X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=m4%2Fsignal_h.m4;h=e69befd0eda57258d37e0ba2ea10ae9c9270d069;hb=12a64eb033ac96ccc78f96d66067c70be7d2be90;hp=bf2bad41e6d72f5e264553ad9164931e9f040c73;hpb=cfb3906f210bec09f48f5d48511b72064153311a;p=gnulib.git

diff --git a/m4/signal_h.m4 b/m4/signal_h.m4
index bf2bad41e..e69befd0e 100644
--- a/m4/signal_h.m4
+++ b/m4/signal_h.m4
@@ -1,5 +1,5 @@
-# signal_h.m4 serial 4
-dnl Copyright (C) 2007, 2008 Free Software Foundation, Inc.
+# signal_h.m4 serial 7
+dnl Copyright (C) 2007, 2008, 2009 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.
@@ -8,6 +8,12 @@ AC_DEFUN([gl_SIGNAL_H],
 [
   AC_REQUIRE([gl_SIGNAL_H_DEFAULTS])
   gl_CHECK_NEXT_HEADERS([signal.h])
+# AIX declares sig_atomic_t to already include volatile, and C89 compilers
+# then choke on 'volatile sig_atomic_t'.  C99 requires that it compile.
+  AC_CHECK_TYPE([volatile sig_atomic_t], [],
+    [HAVE_TYPE_VOLATILE_SIG_ATOMIC_T=0], [[
+#include <signal.h>
+    ]])
 ])
 
 AC_DEFUN([gl_SIGNAL_MODULE_INDICATOR],
@@ -19,6 +25,7 @@ AC_DEFUN([gl_SIGNAL_MODULE_INDICATOR],
 
 AC_DEFUN([gl_SIGNAL_H_DEFAULTS],
 [
+  GNULIB_SIGNAL_H_SIGPIPE=0;   AC_SUBST([GNULIB_SIGNAL_H_SIGPIPE])
   GNULIB_SIGPROCMASK=0;        AC_SUBST([GNULIB_SIGPROCMASK])
   GNULIB_SIGACTION=0;          AC_SUBST([GNULIB_SIGACTION])
   dnl Assume proper GNU behavior unless another module says otherwise.
@@ -26,4 +33,8 @@ AC_DEFUN([gl_SIGNAL_H_DEFAULTS],
   HAVE_SIGSET_T=1;             AC_SUBST([HAVE_SIGSET_T])
   HAVE_SIGINFO_T=1;            AC_SUBST([HAVE_SIGINFO_T])
   HAVE_SIGACTION=1;            AC_SUBST([HAVE_SIGACTION])
+  HAVE_STRUCT_SIGACTION_SA_SIGACTION=1;
+                               AC_SUBST([HAVE_STRUCT_SIGACTION_SA_SIGACTION])
+  HAVE_TYPE_VOLATILE_SIG_ATOMIC_T=1;
+                               AC_SUBST([HAVE_TYPE_VOLATILE_SIG_ATOMIC_T])
 ])