X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=m4%2Fsignalblocking.m4;h=eda856d04f9d5616843bc6092fd519066ac9e467;hb=48a6564774f35e0c0b2ca55c73ccb26067396439;hp=1a88f52fd6f06bc3d5c67adc8b3c6e7a18c39925;hpb=40b33d9d6c32cd1afac372a5da2b002aac5a881d;p=gnulib.git

diff --git a/m4/signalblocking.m4 b/m4/signalblocking.m4
index 1a88f52fd..eda856d04 100644
--- a/m4/signalblocking.m4
+++ b/m4/signalblocking.m4
@@ -1,23 +1,27 @@
-# signalblocking.m4 serial 1 (gettext-0.11)
-dnl Copyright (C) 2001-2002 Free Software Foundation, Inc.
-dnl This file is free software, distributed under the terms of the GNU
-dnl General Public License.  As a special exception to the GNU General
-dnl Public License, this file may be distributed as part of a program
-dnl that contains a configuration script generated by Autoconf, under
-dnl the same distribution terms as the rest of that program.
+# signalblocking.m4 serial 13
+dnl Copyright (C) 2001-2002, 2006-2011 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
 
 # Determine available signal blocking primitives. Three different APIs exist:
 # 1) POSIX: sigemptyset, sigaddset, sigprocmask
 # 2) SYSV: sighold, sigrelse
 # 3) BSD: sigblock, sigsetmask
 # For simplicity, here we check only for the POSIX signal blocking.
-AC_DEFUN([gt_SIGNALBLOCKING],
+AC_DEFUN([gl_SIGNALBLOCKING],
 [
-  signals_not_posix=
-  AC_EGREP_HEADER(sigset_t, signal.h, , signals_not_posix=1)
-  if test -z "$signals_not_posix"; then
-    AC_CHECK_FUNC(sigprocmask,
-      AC_DEFINE(HAVE_POSIX_SIGNALBLOCKING, 1,
-       [Define to 1 if you have the sigset_t type and the sigprocmask function.]))
+  AC_REQUIRE([gl_SIGNAL_H_DEFAULTS])
+  AC_REQUIRE([gl_CHECK_TYPE_SIGSET_T])
+  if test $gl_cv_type_sigset_t = yes; then
+    AC_CHECK_FUNC([sigprocmask], [gl_cv_func_sigprocmask=1])
   fi
+  if test -z "$gl_cv_func_sigprocmask"; then
+    HAVE_POSIX_SIGNALBLOCKING=0
+  fi
+])
+
+# Prerequisites of lib/sigprocmask.c.
+AC_DEFUN([gl_PREREQ_SIGPROCMASK], [
+  AC_REQUIRE([AC_C_INLINE])
 ])