-# sigaction.m4 serial 4
-dnl Copyright (C) 2008 Free Software Foundation, Inc.
+# sigaction.m4 serial 5
+dnl Copyright (C) 2008, 2009, 2010 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.
AC_DEFUN([gl_SIGACTION],
[
AC_REQUIRE([gl_SIGNAL_H_DEFAULTS])
- AC_REPLACE_FUNCS([sigaction])
- if test $ac_cv_func_sigaction = no ; then
+ AC_CHECK_FUNCS_ONCE([sigaction])
+ if test $ac_cv_func_sigaction = yes; then
+ AC_CHECK_MEMBERS([struct sigaction.sa_sigaction], , ,
+ [[#include <signal.h>]])
+ if test $ac_cv_member_struct_sigaction_sa_sigaction = no; then
+ HAVE_STRUCT_SIGACTION_SA_SIGACTION=0
+ fi
+ else
HAVE_SIGACTION=0
- AC_SUBST([HAVE_SIGACTION])
+ AC_LIBOBJ([sigaction])
gl_PREREQ_SIGACTION
fi
])
]])
if test $ac_cv_type_siginfo_t = no; then
HAVE_SIGINFO_T=0
- AC_SUBST([HAVE_SIGINFO_T])
fi
])
AC_DEFUN([gl_PREREQ_SIG_HANDLER_H],
[
AC_REQUIRE([AC_C_INLINE])
- AC_CHECK_MEMBERS([struct sigaction.sa_sigaction], , ,
- [[#include <signal.h>]])
- if test $ac_cv_member_struct_sigaction_sa_sigaction = no; then
- HAVE_STRUCT_SIGACTION_SA_SIGACTION=0
- AC_SUBST([HAVE_STRUCT_SIGACTION_SA_SIGACTION])
- fi
])