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dnl Copyright (c) 1999, 2000 Sascha Schumann. All rights reserved.
dnl
dnl Redistribution and use in source and binary forms, with or without
dnl modification, are permitted provided that the following conditions
dnl are met:
dnl
dnl 1. Redistributions of source code must retain the above copyright
dnl notice, this list of conditions and the following disclaimer.
dnl
dnl 2. Redistributions in binary form must reproduce the above copyright
dnl notice, this list of conditions and the following disclaimer in
dnl the documentation and/or other materials provided with the
dnl distribution.
dnl
dnl THIS SOFTWARE IS PROVIDED BY SASCHA SCHUMANN ``AS IS'' AND ANY
dnl EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
dnl IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
dnl PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL SASCHA SCHUMANN OR
dnl HIS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
dnl SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
dnl NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
dnl LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
dnl HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
dnl STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
dnl ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
dnl OF THE POSSIBILITY OF SUCH DAMAGE.
dnl
dnl PTHREADS_FLAGS
dnl
dnl Set some magic defines to achieve POSIX threads conformance.
dnl
AC_DEFUN([PTHREADS_FLAGS],[
if test -z "$host_alias" && test -n "$host"; then
host_alias=$host
fi
if test -z "$host_alias"; then
AC_MSG_ERROR(host_alias is not set. Make sure to run config.guess)
fi
case $host_alias in
*solaris*)
PTHREAD_FLAGS="-D_POSIX_PTHREAD_SEMANTICS -D_REENTRANT";;
*freebsd*)
PTHREAD_FLAGS="-D_REENTRANT -D_THREAD_SAFE";;
*linux*)
PTHREAD_FLAGS=-D_REENTRANT;;
*aix*)
PTHREAD_FLAGS=-D_THREAD_SAFE;;
*irix*)
PTHREAD_FLAGS=-D_POSIX_THREAD_SAFE_FUNCTIONS;;
*hpux*)
PTHREAD_FLAGS=-D_REENTRANT;;
*sco*)
PTHREAD_FLAGS=-D_REENTRANT;;
esac
if test -n "$PTHREAD_FLAGS"; then
CPPFLAGS="$CPPFLAGS $PTHREAD_FLAGS"
fi
])
dnl
dnl PTHREADS_CHECK_COMPILE
dnl
dnl Check whether the current setup can use POSIX threads calls.
dnl
AC_DEFUN([PTHREADS_CHECK_COMPILE], [
AC_LINK_IFELSE([ AC_LANG_SOURCE([
#include <pthread.h>
#include <stddef.h>
void *thread_routine(void *data) {
return data;
}
int main() {
pthread_t thd;
pthread_mutexattr_t mattr;
int data = 1;
pthread_mutexattr_init(&mattr);
return pthread_create(&thd, NULL, thread_routine, &data);
} ]) ], [
pthreads_checked=yes
], [
pthreads_checked=no
]
) ] )
dnl
dnl PTHREADS_CHECK
dnl
dnl Try to find a way to enable POSIX threads.
dnl
dnl Magic flags
dnl -kthread gcc (FreeBSD)
dnl -Kthread UDK cc (UnixWare)
dnl -mt WorkShop cc (Solaris)
dnl -mthreads gcc (AIX)
dnl -pthread gcc (Linux, FreeBSD, NetBSD, OpenBSD)
dnl -pthreads gcc (Solaris)
dnl -qthreaded AIX cc V5
dnl -threads gcc (HP-UX)
dnl
AC_DEFUN([PTHREADS_CHECK],[
AC_CACHE_CHECK(for pthreads_cflags,ac_cv_pthreads_cflags,[
ac_cv_pthreads_cflags=
if test "$pthreads_working" != "yes"; then
for flag in -kthread -pthread -pthreads -mthreads -Kthread -threads -mt -qthreaded; do
ac_save=$CFLAGS
CFLAGS="$CFLAGS $flag"
PTHREADS_CHECK_COMPILE
CFLAGS=$ac_save
if test "$pthreads_checked" = "yes"; then
ac_cv_pthreads_cflags=$flag
break
fi
done
fi
])
AC_CACHE_CHECK(for pthreads_lib, ac_cv_pthreads_lib,[
ac_cv_pthreads_lib=
if test "$pthreads_working" != "yes"; then
for lib in pthread pthreads c_r; do
ac_save=$LIBS
LIBS="$LIBS -l$lib"
PTHREADS_CHECK_COMPILE
LIBS=$ac_save
if test "$pthreads_checked" = "yes"; then
ac_cv_pthreads_lib=$lib
break
fi
done
fi
])
if test "x$ac_cv_pthreads_cflags" != "x" -o "x$ac_cv_pthreads_lib" != "x"; then
pthreads_working="yes"
fi
])
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