Commit | Line | Data |
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e65fc94b LC |
1 | dnl A placeholder for ISO C99 <wchar.h>, for platforms that have issues. |
2 | ||
aa7a939c | 3 | dnl Copyright (C) 2007-2008 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 | ||
4a462e35 | 10 | # wchar.m4 serial 22 |
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 | ||
30 | if test $gl_cv_header_wchar_h_standalone != yes || test $gt_cv_c_wint_t != yes; then | |
e65fc94b LC |
31 | WCHAR_H=wchar.h |
32 | fi | |
33 | ||
34 | dnl Prepare for creating substitute <wchar.h>. | |
35 | dnl Do it always: WCHAR_H may be empty here but can be set later. | |
36 | dnl Check for <wchar.h> (missing in Linux uClibc when built without wide | |
37 | dnl character support). | |
38 | AC_CHECK_HEADERS_ONCE([wchar.h]) | |
39 | if test $ac_cv_header_wchar_h = yes; then | |
40 | HAVE_WCHAR_H=1 | |
41 | else | |
42 | HAVE_WCHAR_H=0 | |
43 | fi | |
44 | AC_SUBST([HAVE_WCHAR_H]) | |
45 | gl_CHECK_NEXT_HEADERS([wchar.h]) | |
46 | ]) | |
47 | ||
aa7a939c LC |
48 | dnl Unconditionally enables the replacement of <wchar.h>. |
49 | AC_DEFUN([gl_REPLACE_WCHAR_H], | |
50 | [ | |
51 | AC_REQUIRE([gl_WCHAR_H_DEFAULTS]) | |
52 | WCHAR_H=wchar.h | |
53 | ]) | |
54 | ||
e65fc94b LC |
55 | AC_DEFUN([gl_WCHAR_MODULE_INDICATOR], |
56 | [ | |
57 | dnl Use AC_REQUIRE here, so that the default settings are expanded once only. | |
58 | AC_REQUIRE([gl_WCHAR_H_DEFAULTS]) | |
59 | GNULIB_[]m4_translit([$1],[abcdefghijklmnopqrstuvwxyz./-],[ABCDEFGHIJKLMNOPQRSTUVWXYZ___])=1 | |
60 | ]) | |
61 | ||
62 | AC_DEFUN([gl_WCHAR_H_DEFAULTS], | |
63 | [ | |
4a462e35 NJ |
64 | GNULIB_BTOWC=0; AC_SUBST([GNULIB_BTOWC]) |
65 | GNULIB_WCTOB=0; AC_SUBST([GNULIB_WCTOB]) | |
66 | GNULIB_MBSINIT=0; AC_SUBST([GNULIB_MBSINIT]) | |
67 | GNULIB_MBRTOWC=0; AC_SUBST([GNULIB_MBRTOWC]) | |
68 | GNULIB_MBRLEN=0; AC_SUBST([GNULIB_MBRLEN]) | |
69 | GNULIB_MBSRTOWCS=0; AC_SUBST([GNULIB_MBSRTOWCS]) | |
70 | GNULIB_MBSNRTOWCS=0; AC_SUBST([GNULIB_MBSNRTOWCS]) | |
71 | GNULIB_WCRTOMB=0; AC_SUBST([GNULIB_WCRTOMB]) | |
72 | GNULIB_WCSRTOMBS=0; AC_SUBST([GNULIB_WCSRTOMBS]) | |
73 | GNULIB_WCSNRTOMBS=0; AC_SUBST([GNULIB_WCSNRTOMBS]) | |
74 | GNULIB_WCWIDTH=0; AC_SUBST([GNULIB_WCWIDTH]) | |
e65fc94b | 75 | dnl Assume proper GNU behavior unless another module says otherwise. |
4a462e35 NJ |
76 | HAVE_BTOWC=1; AC_SUBST([HAVE_BTOWC]) |
77 | HAVE_MBSINIT=1; AC_SUBST([HAVE_MBSINIT]) | |
78 | HAVE_MBRTOWC=1; AC_SUBST([HAVE_MBRTOWC]) | |
79 | HAVE_MBRLEN=1; AC_SUBST([HAVE_MBRLEN]) | |
80 | HAVE_MBSRTOWCS=1; AC_SUBST([HAVE_MBSRTOWCS]) | |
81 | HAVE_MBSNRTOWCS=1; AC_SUBST([HAVE_MBSNRTOWCS]) | |
82 | HAVE_WCRTOMB=1; AC_SUBST([HAVE_WCRTOMB]) | |
83 | HAVE_WCSRTOMBS=1; AC_SUBST([HAVE_WCSRTOMBS]) | |
84 | HAVE_WCSNRTOMBS=1; AC_SUBST([HAVE_WCSNRTOMBS]) | |
85 | HAVE_DECL_WCTOB=1; AC_SUBST([HAVE_DECL_WCTOB]) | |
e65fc94b | 86 | HAVE_DECL_WCWIDTH=1; AC_SUBST([HAVE_DECL_WCWIDTH]) |
4a462e35 NJ |
87 | REPLACE_MBSTATE_T=0; AC_SUBST([REPLACE_MBSTATE_T]) |
88 | REPLACE_BTOWC=0; AC_SUBST([REPLACE_BTOWC]) | |
89 | REPLACE_WCTOB=0; AC_SUBST([REPLACE_WCTOB]) | |
90 | REPLACE_MBSINIT=0; AC_SUBST([REPLACE_MBSINIT]) | |
91 | REPLACE_MBRTOWC=0; AC_SUBST([REPLACE_MBRTOWC]) | |
92 | REPLACE_MBRLEN=0; AC_SUBST([REPLACE_MBRLEN]) | |
93 | REPLACE_MBSRTOWCS=0; AC_SUBST([REPLACE_MBSRTOWCS]) | |
94 | REPLACE_MBSNRTOWCS=0;AC_SUBST([REPLACE_MBSNRTOWCS]) | |
95 | REPLACE_WCRTOMB=0; AC_SUBST([REPLACE_WCRTOMB]) | |
96 | REPLACE_WCSRTOMBS=0; AC_SUBST([REPLACE_WCSRTOMBS]) | |
e65fc94b | 97 | REPLACE_WCWIDTH=0; AC_SUBST([REPLACE_WCWIDTH]) |
aa7a939c | 98 | WCHAR_H=''; AC_SUBST([WCHAR_H]) |
e65fc94b | 99 | ]) |