Commit | Line | Data |
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e65fc94b LC |
1 | dnl A placeholder for ISO C99 <wchar.h>, for platforms that have issues. |
2 | ||
f240aacb | 3 | dnl Copyright (C) 2007-2009 Free Software Foundation, Inc. |
e65fc94b LC |
4 | dnl This file is free software; the Free Software Foundation |
5 | dnl gives unlimited permission to copy and/or distribute it, | |
6 | dnl with or without modifications, as long as this notice is preserved. | |
7 | ||
8 | dnl Written by Eric Blake. | |
9 | ||
414e4441 | 10 | # wchar.m4 serial 26 |
e65fc94b LC |
11 | |
12 | AC_DEFUN([gl_WCHAR_H], | |
13 | [ | |
14 | AC_REQUIRE([gl_WCHAR_H_DEFAULTS]) | |
15 | AC_CACHE_CHECK([whether <wchar.h> is standalone], | |
16 | [gl_cv_header_wchar_h_standalone], | |
17 | [AC_COMPILE_IFELSE([[#include <wchar.h> | |
18 | wchar_t w;]], | |
19 | [gl_cv_header_wchar_h_standalone=yes], | |
20 | [gl_cv_header_wchar_h_standalone=no])]) | |
aa7a939c LC |
21 | |
22 | AC_REQUIRE([gt_TYPE_WINT_T]) | |
23 | if test $gt_cv_c_wint_t = yes; then | |
24 | HAVE_WINT_T=1 | |
25 | else | |
26 | HAVE_WINT_T=0 | |
27 | fi | |
28 | AC_SUBST([HAVE_WINT_T]) | |
29 | ||
8912421c LC |
30 | dnl If <stddef.h> is replaced, then <wchar.h> must also be replaced. |
31 | AC_REQUIRE([gl_STDDEF_H]) | |
32 | ||
33 | if test $gl_cv_header_wchar_h_standalone != yes || test $gt_cv_c_wint_t != yes || test -n "$STDDEF_H"; then | |
e65fc94b LC |
34 | WCHAR_H=wchar.h |
35 | fi | |
36 | ||
37 | dnl Prepare for creating substitute <wchar.h>. | |
38 | dnl Do it always: WCHAR_H may be empty here but can be set later. | |
39 | dnl Check for <wchar.h> (missing in Linux uClibc when built without wide | |
40 | dnl character support). | |
41 | AC_CHECK_HEADERS_ONCE([wchar.h]) | |
42 | if test $ac_cv_header_wchar_h = yes; then | |
43 | HAVE_WCHAR_H=1 | |
44 | else | |
45 | HAVE_WCHAR_H=0 | |
46 | fi | |
47 | AC_SUBST([HAVE_WCHAR_H]) | |
414e4441 LC |
48 | dnl Execute this unconditionally, because WCHAR_H may be set by other |
49 | dnl modules, after this code is executed. | |
e65fc94b LC |
50 | gl_CHECK_NEXT_HEADERS([wchar.h]) |
51 | ]) | |
52 | ||
aa7a939c LC |
53 | dnl Unconditionally enables the replacement of <wchar.h>. |
54 | AC_DEFUN([gl_REPLACE_WCHAR_H], | |
55 | [ | |
56 | AC_REQUIRE([gl_WCHAR_H_DEFAULTS]) | |
57 | WCHAR_H=wchar.h | |
58 | ]) | |
59 | ||
e65fc94b LC |
