blob: f054899f62e294ce812d00e739f6815cd1ee489d (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
|
dnl
dnl Threading stuff for CUPS.
dnl
dnl Copyright 2007-2017 by Apple Inc.
dnl Copyright 1997-2005 by Easy Software Products, all rights reserved.
dnl
dnl Licensed under Apache License v2.0. See the file "LICENSE" for more information.
dnl
AC_ARG_ENABLE(threads, [ --disable-threads disable multi-threading support])
have_pthread=no
PTHREAD_FLAGS=""
if test "x$enable_threads" != xno; then
AC_CHECK_HEADER(pthread.h, AC_DEFINE(HAVE_PTHREAD_H))
if test x$ac_cv_header_pthread_h = xyes; then
dnl Check various threading options for the platforms we support
for flag in -lpthreads -lpthread -pthread; do
AC_MSG_CHECKING([for pthread_create using $flag])
SAVELIBS="$LIBS"
LIBS="$flag $LIBS"
AC_TRY_LINK([#include <pthread.h>],
[pthread_create(0, 0, 0, 0);],
have_pthread=yes,
LIBS="$SAVELIBS")
AC_MSG_RESULT([$have_pthread])
if test $have_pthread = yes; then
PTHREAD_FLAGS="-D_THREAD_SAFE -D_REENTRANT"
# Solaris requires -D_POSIX_PTHREAD_SEMANTICS to
# be POSIX-compliant... :(
if test $host_os_name = sunos; then
PTHREAD_FLAGS="$PTHREAD_FLAGS -D_POSIX_PTHREAD_SEMANTICS"
fi
break
fi
done
fi
fi
AC_SUBST(PTHREAD_FLAGS)
|
