-# signal_h.m4 serial 8
-dnl Copyright (C) 2007, 2008, 2009 Free Software Foundation, Inc.
+# signal_h.m4 serial 11
+dnl Copyright (C) 2007-2011 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.
AC_DEFUN([gl_SIGNAL_H],
[
AC_REQUIRE([gl_SIGNAL_H_DEFAULTS])
- gl_CHECK_NEXT_HEADERS([signal.h])
+ gl_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], [],
#include <signal.h>
]])
AC_REQUIRE([AC_TYPE_UID_T])
+
+ dnl Check for declarations of anything we want to poison if the
+ dnl corresponding gnulib module is not in use.
+ gl_WARN_ON_USE_PREPARE([[#include <signal.h>
+ ]], [sigaction sigaddset sigdelset sigemptyset sigfillset sigismember
+ sigpending sigprocmask])
])
AC_DEFUN([gl_SIGNAL_MODULE_INDICATOR],
[
dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
AC_REQUIRE([gl_SIGNAL_H_DEFAULTS])
- GNULIB_[]m4_translit([$1],[abcdefghijklmnopqrstuvwxyz./-],[ABCDEFGHIJKLMNOPQRSTUVWXYZ___])=1
+ gl_MODULE_INDICATOR_SET_VARIABLE([$1])
+ dnl Define it also as a C macro, for the benefit of the unit tests.
+ gl_MODULE_INDICATOR_FOR_TESTS([$1])
])
AC_DEFUN([gl_SIGNAL_H_DEFAULTS],