Update after fixing clang issue with pragma.
[m6w6/libmemcached] / m4 / ax_pthread_timedjoin_np.m4
1 # ===========================================================================
2 # http://
3 # ===========================================================================
4 #
5 # SYNOPSIS
6 #
7 # AX_PTHREAD_TIMEDJOIN_NP
8 #
9 # DESCRIPTION
10 #
11 # Check for pthread_timedjoin_np support.
12 #
13 # LICENSE
14 #
15 # Copyright (c) 2012 Brian Aker <brian@tangent.org>
16 #
17 # Copying and distribution of this file, with or without modification, are
18 # permitted in any medium without royalty provided the copyright notice
19 # and this notice are preserved. This file is offered as-is, without any
20 # warranty.
21
22 #serial 3
23
24 AC_DEFUN([AX_PTHREAD_TIMEDJOIN_NP], [
25 AC_REQUIRE([AX_PTHREAD])
26 AC_CACHE_CHECK([check for pthread_timedjoin_np], [ax_cv_pthread_timedjoin_np], [
27 save_LDFLAGS="$LDFLAGS"
28 LDFLAGS="$PTHREAD_LIBS"
29 AC_LANG_PUSH([C])
30 AC_LINK_IFELSE([
31 AC_LANG_PROGRAM([
32 #ifndef _GNU_SOURCE
33 #define _GNU_SOURCE
34 #endif
35
36 #include <stdlib.h>
37 #include <pthread.h>
38 ], [
39 pthread_t thread;
40 pthread_timedjoin_np(thread, NULL);
41 ])],
42 [ax_cv_pthread_timedjoin_np=yes],
43 [])
44
45 AC_LANG_POP
46 LDFLAGS="$save_LDFLAGS"
47
48 ])
49
50 AS_IF([test "$ax_cv_pthread_timedjoin_np" = yes],[
51 AC_DEFINE(HAVE_PTHREAD_TIMEDJOIN_NP,[1],[Define if pthread_timedjoin_np is present in pthread.h.])],[
52 AC_DEFINE(HAVE_PTHREAD_TIMEDJOIN_NP,[0],[Define if pthread_timedjoin_np is present in pthread.h.])
53 ])
54 ])
55