60 | AC_DEFUN([gl_WCHAR_MODULE_INDICATOR], |
61 | [ | |
62 | dnl Use AC_REQUIRE here, so that the default settings are expanded once only. | |
63 | AC_REQUIRE([gl_WCHAR_H_DEFAULTS]) | |
64 | GNULIB_[]m4_translit([$1],[abcdefghijklmnopqrstuvwxyz./-],[ABCDEFGHIJKLMNOPQRSTUVWXYZ___])=1 | |
65 | ]) | |
66 | ||
67 | AC_DEFUN([gl_WCHAR_H_DEFAULTS], | |
68 | [ | |
4a462e35 NJ |
69 | GNULIB_BTOWC=0; AC_SUBST([GNULIB_BTOWC]) |
70 | GNULIB_WCTOB=0; AC_SUBST([GNULIB_WCTOB]) | |
71 | GNULIB_MBSINIT=0; AC_SUBST([GNULIB_MBSINIT]) | |
72 | GNULIB_MBRTOWC=0; AC_SUBST([GNULIB_MBRTOWC]) | |
73 | GNULIB_MBRLEN=0; AC_SUBST([GNULIB_MBRLEN]) | |
74 | GNULIB_MBSRTOWCS=0; AC_SUBST([GNULIB_MBSRTOWCS]) | |
75 | GNULIB_MBSNRTOWCS=0; AC_SUBST([GNULIB_MBSNRTOWCS]) | |
76 | GNULIB_WCRTOMB=0; AC_SUBST([GNULIB_WCRTOMB]) | |
77 | GNULIB_WCSRTOMBS=0; AC_SUBST([GNULIB_WCSRTOMBS]) | |
78 | GNULIB_WCSNRTOMBS=0; AC_SUBST([GNULIB_WCSNRTOMBS]) | |
79 | GNULIB_WCWIDTH=0; AC_SUBST([GNULIB_WCWIDTH]) | |
e65fc94b | 80 | dnl Assume proper GNU behavior unless another module says otherwise. |
f240aacb LC |
81 | HAVE_BTOWC=1; AC_SUBST([HAVE_BTOWC]) |
82 | HAVE_MBSINIT=1; AC_SUBST([HAVE_MBSINIT]) | |
83 | HAVE_MBRTOWC=1; AC_SUBST([HAVE_MBRTOWC]) | |
84 | HAVE_MBRLEN=1; AC_SUBST([HAVE_MBRLEN]) | |
85 | HAVE_MBSRTOWCS=1; AC_SUBST([HAVE_MBSRTOWCS]) | |
86 | HAVE_MBSNRTOWCS=1; AC_SUBST([HAVE_MBSNRTOWCS]) | |
87 | HAVE_WCRTOMB=1; AC_SUBST([HAVE_WCRTOMB]) | |
88 | HAVE_WCSRTOMBS=1; AC_SUBST([HAVE_WCSRTOMBS]) | |
89 | HAVE_WCSNRTOMBS=1; AC_SUBST([HAVE_WCSNRTOMBS]) | |
90 | HAVE_DECL_WCTOB=1; AC_SUBST([HAVE_DECL_WCTOB]) | |
91 | HAVE_DECL_WCWIDTH=1; AC_SUBST([HAVE_DECL_WCWIDTH]) | |
92 | REPLACE_MBSTATE_T=0; AC_SUBST([REPLACE_MBSTATE_T]) | |
93 | REPLACE_BTOWC=0; AC_SUBST([REPLACE_BTOWC]) | |
94 | REPLACE_WCTOB=0; AC_SUBST([REPLACE_WCTOB]) | |
95 | REPLACE_MBSINIT=0; AC_SUBST([REPLACE_MBSINIT]) | |
96 | REPLACE_MBRTOWC=0; AC_SUBST([REPLACE_MBRTOWC]) | |
97 | REPLACE_MBRLEN=0; AC_SUBST([REPLACE_MBRLEN]) | |
98 | REPLACE_MBSRTOWCS=0; AC_SUBST([REPLACE_MBSRTOWCS]) | |
99 | REPLACE_MBSNRTOWCS=0; AC_SUBST([REPLACE_MBSNRTOWCS]) | |
100 | REPLACE_WCRTOMB=0; AC_SUBST([REPLACE_WCRTOMB]) | |
101 | REPLACE_WCSRTOMBS=0; AC_SUBST([REPLACE_WCSRTOMBS]) | |
102 | REPLACE_WCSNRTOMBS=0; AC_SUBST([REPLACE_WCSNRTOMBS]) | |
103 | REPLACE_WCWIDTH=0; AC_SUBST([REPLACE_WCWIDTH]) | |
104 | WCHAR_H=''; AC_SUBST([WCHAR_H]) | |
e65fc94b | 105 | ]) |