-# gnulib-common.m4 serial 2
-dnl Copyright (C) 2007 Free Software Foundation, Inc.
+# gnulib-common.m4 serial 11
+dnl Copyright (C) 2007-2009 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.
+# gl_COMMON
+# is expanded unconditionally through gnulib-tool magic.
+AC_DEFUN([gl_COMMON], [
+ dnl Use AC_REQUIRE here, so that the code is expanded once only.
+ AC_REQUIRE([gl_00GNULIB])
+ AC_REQUIRE([gl_COMMON_BODY])
+])
+AC_DEFUN([gl_COMMON_BODY], [
+ AH_VERBATIM([isoc99_inline],
+[/* Work around a bug in Apple GCC 4.0.1 build 5465: In C99 mode, it supports
+ the ISO C 99 semantics of 'extern inline' (unlike the GNU C semantics of
+ earlier versions), but does not display it by setting __GNUC_STDC_INLINE__.
+ __APPLE__ && __MACH__ test for MacOS X.
+ __APPLE_CC__ tests for the Apple compiler and its version.
+ __STDC_VERSION__ tests for the C99 mode. */
+#if defined __APPLE__ && defined __MACH__ && __APPLE_CC__ >= 5465 && !defined __cplusplus && __STDC_VERSION__ >= 199901L && !defined __GNUC_STDC_INLINE__
+# 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. */
+#if __GNUC__ >= 3 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7)
+# define _UNUSED_PARAMETER_ __attribute__ ((__unused__))
+#else
+# define _UNUSED_PARAMETER_
+#endif
+])
+])
+
# gl_MODULE_INDICATOR([modulename])
# defines a C macro indicating the presence of the given module.
AC_DEFUN([gl_MODULE_INDICATOR],
[Define to 1 when using the gnulib module ]$1[.])
])
+# m4_foreach_w
+# is a backport of autoconf-2.59c's m4_foreach_w.
+# Remove this macro when we can assume autoconf >= 2.60.
+m4_ifndef([m4_foreach_w],
+ [m4_define([m4_foreach_w],
+ [m4_foreach([$1], m4_split(m4_normalize([$2]), [ ]), [$3])])])
+
# AC_PROG_MKDIR_P
# is a backport of autoconf-2.60's AC_PROG_MKDIR_P.
# Remove this macro when we can assume autoconf >= 2.60.
m4_ifdef([AC_PROG_MKDIR_P], [], [
- AC_DEFUN([AC_PROG_MKDIR_P],
+ AC_DEFUN_ONCE([AC_PROG_MKDIR_P],
[AC_REQUIRE([AM_PROG_MKDIR_P])dnl defined by automake
MKDIR_P='$(mkdir_p)'
AC_SUBST([MKDIR_P])])])
+
+# AC_C_RESTRICT
+# This definition overrides the AC_C_RESTRICT macro from autoconf 2.60..2.61,
+# so that mixed use of GNU C and GNU C++ and mixed use of Sun C and Sun C++
+# works.
+# This definition can be removed once autoconf >= 2.62 can be assumed.
+AC_DEFUN([AC_C_RESTRICT],
+[AC_CACHE_CHECK([for C/C++ restrict keyword], [ac_cv_c_restrict],
+ [ac_cv_c_restrict=no
+ # The order here caters to the fact that C++ does not require restrict.
+ 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 s[1];
+ 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
+ ])
+ AH_VERBATIM([restrict],
+[/* Define to the equivalent of the C99 'restrict' keyword, or to
+ nothing if this is not supported. Do not define if restrict is
+ supported directly. */
+#undef restrict
+/* Work around a bug in Sun C++: it does not support _Restrict, even
+ though the corresponding Sun C compiler does, which causes
+ "#define restrict _Restrict" in the previous line. Perhaps some future
+ version of Sun C++ will work with _Restrict; if so, it'll probably
+ define __RESTRICT, just as Sun C does. */
+#if defined __SUNPRO_CC && !defined __RESTRICT
+# define _Restrict
+#endif])
+ case $ac_cv_c_restrict in
+ restrict) ;;
+ no) AC_DEFINE([restrict], []) ;;
+ *) AC_DEFINE_UNQUOTED([restrict], [$ac_cv_c_restrict]) ;;
+ esac
+])
+
+# gl_BIGENDIAN
+# is like AC_C_BIGENDIAN, except that it can be AC_REQUIREd.
+# Note that AC_REQUIRE([AC_C_BIGENDIAN]) does not work reliably because some
+# macros invoke AC_C_BIGENDIAN with arguments.
+AC_DEFUN([gl_BIGENDIAN],
+[
+ 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"
+])
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