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# gnulib-common.m4 serial 3
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dnl Copyright (C) 2007 Free Software Foundation, Inc.
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# gnulib-common.m4 serial 20
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dnl Copyright (C) 2007-2010 Free Software Foundation, Inc.
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dnl This file is free software; the Free Software Foundation
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dnl gives unlimited permission to copy and/or distribute it,
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dnl with or without modifications, as long as this notice is preserved.
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# is expanded unconditionally through gnulib-tool magic.
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AC_DEFUN([gl_COMMON], [
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dnl Use AC_REQUIRE here, so that the code is expanded once only.
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AC_REQUIRE([gl_00GNULIB])
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AC_REQUIRE([gl_COMMON_BODY])
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AC_DEFUN([gl_COMMON_BODY], [
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AH_VERBATIM([isoc99_inline],
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[/* Work around a bug in Apple GCC 4.0.1 build 5465: In C99 mode, it supports
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the ISO C 99 semantics of 'extern inline' (unlike the GNU C semantics of
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earlier versions), but does not display it by setting __GNUC_STDC_INLINE__.
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__APPLE__ && __MACH__ test for MacOS X.
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__APPLE_CC__ tests for the Apple compiler and its version.
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__STDC_VERSION__ tests for the C99 mode. */
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#if defined __APPLE__ && defined __MACH__ && __APPLE_CC__ >= 5465 && !defined __cplusplus && __STDC_VERSION__ >= 199901L && !defined __GNUC_STDC_INLINE__
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# define __GNUC_STDC_INLINE__ 1
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AH_VERBATIM([unused_parameter],
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[/* Define as a marker that can be attached to declarations that might not
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be used. This helps to reduce warnings, such as from
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GCC -Wunused-parameter. */
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#if __GNUC__ >= 3 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7)
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# define _GL_UNUSED __attribute__ ((__unused__))
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/* The name _UNUSED_PARAMETER_ is an earlier spelling, although the name
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is a misnomer outside of parameter lists. */
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#define _UNUSED_PARAMETER_ _GL_UNUSED
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dnl Preparation for running test programs:
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dnl Tell glibc to write diagnostics from -D_FORTIFY_SOURCE=2 to stderr, not
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dnl to /dev/tty, so they can be redirected to log files. Such diagnostics
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dnl arise e.g., in the macros gl_PRINTF_DIRECTIVE_N, gl_SNPRINTF_DIRECTIVE_N.
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export LIBC_FATAL_STDERR_
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# gl_MODULE_INDICATOR_CONDITION
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# expands to a C preprocessor expression that evaluates to 1 or 0, depending
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# whether a gnulib module that has been requested shall be considered present
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AC_DEFUN([gl_MODULE_INDICATOR_CONDITION], [1])
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# gl_MODULE_INDICATOR_SET_VARIABLE([modulename])
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# sets the shell variable that indicates the presence of the given module to
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# a C preprocessor expression that will evaluate to 1.
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AC_DEFUN([gl_MODULE_INDICATOR_SET_VARIABLE],
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GNULIB_[]m4_translit([[$1]],
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[abcdefghijklmnopqrstuvwxyz./-],
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[ABCDEFGHIJKLMNOPQRSTUVWXYZ___])=gl_MODULE_INDICATOR_CONDITION
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# gl_MODULE_INDICATOR([modulename])
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# defines a C macro indicating the presence of the given module.
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# defines a C macro indicating the presence of the given module
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# in a location where it can be used.
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# | in lib/ | in tests/ |
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# --------------------------------------------+---------+-----------+
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# Module present among main modules: | 1 | 1 |
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# --------------------------------------------+---------+-----------+
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# Module present among tests-related modules: | 0 | 1 |
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# --------------------------------------------+---------+-----------+
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# Module not present at all: | 0 | 0 |
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# --------------------------------------------+---------+-----------+
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AC_DEFUN([gl_MODULE_INDICATOR],
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AC_DEFINE([GNULIB_]translit([$1],[abcdefghijklmnopqrstuvwxyz./-],[ABCDEFGHIJKLMNOPQRSTUVWXYZ___]), [1],
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[Define to 1 when using the gnulib module ]$1[.])
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AC_DEFINE_UNQUOTED([GNULIB_]m4_translit([[$1]],
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[abcdefghijklmnopqrstuvwxyz./-],
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[ABCDEFGHIJKLMNOPQRSTUVWXYZ___]),
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[gl_MODULE_INDICATOR_CONDITION],
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[Define to a C preprocessor expression that evaluates to 1 or 0,
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depending whether the gnulib module $1 shall be considered present.])
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# gl_MODULE_INDICATOR_FOR_TESTS([modulename])
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# defines a C macro indicating the presence of the given module
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# in lib or tests. This is useful to determine whether the module
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# | in lib/ | in tests/ |
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# --------------------------------------------+---------+-----------+
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# Module present among main modules: | 1 | 1 |
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# --------------------------------------------+---------+-----------+
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# Module present among tests-related modules: | 1 | 1 |
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# --------------------------------------------+---------+-----------+
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# Module not present at all: | 0 | 0 |
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# --------------------------------------------+---------+-----------+
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AC_DEFUN([gl_MODULE_INDICATOR_FOR_TESTS],
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AC_DEFINE([GNULIB_TEST_]m4_translit([[$1]],
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[abcdefghijklmnopqrstuvwxyz./-],
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[ABCDEFGHIJKLMNOPQRSTUVWXYZ___]), [1],
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[Define to 1 when the gnulib module $1 should be tested.])
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# is a backport of autoconf-2.59c's m4_foreach_w.
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# Remove this macro when we can assume autoconf >= 2.60.
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m4_ifndef([m4_foreach_w],
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[m4_define([m4_foreach_w],
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[m4_foreach([$1], m4_split(m4_normalize([$2]), [ ]), [$3])])])
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# AS_VAR_IF(VAR, VALUE, [IF-MATCH], [IF-NOT-MATCH])
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# ----------------------------------------------------
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# Backport of autoconf-2.63b's macro.
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# Remove this macro when we can assume autoconf >= 2.64.
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m4_ifndef([AS_VAR_IF],
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[m4_define([AS_VAR_IF],
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[AS_IF([test x"AS_VAR_GET([$1])" = x""$2], [$3], [$4])])])
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# is a backport of autoconf-2.60's AC_PROG_MKDIR_P.
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# Remove this macro when we can assume autoconf >= 2.60.
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m4_ifdef([AC_PROG_MKDIR_P], [], [
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AC_DEFUN([AC_PROG_MKDIR_P],
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# is a backport of autoconf-2.60's AC_PROG_MKDIR_P, with a fix
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# for interoperability with automake-1.9.6 from autoconf-2.62.
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# Remove this macro when we can assume autoconf >= 2.62 or
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# autoconf >= 2.60 && automake >= 1.10.
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m4_ifdef([AC_PROG_MKDIR_P], [
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dnl For automake-1.9.6 && autoconf < 2.62: Ensure MKDIR_P is AC_SUBSTed.
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m4_define([AC_PROG_MKDIR_P],
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m4_defn([AC_PROG_MKDIR_P])[
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AC_SUBST([MKDIR_P])])], [
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dnl For autoconf < 2.60: Backport of AC_PROG_MKDIR_P.
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AC_DEFUN_ONCE([AC_PROG_MKDIR_P],
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[AC_REQUIRE([AM_PROG_MKDIR_P])dnl defined by automake
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MKDIR_P='$(mkdir_p)'
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AC_SUBST([MKDIR_P])])])