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1#serial AM2
2
3dnl From Bruno Haible.
4
5AC_DEFUN([AM_ICONV],
6[
7 dnl Some systems have iconv in libc, some have it in libiconv (OSF/1 and
8 dnl those with the standalone portable GNU libiconv installed).
9
10 AC_ARG_WITH([libiconv-prefix],
11[ --with-libiconv-prefix=DIR search for libiconv in DIR/include and DIR/lib], [
12 for dir in `echo "$withval" | tr : ' '`; do
13 if test -d $dir/include; then CPPFLAGS="$CPPFLAGS -I$dir/include"; fi
14 if test -d $dir/lib; then LDFLAGS="$LDFLAGS -L$dir/lib"; fi
15 done
16 ])
17
18 AC_CACHE_CHECK(for iconv, am_cv_func_iconv, [
19 am_cv_func_iconv="no, consider installing GNU libiconv"
20 am_cv_lib_iconv=no
21 AC_TRY_LINK([#include <stdlib.h>
22#include <iconv.h>],
23 [iconv_t cd = iconv_open("","");
24 iconv(cd,NULL,NULL,NULL,NULL);
25 iconv_close(cd);],
26 am_cv_func_iconv=yes)
27 if test "$am_cv_func_iconv" != yes; then
28 am_save_LIBS="$LIBS"
29 LIBS="$LIBS -liconv"
30 AC_TRY_LINK([#include <stdlib.h>
31#include <iconv.h>],
32 [iconv_t cd = iconv_open("","");
33 iconv(cd,NULL,NULL,NULL,NULL);
34 iconv_close(cd);],
35 am_cv_lib_iconv=yes
36 am_cv_func_iconv=yes)
37 LIBS="$am_save_LIBS"
38 fi
39 ])
40 if test "$am_cv_func_iconv" = yes; then
41 AC_DEFINE(HAVE_ICONV, 1, [Define if you have the iconv() function.])
42 AC_MSG_CHECKING([for iconv declaration])
43 AC_CACHE_VAL(am_cv_proto_iconv, [
44 AC_TRY_COMPILE([
45#include <stdlib.h>
46#include <iconv.h>
47extern
48#ifdef __cplusplus
49"C"
50#endif
51#if defined(__STDC__) || defined(__cplusplus)
52size_t iconv (iconv_t cd, char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);
53#else
54size_t iconv();
55#endif
56], [], am_cv_proto_iconv_arg1="", am_cv_proto_iconv_arg1="const")
57 am_cv_proto_iconv="extern size_t iconv (iconv_t cd, $am_cv_proto_iconv_arg1 char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);"])
58 am_cv_proto_iconv=`echo "[$]am_cv_proto_iconv" | tr -s ' ' | sed -e 's/( /(/'`
59 AC_MSG_RESULT([$]{ac_t:-
60 }[$]am_cv_proto_iconv)
61 AC_DEFINE_UNQUOTED(ICONV_CONST, $am_cv_proto_iconv_arg1,
62 [Define as const if the declaration of iconv() needs const.])
63 fi
64 LIBICONV=
65 if test "$am_cv_lib_iconv" = yes; then
66 LIBICONV="-liconv"
67 fi
68 AC_SUBST(LIBICONV)
69])