2N/Adnl Copyright (C) 2007-2010 Free Software Foundation, Inc.
2N/Adnl This file is free software; the Free Software Foundation
2N/Adnl gives unlimited permission to copy
and/or distribute it,
2N/Adnl with or without modifications, as long as this notice is preserved.
2N/A# is expanded unconditionally through gnulib-tool magic.
2N/AAC_DEFUN([gl_COMMON], [
2N/A dnl Use AC_REQUIRE here, so that the code is expanded once only.
2N/A AC_REQUIRE([gl_00GNULIB])
2N/A AC_REQUIRE([gl_COMMON_BODY])
2N/AAC_DEFUN([gl_COMMON_BODY], [
2N/A AH_VERBATIM([isoc99_inline],
2N/A[/* Work around a bug in Apple GCC 4.0.1 build 5465: In C99 mode, it supports
2N/A the ISO C 99 semantics of 'extern inline' (unlike the GNU C semantics of
2N/A earlier versions), but does not display it by setting __GNUC_STDC_INLINE__.
2N/A __APPLE__ && __MACH__ test for MacOS X.
2N/A __APPLE_CC__ tests for the Apple compiler and its version.
2N/A __STDC_VERSION__ tests for the C99 mode. */
2N/A#if defined __APPLE__ && defined __MACH__ && __APPLE_CC__ >= 5465 && !defined __cplusplus && __STDC_VERSION__ >= 199901L && !defined __GNUC_STDC_INLINE__
2N/A# define __GNUC_STDC_INLINE__ 1
2N/A AH_VERBATIM([unused_parameter],
2N/A[/* Define as a marker that can be attached to declarations that might not
2N/A be used. This helps to reduce warnings, such as from
2N/A GCC -Wunused-parameter. */
2N/A#if __GNUC__ >= 3 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7)
2N/A# define _GL_UNUSED __attribute__ ((__unused__))
2N/A/* The name _UNUSED_PARAMETER_ is an earlier spelling, although the name
2N/A is a misnomer outside of parameter lists. */
2N/A#define _UNUSED_PARAMETER_ _GL_UNUSED
2N/A dnl Preparation for running test programs:
2N/A dnl Tell glibc to write diagnostics from -D_FORTIFY_SOURCE=2 to stderr, not
2N/A dnl to
/dev/tty, so they can be redirected to log files. Such diagnostics
2N/A dnl arise
e.g., in the macros gl_PRINTF_DIRECTIVE_N, gl_SNPRINTF_DIRECTIVE_N.
2N/A LIBC_FATAL_STDERR_=1
2N/A export LIBC_FATAL_STDERR_
2N/A# gl_MODULE_INDICATOR_CONDITION
2N/A# expands to a C preprocessor expression that evaluates to 1 or 0, depending
2N/A# whether a gnulib module that has been requested shall be considered present
2N/AAC_DEFUN([gl_MODULE_INDICATOR_CONDITION], [1])
2N/A# gl_MODULE_INDICATOR_SET_VARIABLE([modulename])
2N/A# sets the shell variable that indicates the presence of the given module to
2N/A# a C preprocessor expression that will evaluate to 1.
2N/AAC_DEFUN([gl_MODULE_INDICATOR_SET_VARIABLE],
2N/A GNULIB_[]m4_translit([[$1]],
2N/A [abcdefghijklmnopqrstuvwxyz./-],
2N/A [ABCDEFGHIJKLMNOPQRSTUVWXYZ___])=gl_MODULE_INDICATOR_CONDITION
2N/A# gl_MODULE_INDICATOR([modulename])
2N/A# defines a C macro indicating the presence of the given module
2N/A# in a location where it can be used.
2N/A# | in lib/ | in tests/ |
2N/A# --------------------------------------------+---------+-----------+
2N/A# Module present among main modules: | 1 | 1 |
2N/A# --------------------------------------------+---------+-----------+
2N/A# Module present among tests-related modules: | 0 | 1 |
2N/A# --------------------------------------------+---------+-----------+
2N/A# Module not present at all: | 0 | 0 |
2N/A# --------------------------------------------+---------+-----------+
2N/AAC_DEFUN([gl_MODULE_INDICATOR],
2N/A AC_DEFINE_UNQUOTED([GNULIB_]m4_translit([[$1]],
2N/A [abcdefghijklmnopqrstuvwxyz./-],
2N/A [ABCDEFGHIJKLMNOPQRSTUVWXYZ___]),
2N/A [gl_MODULE_INDICATOR_CONDITION],
2N/A [Define to a C preprocessor expression that evaluates to 1 or 0,
2N/A depending whether the gnulib module $1 shall be considered present.])
2N/A# gl_MODULE_INDICATOR_FOR_TESTS([modulename])
2N/A# defines a C macro indicating the presence of the given module
2N/A# in lib or tests. This is useful to determine whether the module
2N/A# | in lib/ | in tests/ |
2N/A# --------------------------------------------+---------+-----------+
2N/A# Module present among main modules: | 1 | 1 |
2N/A# --------------------------------------------+---------+-----------+
2N/A# Module present among tests-related modules: | 1 | 1 |
2N/A# --------------------------------------------+---------+-----------+
2N/A# Module not present at all: | 0 | 0 |
2N/A# --------------------------------------------+---------+-----------+
2N/AAC_DEFUN([gl_MODULE_INDICATOR_FOR_TESTS],
2N/A AC_DEFINE([GNULIB_TEST_]m4_translit([[$1]],
2N/A [abcdefghijklmnopqrstuvwxyz./-],
2N/A [ABCDEFGHIJKLMNOPQRSTUVWXYZ___]), [1],
2N/A [Define to 1 when the gnulib module $1 should be tested.])
