| # iconv.m4 serial AM4 (gettext-0.11.3) |
| dnl Copyright (C) 2000-2002 Free Software Foundation, Inc. |
| dnl This file is free software, distributed under the terms of the GNU |
| dnl General Public License. As a special exception to the GNU General |
| dnl Public License, this file may be distributed as part of a program |
| dnl that contains a configuration script generated by Autoconf, under |
| dnl the same distribution terms as the rest of that program. |
| |
| dnl From Bruno Haible. |
| dnl with modifications to support building with in-tree libiconv |
| |
| AC_DEFUN([AM_ICONV_LINKFLAGS_BODY], |
| [ |
| dnl Prerequisites of AC_LIB_LINKFLAGS_BODY. |
| AC_REQUIRE([AC_LIB_PREPARE_PREFIX]) |
| AC_REQUIRE([AC_LIB_RPATH]) |
| |
| dnl Search for libiconv and define LIBICONV, LTLIBICONV and INCICONV |
| dnl accordingly. |
| AC_LIB_LINKFLAGS_BODY([iconv]) |
| ]) |
| |
| AC_DEFUN([AM_ICONV_LINK], |
| [ |
| dnl Some systems have iconv in libc, some have it in libiconv (OSF/1 and |
| dnl those with the standalone portable GNU libiconv installed). |
| |
| dnl Search for libiconv and define LIBICONV, LTLIBICONV and INCICONV |
| dnl accordingly. |
| AC_REQUIRE([AM_ICONV_LINKFLAGS_BODY]) |
| |
| AC_CACHE_CHECK(for iconv, am_cv_func_iconv, [ |
| am_cv_func_iconv="no, consider installing GNU libiconv" |
| am_cv_lib_iconv=no |
| dnl Add $INCICONV to CPPFLAGS before performing the first check, |
| dnl because if the user has installed libiconv and not disabled its use |
| dnl via --without-libiconv-prefix, he wants to use it. This first |
| dnl AC_TRY_LINK will then fail, the second AC_TRY_LINK will succeed. |
| am_save_CPPFLAGS="$CPPFLAGS" |
| CPPFLAGS="$CPPFLAGS $INCICONV" |
| AC_TRY_LINK([#include <stdlib.h> |
| #include <iconv.h>], |
| [iconv_t cd = iconv_open("",""); |
| iconv(cd,NULL,NULL,NULL,NULL); |
| iconv_close(cd);], |
| am_cv_func_iconv=yes) |
| CPPFLAGS="$am_save_CPPFLAGS" |
| |
| if test "$am_cv_func_iconv" != yes && test -d ../libiconv; then |
| for _libs in .libs _libs; do |
| am_save_CPPFLAGS="$CPPFLAGS" |
| am_save_LIBS="$LIBS" |
| CPPFLAGS="$CPPFLAGS -I../libiconv/include" |
| LIBS="$LIBS ../libiconv/lib/$_libs/libiconv.a" |
| AC_TRY_LINK([#include <stdlib.h> |
| #include <iconv.h>], |
| [iconv_t cd = iconv_open("",""); |
| iconv(cd,NULL,NULL,NULL,NULL); |
| iconv_close(cd);], |
| INCICONV="-I../libiconv/include" |
| LIBICONV='${top_builddir}'/../libiconv/lib/$_libs/libiconv.a |
| LTLIBICONV='${top_builddir}'/../libiconv/lib/libiconv.la |
| am_cv_lib_iconv=yes |
| am_cv_func_iconv=yes) |
| CPPFLAGS="$am_save_CPPFLAGS" |
| LIBS="$am_save_LIBS" |
| if test "$am_cv_func_iconv" = "yes"; then |
| break |
| fi |
| done |
| fi |
| |
| if test "$am_cv_func_iconv" != yes; then |
| am_save_CPPFLAGS="$CPPFLAGS" |
| am_save_LIBS="$LIBS" |
| CPPFLAGS="$LIBS $INCICONV" |
| LIBS="$LIBS $LIBICONV" |
| AC_TRY_LINK([#include <stdlib.h> |
| #include <iconv.h>], |
| [iconv_t cd = iconv_open("",""); |
| iconv(cd,NULL,NULL,NULL,NULL); |
| iconv_close(cd);], |
| am_cv_lib_iconv=yes |
| am_cv_func_iconv=yes) |
| CPPFLAGS="$am_save_CPPFLAGS" |
| LIBS="$am_save_LIBS" |
| fi |
| ]) |
| if test "$am_cv_func_iconv" = yes; then |
| AC_DEFINE(HAVE_ICONV, 1, [Define if you have the iconv() function.]) |
| fi |
| if test "$am_cv_lib_iconv" = yes; then |
| AC_LIB_APPENDTOVAR([CPPFLAGS], [$INCICONV]) |
| AC_MSG_CHECKING([how to link with libiconv]) |
| AC_MSG_RESULT([$LIBICONV]) |
| else |
| LIBICONV= |
| LTLIBICONV= |
| fi |
| AC_SUBST(LIBICONV) |
| AC_SUBST(LTLIBICONV) |
| ]) |
| |
| AC_DEFUN([AM_ICONV], |
| [ |
| AM_ICONV_LINK |
| if test "$am_cv_func_iconv" = yes; then |
| AC_MSG_CHECKING([for iconv declaration]) |
| AC_CACHE_VAL(am_cv_proto_iconv, [ |
| AC_TRY_COMPILE([ |
| #include <stdlib.h> |
| #include <iconv.h> |
| extern |
| #ifdef __cplusplus |
| "C" |
| #endif |
| #if defined(__STDC__) || defined(__cplusplus) |
| size_t iconv (iconv_t cd, char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft); |
| #else |
| size_t iconv(); |
| #endif |
| ], [], am_cv_proto_iconv_arg1="", am_cv_proto_iconv_arg1="const") |
| am_cv_proto_iconv="extern size_t iconv (iconv_t cd, $am_cv_proto_iconv_arg1 char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);"]) |
| am_cv_proto_iconv=`echo "[$]am_cv_proto_iconv" | tr -s ' ' | sed -e 's/( /(/'` |
| AC_MSG_RESULT([$]{ac_t:- |
| }[$]am_cv_proto_iconv) |
| AC_DEFINE_UNQUOTED(ICONV_CONST, $am_cv_proto_iconv_arg1, |
| [Define as const if the declaration of iconv() needs const.]) |
| fi |
| ]) |