diff options
Diffstat (limited to 'm4/iconv.m4')
-rw-r--r-- | m4/iconv.m4 | 214 |
1 files changed, 214 insertions, 0 deletions
diff --git a/m4/iconv.m4 b/m4/iconv.m4 new file mode 100644 index 0000000..e2041b9 --- /dev/null +++ b/m4/iconv.m4 | |||
@@ -0,0 +1,214 @@ | |||
1 | # iconv.m4 serial 11 (gettext-0.18.1) | ||
2 | dnl Copyright (C) 2000-2002, 2007-2010 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 | dnl From Bruno Haible. | ||
8 | |||
9 | AC_DEFUN([AM_ICONV_LINKFLAGS_BODY], | ||
10 | [ | ||
11 | dnl Prerequisites of AC_LIB_LINKFLAGS_BODY. | ||
12 | AC_REQUIRE([AC_LIB_PREPARE_PREFIX]) | ||
13 | AC_REQUIRE([AC_LIB_RPATH]) | ||
14 | |||
15 | dnl Search for libiconv and define LIBICONV, LTLIBICONV and INCICONV | ||
16 | dnl accordingly. | ||
17 | AC_LIB_LINKFLAGS_BODY([iconv]) | ||
18 | ]) | ||
19 | |||
20 | AC_DEFUN([AM_ICONV_LINK], | ||
21 | [ | ||
22 | dnl Some systems have iconv in libc, some have it in libiconv (OSF/1 and | ||
23 | dnl those with the standalone portable GNU libiconv installed). | ||
24 | AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles | ||
25 | |||
26 | dnl Search for libiconv and define LIBICONV, LTLIBICONV and INCICONV | ||
27 | dnl accordingly. | ||
28 | AC_REQUIRE([AM_ICONV_LINKFLAGS_BODY]) | ||
29 | |||
30 | dnl Add $INCICONV to CPPFLAGS before performing the following checks, | ||
31 | dnl because if the user has installed libiconv and not disabled its use | ||
32 | dnl via --without-libiconv-prefix, he wants to use it. The first | ||
33 | dnl AC_TRY_LINK will then fail, the second AC_TRY_LINK will succeed. | ||
34 | am_save_CPPFLAGS="$CPPFLAGS" | ||
35 | AC_LIB_APPENDTOVAR([CPPFLAGS], [$INCICONV]) | ||
36 | |||
37 | AC_CACHE_CHECK([for iconv], [am_cv_func_iconv], [ | ||
38 | am_cv_func_iconv="no, consider installing GNU libiconv" | ||
39 | am_cv_lib_iconv=no | ||
40 | AC_TRY_LINK([#include <stdlib.h> | ||
41 | #include <iconv.h>], | ||
42 | [iconv_t cd = iconv_open("",""); | ||
43 | iconv(cd,NULL,NULL,NULL,NULL); | ||
44 | iconv_close(cd);], | ||
45 | [am_cv_func_iconv=yes]) | ||
46 | if test "$am_cv_func_iconv" != yes; then | ||
47 | am_save_LIBS="$LIBS" | ||
48 | LIBS="$LIBS $LIBICONV" | ||
49 | AC_TRY_LINK([#include <stdlib.h> | ||
50 | #include <iconv.h>], | ||
51 | [iconv_t cd = iconv_open("",""); | ||
52 | iconv(cd,NULL,NULL,NULL,NULL); | ||
53 | iconv_close(cd);], | ||
54 | [am_cv_lib_iconv=yes] | ||
55 | [am_cv_func_iconv=yes]) | ||
56 | LIBS="$am_save_LIBS" | ||
57 | fi | ||
58 | ]) | ||
59 | if test "$am_cv_func_iconv" = yes; then | ||
60 | AC_CACHE_CHECK([for working iconv], [am_cv_func_iconv_works], [ | ||
61 | dnl This tests against bugs in AIX 5.1, HP-UX 11.11, Solaris 10. | ||
62 | am_save_LIBS="$LIBS" | ||
63 | if test $am_cv_lib_iconv = yes; then | ||
64 | LIBS="$LIBS $LIBICONV" | ||
65 | fi | ||
66 | AC_TRY_RUN([ | ||
67 | #include <iconv.h> | ||
68 | #include <string.h> | ||
69 | int main () | ||
70 | { | ||
