git.m6w6.name Git - awesomized/libmemcached/blob - 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 4
  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