Commit | Line | Data |
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e47afdf2 JF |
1 | dnl From Bruno Haible. |
2 | AC_DEFUN([AM_ICONV], | |
3 | [ | |
4 | dnl Some systems have iconv in libc, some have it in libiconv (OSF/1 and | |
5 | dnl those with the standalone portable GNU libiconv installed). | |
6 | ||
7 | AC_ARG_WITH([libiconv], | |
8 | [ --with-libiconv=DIR search for libiconv in DIR/include and DIR/lib], [ | |
9 | for dir in `echo "$withval" | tr : ' '`; do | |
10 | if test -d $dir/include; then CPPFLAGS="$CPPFLAGS -I$dir/include"; fi | |
11 | if test -d $dir/lib; then LDFLAGS="$LDFLAGS -L$dir/lib"; fi | |
12 | done | |
13 | ]) | |
14 | ||
15 | AC_CACHE_CHECK(for iconv, am_cv_func_iconv, [ | |
16 | am_cv_func_iconv="no, consider installing GNU libiconv" | |
17 | am_cv_lib_iconv=no | |
18 | AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <stdlib.h> | |
19 | #include <iconv.h>]], [[iconv_t cd = iconv_open("",""); | |
20 | iconv(cd,NULL,NULL,NULL,NULL); | |
21 | iconv_close(cd);]])],[am_cv_func_iconv=yes],[]) | |
22 | if test "$am_cv_func_iconv" != yes; then | |
23 | am_save_LIBS="$LIBS" | |
24 | LIBS="$LIBS -liconv" | |
25 | AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <stdlib.h> | |
26 | #include <iconv.h>]], [[iconv_t cd = iconv_open("",""); | |
27 | iconv(cd,NULL,NULL,NULL,NULL); | |
28 | iconv_close(cd);]])],[am_cv_lib_iconv=yes | |
29 | am_cv_func_iconv=yes],[]) | |
30 | LIBS="$am_save_LIBS" | |
31 | fi | |
32 | ]) | |
33 | if test "$am_cv_func_iconv" = yes; then | |
34 | AC_DEFINE(HAVE_ICONV, 1, [Define if you have the iconv() function.]) | |
35 | AC_MSG_CHECKING([for iconv declaration]) | |
36 | AC_CACHE_VAL(am_cv_proto_iconv, [ | |
37 | AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ | |
38 | #include <stdlib.h> | |
39 | #include <iconv.h> | |
40 | extern | |
41 | #ifdef __cplusplus | |
42 | "C" | |
43 | #endif | |
44 | #if defined(__STDC__) || defined(__cplusplus) | |
45 | size_t iconv (iconv_t cd, char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft); | |
46 | #else | |
47 | size_t iconv(); | |
48 | #endif | |
49 | ]], [[]])],[am_cv_proto_iconv_arg1=""],[am_cv_proto_iconv_arg1="const"]) | |
50 | am_cv_proto_iconv="extern size_t iconv (iconv_t cd, $am_cv_proto_iconv_arg1 char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);"]) | |
51 | am_cv_proto_iconv=`echo "[$]am_cv_proto_iconv" | tr -s ' ' | sed -e 's/( /(/'` | |
52 | AC_MSG_RESULT([$]{ac_t:- | |
53 | }[$]am_cv_proto_iconv) | |
54 | AC_DEFINE_UNQUOTED(ICONV_CONST, $am_cv_proto_iconv_arg1, | |
55 | [Define as const if the declaration of iconv() needs const.]) | |
56 | else | |
57 | AC_MSG_FAILURE([iconv() not found. Please install libiconv and use --with-libiconv=/path/to/dir.],[1]) | |
58 | fi | |
59 | if test "$am_cv_lib_iconv" = yes; then | |
60 | LIBS="$LIBS -liconv" | |
61 | fi | |
62 | ]) |