71 | /* Test against AIX 5.1 bug: Failures are not distinguishable from successful | ||
72 | returns. */ | ||
73 | { | ||
74 | iconv_t cd_utf8_to_88591 = iconv_open ("ISO8859-1", "UTF-8"); | ||
75 | if (cd_utf8_to_88591 != (iconv_t)(-1)) | ||
76 | { | ||
77 | static const char input[] = "\342\202\254"; /* EURO SIGN */ | ||
78 | char buf[10]; | ||
79 | const char *inptr = input; | ||
80 | size_t inbytesleft = strlen (input); | ||
81 | char *outptr = buf; | ||
82 | size_t outbytesleft = sizeof (buf); | ||
83 | size_t res = iconv (cd_utf8_to_88591, | ||
84 | (char **) &inptr, &inbytesleft, | ||
85 | &outptr, &outbytesleft); | ||
86 | if (res == 0) | ||
87 | return 1; | ||
88 | } | ||
89 | } | ||
90 | /* Test against Solaris 10 bug: Failures are not distinguishable from | ||
91 | successful returns. */ | ||
92 | { | ||
93 | iconv_t cd_ascii_to_88591 = iconv_open ("ISO8859-1", "646"); | ||
94 | if (cd_ascii_to_88591 != (iconv_t)(-1)) | ||
95 | { | ||
96 | static const char input[] = "\263"; | ||
97 | char buf[10]; | ||
98 | const char *inptr = input; | ||
99 | size_t inbytesleft = strlen (input); | ||
100 | char *outptr = buf; | ||
101 | size_t outbytesleft = sizeof (buf); | ||
102 | size_t res = iconv (cd_ascii_to_88591, | ||
103 | (char **) &inptr, &inbytesleft, | ||
104 | &outptr, &outbytesleft); | ||
105 | if (res == 0) | ||
106 | return 1; | ||
107 | } | ||
108 | } | ||
109 | #if 0 /* This bug could be worked around by the caller. */ | ||
110 | /* Test against HP-UX 11.11 bug: Positive return value instead of 0. */ | ||
111 | { | ||
112 | iconv_t cd_88591_to_utf8 = iconv_open ("utf8", "iso88591"); | ||
113 | if (cd_88591_to_utf8 != (iconv_t)(-1)) | ||
114 | { | ||
115 | static const char input[] = "\304rger mit b\366sen B\374bchen ohne Augenma\337"; | ||
116 | char buf[50]; | ||
117 | const char *inptr = input; | ||
118 | size_t inbytesleft = strlen (input); | ||
119 | char *outptr = buf; | ||
120 | size_t outbytesleft = sizeof (buf); | ||
121 | size_t res = iconv (cd_88591_to_utf8, | ||
122 | (char **) &inptr, &inbytesleft, | ||
123 | &outptr, &outbytesleft); | ||
124 | if ((int)res > 0) | ||
125 | return 1; | ||
126 | } | ||
127 | } | ||
128 | #endif | ||
129 | /* Test against HP-UX 11.11 bug: No converter from EUC-JP to UTF-8 is | ||
130 | provided. */ | ||
131 | if (/* Try standardized names. */ | ||
132 | iconv_open ("UTF-8", "EUC-JP") == (iconv_t)(-1) | ||
133 | /* Try IRIX, OSF/1 names. */ | ||
134 | && iconv_open ("UTF-8", "eucJP") == (iconv_t)(-1) | ||
135 | /* Try AIX names. */ | ||
136 | && iconv_open ("UTF-8", "IBM-eucJP") == (iconv_t)(-1) | ||
137 | /* Try HP-UX names. */ | ||
138 | && iconv_open ("utf8", "eucJP") == (iconv_t)(-1)) | ||
139 | return 1; | ||
140 | return 0; | ||
141 | }], [am_cv_func_iconv_works=yes], [am_cv_func_iconv_works=no], | ||
142 | [case "$host_os" in | ||
143 | aix* | hpux*) am_cv_func_iconv_works="guessing no" ;; | ||
144 | *) am_cv_func_iconv_works="guessing yes" ;; | ||
