HCoop / bpt / guile.git / blame
| Commit | Line | Data |
|---|---|---|
| e65fc94b LC |
1 | /* A substitute for ISO C99 <wchar.h>, for platforms that have issues. |
| 2 | ||
| 3 | Copyright (C) 2007-2008 Free Software Foundation, Inc. | |
| 4 | ||
| 5 | This program is free software; you can redistribute it and/or modify | |
| 6 | it under the terms of the GNU Lesser General Public License as published by | |
| 7 | the Free Software Foundation; either version 2, or (at your option) | |
| 8 | any later version. | |
| 9 | ||
| 10 | This program is distributed in the hope that it will be useful, | |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 13 | GNU Lesser General Public License for more details. | |
| 14 | ||
| 15 | You should have received a copy of the GNU Lesser General Public License | |
| 16 | along with this program; if not, write to the Free Software Foundation, | |
| 17 | Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ | |
| 18 | ||
| 19 | /* Written by Eric Blake. */ | |
| 20 | ||
| 21 | /* | |
| 22 | * ISO C 99 <wchar.h> for platforms that have issues. | |
| 23 | * <http://www.opengroup.org/susv3xbd/wchar.h.html> | |
| 24 | * | |
| 25 | * For now, this just ensures proper prerequisite inclusion order and | |
| 26 | * the declaration of wcwidth(). | |
| 27 | */ | |
| 28 | ||
| 29 | @PRAGMA_SYSTEM_HEADER@ | |
| 30 | ||
| 31 | #ifdef __need_mbstate_t | |
| 32 | /* Special invocation convention inside uClibc header files. */ | |
| 33 | ||
| 34 | #@INCLUDE_NEXT@ @NEXT_WCHAR_H@ | |
| 35 | ||
| 36 | #else | |
| 37 | /* Normal invocation convention. */ | |
| 38 | ||
| 39 | #ifndef _GL_WCHAR_H | |
| 40 | ||
| 41 | /* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before | |
| 42 | <wchar.h>. | |
| 43 | BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be | |
| 44 | included before <wchar.h>. */ | |
| 45 | #include <stddef.h> | |
| 46 | #include <stdio.h> | |
| 47 | #include <time.h> | |
| 48 | ||
| 49 | /* Include the original <wchar.h> if it exists. | |
| 50 | Some builds of uClibc lack it. */ | |
| 51 | /* The include_next requires a split double-inclusion guard. */ | |
| 52 | #if @HAVE_WCHAR_H@ | |
| 53 | # @INCLUDE_NEXT@ @NEXT_WCHAR_H@ | |
| 54 | #endif | |
| 55 | ||
| 56 | #ifndef _GL_WCHAR_H | |
| 57 | #define _GL_WCHAR_H | |
| 58 | ||
| 59 | /* The definition of GL_LINK_WARNING is copied here. */ | |
| 60 | ||
| 61 | #ifdef __cplusplus | |
| 62 | extern "C" { | |
| 63 | #endif | |
| 64 | ||
| 65 | ||
| 66 | /* Return the number of screen columns needed for WC. */ | |
| 67 | #if @GNULIB_WCWIDTH@ | |
| 68 | # if @REPLACE_WCWIDTH@ | |
| 69 | # undef wcwidth | |
| 70 | # define wcwidth rpl_wcwidth | |
| 71 | extern int wcwidth (wchar_t); | |
| 72 | # else | |
| 73 | # if !defined wcwidth && !@HAVE_DECL_WCWIDTH@ | |
| 74 | /* wcwidth exists but is not declared. */ | |
| 75 | extern int wcwidth (int /* actually wchar_t */); | |
| 76 | # endif | |
| 77 | # endif | |
| 78 | #elif defined GNULIB_POSIXCHECK | |
| 79 | # undef wcwidth | |
| 80 | # define wcwidth(w) \ | |
| 81 | (GL_LINK_WARNING ("wcwidth is unportable - " \ | |
| 82 | "use gnulib module wcwidth for portability"), \ | |
| 83 | wcwidth (w)) | |
| 84 | #endif | |
| 85 | ||
| 86 | ||
| 87 | #ifdef __cplusplus | |
| 88 | } | |
| 89 | #endif | |
| 90 | ||
| 91 | #endif /* _GL_WCHAR_H */ | |
| 92 | #endif /* _GL_WCHAR_H */ | |
| 93 | #endif |