2N/A# is a backport of autoconf-2.59c's m4_foreach_w.
2N/A# Remove this macro when we can assume autoconf >= 2.60.
2N/Am4_ifndef([m4_foreach_w],
2N/A [m4_define([m4_foreach_w],
2N/A [m4_foreach([$1], m4_split(m4_normalize([$2]), [ ]), [$3])])])
2N/A# AS_VAR_IF(VAR, VALUE, [IF-MATCH], [IF-NOT-MATCH])
2N/A# ----------------------------------------------------
2N/A# Backport of autoconf-2.63b's macro.
2N/A# Remove this macro when we can assume autoconf >= 2.64.
2N/Am4_ifndef([AS_VAR_IF],
2N/A[m4_define([AS_VAR_IF],
2N/A[AS_IF([test x"AS_VAR_GET([$1])" = x""$2], [$3], [$4])])])
2N/A# is a backport of autoconf-2.60's AC_PROG_MKDIR_P, with a fix
2N/A# for interoperability with automake-1.9.6 from autoconf-2.62.
2N/A# Remove this macro when we can assume autoconf >= 2.62 or
2N/A# autoconf >= 2.60 && automake >= 1.10.
2N/Am4_ifdef([AC_PROG_MKDIR_P], [
2N/A dnl For automake-1.9.6 && autoconf < 2.62: Ensure MKDIR_P is AC_SUBSTed.
2N/A m4_define([AC_PROG_MKDIR_P],
2N/A m4_defn([AC_PROG_MKDIR_P])[
2N/A AC_SUBST([MKDIR_P])])], [
2N/A dnl For autoconf < 2.60: Backport of AC_PROG_MKDIR_P.
2N/A AC_DEFUN_ONCE([AC_PROG_MKDIR_P],
2N/A [AC_REQUIRE([AM_PROG_MKDIR_P])dnl defined by automake
2N/A MKDIR_P='$(mkdir_p)'
2N/A AC_SUBST([MKDIR_P])])])
2N/A# This definition overrides the AC_C_RESTRICT macro from autoconf 2.60..2.61,
2N/A# so that mixed use of GNU C and GNU C++ and mixed use of Sun C and Sun C++
2N/A# This definition can be removed once autoconf >= 2.62 can be assumed.
2N/Am4_if(m4_version_compare(m4_defn([m4_PACKAGE_VERSION]),[2.62]),[-1],[
2N/AAC_DEFUN([AC_C_RESTRICT],
2N/A[AC_CACHE_CHECK([for C/C++ restrict keyword], [ac_cv_c_restrict],
2N/A [ac_cv_c_restrict=no
2N/A # The order here caters to the fact that C++ does not require restrict.
2N/A for ac_kw in __restrict __restrict__ _Restrict restrict; do
2N/A AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
2N/A [[typedef int * int_ptr;
2N/A int foo (int_ptr $ac_kw ip) {
2N/A [ac_cv_c_restrict=$ac_kw])
2N/A test "$ac_cv_c_restrict" != no && break
2N/A AH_VERBATIM([restrict],
2N/A[/* Define to the equivalent of the C99 'restrict' keyword, or to
2N/A nothing if this is not supported. Do not define if restrict is
2N/A supported directly. */
2N/A/* Work around a bug in Sun C++: it does not support _Restrict, even
2N/A though the corresponding Sun C compiler does, which causes
2N/A "#define restrict _Restrict" in the previous line. Perhaps some future
2N/A version of Sun C++ will work with _Restrict; if so, it'll probably
2N/A define __RESTRICT, just as Sun C does. */
2N/A#if defined __SUNPRO_CC && !defined __RESTRICT
2N/A case $ac_cv_c_restrict in
2N/A no) AC_DEFINE([restrict], []) ;;
2N/A *) AC_DEFINE_UNQUOTED([restrict], [$ac_cv_c_restrict]) ;;
2N/A# is like AC_C_BIGENDIAN, except that it can be AC_REQUIREd.
2N/A# Note that AC_REQUIRE([AC_C_BIGENDIAN]) does not work reliably because some
2N/A# macros invoke AC_C_BIGENDIAN with arguments.
2N/AAC_DEFUN([gl_BIGENDIAN],
2N/A# gl_CACHE_VAL_SILENT(cache-id, command-to-set-it)
2N/A# is like AC_CACHE_VAL(cache-id, command-to-set-it), except that it does not
2N/A# output a spurious "(cached)" mark in the midst of other configure output.
2N/A# This macro should be used instead of AC_CACHE_VAL when it is not surrounded
2N/AAC_DEFUN([gl_CACHE_VAL_SILENT],
2N/A saved_as_echo_n="$as_echo_n"
2N/A AC_CACHE_VAL([$1], [$2])
2N/A as_echo_n="$saved_as_echo_n"