBSD, OpenBSD) 100dnl -pthreads gcc (Solaris) 101dnl -qthreaded AIX cc V5 102dnl -threads gcc (HP-UX) 103dnl 104AC_DEFUN([PTHREADS_CHECK],[ 105 106if test "$beos_threads" = "1"; then 107 pthreads_working="yes" 108 ac_cv_pthreads_cflags="" 109else 110 save_CFLAGS=$CFLAGS 111 save_LIBS=$LIBS 112 PTHREADS_ASSIGN_VARS 113 PTHREADS_CHECK_COMPILE 114 LIBS=$save_LIBS 115 CFLAGS=$save_CFLAGS 116 117 AC_CACHE_CHECK(for pthreads_cflags,ac_cv_pthreads_cflags,[ 118 ac_cv_pthreads_cflags= 119 if test "$pthreads_working" != "yes"; then 120 for flag in -kthread -pthread -pthreads -mthreads -Kthread -threads -mt -qthreaded; do 121 ac_save=$CFLAGS 122 CFLAGS="$CFLAGS $flag" 123 PTHREADS_CHECK_COMPILE 124 CFLAGS=$ac_save 125 if test "$pthreads_checked" = "yes"; then 126 ac_cv_pthreads_cflags=$flag 127 break 128 fi 129 done 130 fi 131 ]) 132 133 AC_CACHE_CHECK(for pthreads_lib, ac_cv_pthreads_lib,[ 134 ac_cv_pthreads_lib= 135 if test "$pthreads_working" != "yes"; then 136 for lib in pthread pthreads c_r; do 137 ac_save=$LIBS 138 LIBS="$LIBS -l$lib" 139 PTHREADS_CHECK_COMPILE 140 LIBS=$ac_save 141 if test "$pthreads_checked" = "yes"; then 142 ac_cv_pthreads_lib=$lib 143 break 144 fi 145 done 146 fi 147 ]) 148 149 if test "x$ac_cv_pthreads_cflags" != "x" -o "x$ac_cv_pthreads_lib" != "x"; then 150 pthreads_working="yes" 151 fi 152fi 153 154if test "$pthreads_working" = "yes"; then 155 threads_result="POSIX-Threads found" 156else 157 threads_result="POSIX-Threads not found" 158fi 159])dnl 160dnl 161dnl 162AC_DEFUN([PTHREADS_ASSIGN_VARS],[ 163if test -n "$ac_cv_pthreads_lib"; then 164 LIBS="$LIBS -l$ac_cv_pthreads_lib" 165fi 166 167if test -n "$ac_cv_pthreads_cflags"; then 168 CFLAGS="$CFLAGS $ac_cv_pthreads_cflags" 169fi 170])dnl 171
