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comparison m4/gnulib-common.m4 @ 267:bec6d2480f08 2.6

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Added add'l generated files for release
author lost
date Tue, 22 Dec 2009 05:33:32 +0000
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1 # gnulib-common.m4 serial 11
2 dnl Copyright (C) 2007-2009 Free Software Foundation, Inc.
3 dnl This file is free software; the Free Software Foundation
4 dnl gives unlimited permission to copy and/or distribute it,
5 dnl with or without modifications, as long as this notice is preserved.
6
7 # gl_COMMON
8 # is expanded unconditionally through gnulib-tool magic.
9 AC_DEFUN([gl_COMMON], [
10 dnl Use AC_REQUIRE here, so that the code is expanded once only.
11 AC_REQUIRE([gl_00GNULIB])
12 AC_REQUIRE([gl_COMMON_BODY])
13 ])
14 AC_DEFUN([gl_COMMON_BODY], [
15 AH_VERBATIM([isoc99_inline],
16 [/* Work around a bug in Apple GCC 4.0.1 build 5465: In C99 mode, it supports
17 the ISO C 99 semantics of 'extern inline' (unlike the GNU C semantics of
18 earlier versions), but does not display it by setting __GNUC_STDC_INLINE__.
19 __APPLE__ && __MACH__ test for MacOS X.
20 __APPLE_CC__ tests for the Apple compiler and its version.
21 __STDC_VERSION__ tests for the C99 mode. */
22 #if defined __APPLE__ && defined __MACH__ && __APPLE_CC__ >= 5465 && !defined __cplusplus && __STDC_VERSION__ >= 199901L && !defined __GNUC_STDC_INLINE__
23 # define __GNUC_STDC_INLINE__ 1
24 #endif])
25 AH_VERBATIM([unused_parameter],
26 [/* Define as a marker that can be attached to function parameter declarations
27 for parameters that are not used. This helps to reduce warnings, such as
28 from GCC -Wunused-parameter. */
29 #if __GNUC__ >= 3 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7)
30 # define _UNUSED_PARAMETER_ __attribute__ ((__unused__))
31 #else
32 # define _UNUSED_PARAMETER_
33 #endif
34 ])
35 ])
36
37 # gl_MODULE_INDICATOR([modulename])
38 # defines a C macro indicating the presence of the given module.
39 AC_DEFUN([gl_MODULE_INDICATOR],
40 [
41 AC_DEFINE([GNULIB_]translit([$1],[abcdefghijklmnopqrstuvwxyz./-],[ABCDEFGHIJKLMNOPQRSTUVWXYZ___]), [1],
42 [Define to 1 when using the gnulib module ]$1[.])
43 ])
44
45 # m4_foreach_w
46 # is a backport of autoconf-2.59c's m4_foreach_w.
47 # Remove this macro when we can assume autoconf >= 2.60.
48 m4_ifndef([m4_foreach_w],
49 [m4_define([m4_foreach_w],
50 [m4_foreach([$1], m4_split(m4_normalize([$2]), [ ]), [$3])])])
51
52 # AC_PROG_MKDIR_P
53 # is a backport of autoconf-2.60's AC_PROG_MKDIR_P.
54 # Remove this macro when we can assume autoconf >= 2.60.
55 m4_ifdef([AC_PROG_MKDIR_P], [], [
56 AC_DEFUN_ONCE([AC_PROG_MKDIR_P],
57 [AC_REQUIRE([AM_PROG_MKDIR_P])dnl defined by automake
58 MKDIR_P='$(mkdir_p)'
59 AC_SUBST([MKDIR_P])])])
60
61 # AC_C_RESTRICT
62 # This definition overrides the AC_C_RESTRICT macro from autoconf 2.60..2.61,
63 # so that mixed use of GNU C and GNU C++ and mixed use of Sun C and Sun C++
64 # works.
65 # This definition can be removed once autoconf >= 2.62 can be assumed.
66 AC_DEFUN([AC_C_RESTRICT],
67 [AC_CACHE_CHECK([for C/C++ restrict keyword], [ac_cv_c_restrict],
68 [ac_cv_c_restrict=no
69 # The order here caters to the fact that C++ does not require restrict.
70 for ac_kw in __restrict __restrict__ _Restrict restrict; do
71 AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
72 [[typedef int * int_ptr;
73 int foo (int_ptr $ac_kw ip) {
74 return ip[0];
75 }]],
76 [[int s[1];
77 int * $ac_kw t = s;
78 t[0] = 0;
79 return foo(t)]])],
80 [ac_cv_c_restrict=$ac_kw])
81 test "$ac_cv_c_restrict" != no && break
82 done
83 ])
84 AH_VERBATIM([restrict],
85 [/* Define to the equivalent of the C99 'restrict' keyword, or to
86 nothing if this is not supported. Do not define if restrict is
87 supported directly. */
88 #undef restrict
89 /* Work around a bug in Sun C++: it does not support _Restrict, even
90 though the corresponding Sun C compiler does, which causes
91 "#define restrict _Restrict" in the previous line. Perhaps some future
92 version of Sun C++ will work with _Restrict; if so, it'll probably
93 define __RESTRICT, just as Sun C does. */
94 #if defined __SUNPRO_CC && !defined __RESTRICT
95 # define _Restrict
96 #endif])
97 case $ac_cv_c_restrict in
98 restrict) ;;
99 no) AC_DEFINE([restrict], []) ;;
100 *) AC_DEFINE_UNQUOTED([restrict], [$ac_cv_c_restrict]) ;;
101 esac
102 ])
103
104 # gl_BIGENDIAN
105 # is like AC_C_BIGENDIAN, except that it can be AC_REQUIREd.
106 # Note that AC_REQUIRE([AC_C_BIGENDIAN]) does not work reliably because some
107 # macros invoke AC_C_BIGENDIAN with arguments.
108 AC_DEFUN([gl_BIGENDIAN],
109 [
110 AC_C_BIGENDIAN
111 ])
112
113 # gl_CACHE_VAL_SILENT(cache-id, command-to-set-it)
114 # is like AC_CACHE_VAL(cache-id, command-to-set-it), except that it does not
115 # output a spurious "(cached)" mark in the midst of other configure output.
116 # This macro should be used instead of AC_CACHE_VAL when it is not surrounded
117 # by an AC_MSG_CHECKING/AC_MSG_RESULT pair.
118 AC_DEFUN([gl_CACHE_VAL_SILENT],
119 [
120 saved_as_echo_n="$as_echo_n"
121 as_echo_n=':'
122 AC_CACHE_VAL([$1], [$2])
123 as_echo_n="$saved_as_echo_n"
124 ])