145 | esac]) | ||
146 | LIBS="$am_save_LIBS" | ||
147 | ]) | ||
148 | case "$am_cv_func_iconv_works" in | ||
149 | *no) am_func_iconv=no am_cv_lib_iconv=no ;; | ||
150 | *) am_func_iconv=yes ;; | ||
151 | esac | ||
152 | else | ||
153 | am_func_iconv=no am_cv_lib_iconv=no | ||
154 | fi | ||
155 | if test "$am_func_iconv" = yes; then | ||
156 | AC_DEFINE([HAVE_ICONV], [1], | ||
157 | [Define if you have the iconv() function and it works.]) | ||
158 | fi | ||
159 | if test "$am_cv_lib_iconv" = yes; then | ||
160 | AC_MSG_CHECKING([how to link with libiconv]) | ||
161 | AC_MSG_RESULT([$LIBICONV]) | ||
162 | else | ||
163 | dnl If $LIBICONV didn't lead to a usable library, we don't need $INCICONV | ||
164 | dnl either. | ||
165 | CPPFLAGS="$am_save_CPPFLAGS" | ||
166 | LIBICONV= | ||
167 | LTLIBICONV= | ||
168 | fi | ||
169 | AC_SUBST([LIBICONV]) | ||
170 | AC_SUBST([LTLIBICONV]) | ||
171 | ]) | ||
172 | |||
173 | dnl Define AM_ICONV using AC_DEFUN_ONCE for Autoconf >= 2.64, in order to | ||
174 | dnl avoid warnings like | ||
175 | dnl "warning: AC_REQUIRE: `AM_ICONV' was expanded before it was required". | ||
176 | dnl This is tricky because of the way 'aclocal' is implemented: | ||
177 | dnl - It requires defining an auxiliary macro whose name ends in AC_DEFUN. | ||
178 | dnl Otherwise aclocal's initial scan pass would miss the macro definition. | ||
179 | dnl - It requires a line break inside the AC_DEFUN_ONCE and AC_DEFUN expansions. | ||
180 | dnl Otherwise aclocal would emit many "Use of uninitialized value $1" | ||
181 | dnl warnings. | ||
182 | m4_define([gl_iconv_AC_DEFUN], | ||
183 | m4_version_prereq([2.64], | ||
184 | [[AC_DEFUN_ONCE( | ||
185 | [$1], [$2])]], | ||
186 | [[AC_DEFUN( | ||
187 | [$1], [$2])]])) | ||
188 | gl_iconv_AC_DEFUN([AM_ICONV], | ||
189 | [ | ||
190 | AM_ICONV_LINK | ||
191 | if test "$am_cv_func_iconv" = yes; then | ||
192 | AC_MSG_CHECKING([for iconv declaration]) | ||
193 | AC_CACHE_VAL([am_cv_proto_iconv], [ | ||
194 | AC_TRY_COMPILE([ | ||
195 | #include <stdlib.h> | ||
196 | #include <iconv.h> | ||
197 | extern | ||
198 | #ifdef __cplusplus | ||
199 | "C" | ||
200 | #endif | ||
201 | #if defined(__STDC__) || defined(__cplusplus) | ||
202 | size_t iconv (iconv_t cd, char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft); | ||
203 | #else | ||
204 | size_t iconv(); | ||
205 | #endif | ||
206 | ], [], [am_cv_proto_iconv_arg1=""], [am_cv_proto_iconv_arg1="const"]) | ||
207 | am_cv_proto_iconv="extern size_t iconv (iconv_t cd, $am_cv_proto_iconv_arg1 char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);"]) | ||
208 | am_cv_proto_iconv=`echo "[$]am_cv_proto_iconv" | tr -s ' ' | sed -e 's/( /(/'` | ||
209 | AC_MSG_RESULT([ | ||
210 | $am_cv_proto_iconv]) | ||
211 | AC_DEFINE_UNQUOTED([ICONV_CONST], [$am_cv_proto_iconv_arg1], | ||
212 | [Define as const if the declaration of iconv() needs const.]) | ||
213 | fi | ||
214 | ]) | ||