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 case $host_alias in 35 *solaris*) 36 PTHREAD_FLAGS="-D_POSIX_PTHREAD_SEMANTICS -D_REENTRANT";; 37 *freebsd*) 38 PTHREAD_FLAGS="-D_REENTRANT -D_THREAD_SAFE";; 39 *linux*) 40 PTHREAD_FLAGS=-D_REENTRANT;; 41 *aix*) 42 PTHREAD_FLAGS=-D_THREAD_SAFE;; 43 *hpux*) 44 PTHREAD_FLAGS=-D_REENTRANT;; 45 *sco*) 46 PTHREAD_FLAGS=-D_REENTRANT;; 47 esac 48 49 if test -n "$PTHREAD_FLAGS"; then 50 CPPFLAGS="$CPPFLAGS $PTHREAD_FLAGS" 51 fi 52]) 53 54dnl 55dnl PTHREADS_CHECK_COMPILE 56dnl 57dnl Check whether the current setup can use POSIX threads calls. 58dnl 59AC_DEFUN([PTHREADS_CHECK_COMPILE], [ 60AC_LINK_IFELSE([ AC_LANG_SOURCE([ 61#include <pthread.h> 62#include <stddef.h> 63 64void *thread_routine(void *data) { 65 return data; 66} 67 68int main(void) { 69 pthread_t thd; 70 pthread_mutexattr_t mattr; 71 int data = 1; 72 pthread_mutexattr_init(&mattr); 73 return pthread_create(&thd, NULL, thread_routine, &data); 74} ]) ], [ 75 pthreads_checked=yes 76 ], [ 77 pthreads_checked=no 78 ] 79) ] ) 80 81dnl 82dnl PTHREADS_CHECK 83dnl 84dnl Try to find a way to enable POSIX threads. 85dnl 86dnl Magic flags 87dnl -kthread gcc (FreeBSD) 88dnl -Kthread UDK cc (UnixWare) 89dnl -mt WorkShop cc (Solaris) 90dnl -mthreads gcc (AIX) 91dnl -pthread gcc (Linux, FreeBSD, NetBSD, OpenBSD) 92dnl -pthreads gcc (Solaris) 93dnl -qthreaded AIX cc V5 94dnl -threads gcc (HP-UX) 95dnl 96AC_DEFUN([PTHREADS_CHECK],[ 97AC_CACHE_CHECK(for pthreads_cflags,ac_cv_pthreads_cflags,[ 98ac_cv_pthreads_cflags= 99if test "$pthreads_working" != "yes"; then 100 for flag in -kthread -pthread -pthreads -mthreads -Kthread -threads -mt -qthreaded; do 101 ac_save=$CFLAGS 102 CFLAGS="$CFLAGS $flag" 103 PTHREADS_CHECK_COMPILE 104 CFLAGS=$ac_save 105 if test "$pthreads_checked" = "yes"; then 106 ac_cv_pthreads_cflags=$flag 107 break 108 fi 109 done 110fi 111]) 112 113AC_CACHE_CHECK(for pthreads_lib, ac_cv_pthreads_lib,[ 114ac_cv_pthreads_lib= 115if test "$pthreads_working" != "yes"; then 116 for lib in pthread pthreads c_r; do 117 ac_save=$LIBS 118 LIBS="$LIBS -l$lib" 119 PTHREADS_CHECK_COMPILE 120 LIBS=$ac_save 121 if test "$pthreads_checked" = "yes"; then 122 ac_cv_pthreads_lib=$lib 123 break 124 fi 125 done 126fi 127]) 128 129if test "x$ac_cv_pthreads_cflags" != "x" -o "x$ac_cv_pthreads_lib" != "x"; then 130 pthreads_working="yes" 131fi 132]) 133
