4 dnl From codeset.m4 (in libcharset):
9 AC_DEFUN(jm_LANGINFO_CODESET,
11 AC_CHECK_HEADERS(langinfo.h)
12 AC_CHECK_FUNCS(nl_langinfo)
14 AC_CACHE_CHECK([for nl_langinfo and CODESET], jm_cv_langinfo_codeset,
15 [AC_TRY_LINK([#include <langinfo.h>],
16 [char* cs = nl_langinfo(CODESET);],
17 jm_cv_langinfo_codeset=yes,
18 jm_cv_langinfo_codeset=no)
20 if test $jm_cv_langinfo_codeset = yes; then
21 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
22 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
26 dnl From glibc21.m4 (in libcharset):
29 # Test for the GNU C Library, version 2.1 or newer.
34 AC_CACHE_CHECK(whether we are using the GNU C Library 2.1 or newer,
35 ac_cv_gnu_library_2_1,
36 [AC_EGREP_CPP([Lucky GNU user],
39 #ifdef __GNU_LIBRARY__
40 #if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 1) || (__GLIBC__ > 2)
45 ac_cv_gnu_library_2_1=yes,
46 ac_cv_gnu_library_2_1=no)
50 GLIBC21="$ac_cv_gnu_library_2_1"
57 dnl From Bruno Haible.
61 dnl Some systems have iconv in libc, some have it in libiconv (OSF/1 and
62 dnl those with the standalone portable GNU libiconv installed).
64 AC_ARG_WITH([libiconv-prefix],
65 [ --with-libiconv-prefix=DIR search for libiconv in DIR/include and DIR/lib], [
66 # Addition Peter Verthez
67 ICONV_PATH=`echo "$withval" | tr : '/bin'`
68 ICONV_PATH="$ICONV_PATH/bin"
72 for dir in `echo "$withval" | tr : ' '`; do
73 if test -d $dir/include; then CPPFLAGS="$CPPFLAGS -I$dir/include"; fi
74 if test -d $dir/lib; then LDFLAGS="$LDFLAGS -L$dir/lib"; fi
78 AC_CACHE_CHECK(for iconv, am_cv_func_iconv, [
79 am_cv_func_iconv="no, consider installing GNU libiconv"
81 AC_TRY_LINK([#include <stdlib.h>
83 [iconv_t cd = iconv_open("","");
84 iconv(cd,NULL,NULL,NULL,NULL);
87 if test "$am_cv_func_iconv" != yes; then
90 AC_TRY_LINK([#include <stdlib.h>
92 [iconv_t cd = iconv_open("","");
93 iconv(cd,NULL,NULL,NULL,NULL);
100 if test "$am_cv_func_iconv" = yes; then
101 AC_DEFINE(HAVE_ICONV, 1, [Define if you have the iconv() function.])
102 AC_MSG_CHECKING([for iconv declaration])
103 AC_CACHE_VAL(am_cv_proto_iconv, [
111 #if defined(__STDC__) || defined(__cplusplus)
112 size_t iconv (iconv_t cd, char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);
116 ], [], am_cv_proto_iconv_arg1="", am_cv_proto_iconv_arg1="const")
117 am_cv_proto_iconv="extern size_t iconv (iconv_t cd, $am_cv_proto_iconv_arg1 char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);"])
118 am_cv_proto_iconv=`echo "[$]am_cv_proto_iconv" | tr -s ' ' | sed -e 's/( /(/'`
119 AC_MSG_RESULT([$]{ac_t:-
120 }[$]am_cv_proto_iconv)
121 AC_DEFINE_UNQUOTED(ICONV_CONST, $am_cv_proto_iconv_arg1,
122 [Define as const if the declaration of iconv() needs const.])
125 if test "$am_cv_lib_iconv" = yes; then
133 dnl Checks whether iconv is coming from glibc, defines USE_GLIBC_ICONV if so
134 dnl The variable $is_glibc_iconv contains yes or no
135 AC_DEFUN(AC_GLIBC_ICONV, [
136 AC_CACHE_CHECK(for the GNU C Library iconv implementation, is_glibc_iconv, [
143 ], is_glibc_iconv=yes, is_glibc_iconv=no)
145 if test "$is_glibc_iconv" = yes; then
146 AC_DEFINE(USE_GLIBC_ICONV,1,
147 [Define if the GNU implementation of iconv in glibc is used])
151 dnl AC_LIBICONV_HAS_ANSEL()
152 dnl Checks whether libiconv has ANSEL support
153 dnl The variable $is_ansel_supported contains yes or no
154 AC_DEFUN(AC_LIBICONV_HAS_ANSEL, [
155 AC_CACHE_CHECK(for ANSEL support in libiconv, is_ansel_supported, [
157 LIBS="$LIBS $LIBICONV"
161 iconv_t cd = iconv_open("UTF-8","ANSEL");
162 return (cd == (iconv_t)-1);
165 is_ansel_supported=yes,
166 is_ansel_supported=no,
167 is_ansel_supported=no)