-# gnulib-common.m4 serial 10
-dnl Copyright (C) 2007-2009 Free Software Foundation, Inc.
+# gnulib-common.m4 serial 13
+dnl Copyright (C) 2007-2010 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.
# define __GNUC_STDC_INLINE__ 1
#endif])
AH_VERBATIM([unused_parameter],
-[/* Define as a marker that can be attached to function parameter declarations
- for parameters that are not used. This helps to reduce warnings, such as
- from GCC -Wunused-parameter. */
+[/* Define as a marker that can be attached to declarations that might not
+ be used. This helps to reduce warnings, such as from
+ GCC -Wunused-parameter. */
#if __GNUC__ >= 3 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7)
-# define _UNUSED_PARAMETER_ __attribute__ ((__unused__))
+# define _GL_UNUSED __attribute__ ((__unused__))
#else
-# define _UNUSED_PARAMETER_
+# define _GL_UNUSED
#endif
+/* The name _UNUSED_PARAMETER_ is an earlier spelling, although the name
+ is a misnomer outside of parameter lists. */
+#define _UNUSED_PARAMETER_ _GL_UNUSED
])
])
[m4_define([m4_foreach_w],
[m4_foreach([$1], m4_split(m4_normalize([$2]), [ ]), [$3])])])
+# AS_VAR_IF(VAR, VALUE, [IF-MATCH], [IF-NOT-MATCH])
+# ----------------------------------------------------
+# Backport of autoconf-2.63b's macro.
+# Remove this macro when we can assume autoconf >= 2.64.
+m4_ifndef([AS_VAR_IF],
+[m4_define([AS_VAR_IF],
+[AS_IF([test x"AS_VAR_GET([$1])" = x""$2], [$3], [$4])])])
+
# AC_PROG_MKDIR_P
-# is a backport of autoconf-2.60's AC_PROG_MKDIR_P.
-# Remove this macro when we can assume autoconf >= 2.60.
-m4_ifdef([AC_PROG_MKDIR_P], [], [
+# is a backport of autoconf-2.60's AC_PROG_MKDIR_P, with a fix
+# for interoperability with automake-1.9.6 from autoconf-2.62.
+# Remove this macro when we can assume autoconf >= 2.62 or
+# autoconf >= 2.60 && automake >= 1.10.
+m4_ifdef([AC_PROG_MKDIR_P], [
+ dnl For automake-1.9.6 && autoconf < 2.62: Ensure MKDIR_P is AC_SUBSTed.
+ m4_define([AC_PROG_MKDIR_P],
+ m4_defn([AC_PROG_MKDIR_P])[
+ AC_SUBST([MKDIR_P])])], [
+ dnl For autoconf < 2.60: Backport of AC_PROG_MKDIR_P.
AC_DEFUN_ONCE([AC_PROG_MKDIR_P],
[AC_REQUIRE([AM_PROG_MKDIR_P])dnl defined by automake
MKDIR_P='$(mkdir_p)'
for ac_kw in __restrict __restrict__ _Restrict restrict; do
AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
[[typedef int * int_ptr;
- int foo (int_ptr $ac_kw ip) {
- return ip[0];
+ int foo (int_ptr $ac_kw ip) {
+ return ip[0];
}]],
[[int s[1];
- int * $ac_kw t = s;
- t[0] = 0;
- return foo(t)]])],
+ int * $ac_kw t = s;
+ t[0] = 0;
+ return foo(t)]])],
[ac_cv_c_restrict=$ac_kw])
test "$ac_cv_c_restrict" != no && break
done
[
AC_C_BIGENDIAN
])
+
+# gl_CACHE_VAL_SILENT(cache-id, command-to-set-it)
+# is like AC_CACHE_VAL(cache-id, command-to-set-it), except that it does not
+# output a spurious "(cached)" mark in the midst of other configure output.
+# This macro should be used instead of AC_CACHE_VAL when it is not surrounded
+# by an AC_MSG_CHECKING/AC_MSG_RESULT pair.
+AC_DEFUN([gl_CACHE_VAL_SILENT],
+[
+ saved_as_echo_n="$as_echo_n"
+ as_echo_n=':'
+ AC_CACHE_VAL([$1], [$2])
+ as_echo_n="$saved_as_echo_n"
+])