# iconv.m4 serial AM6 (gettext-0.16.2)dnl Copyright (C) 2000-2002, 2007 Free Software Foundation, Inc.dnl This file is free software; the Free Software Foundationdnl gives unlimited permission to copy and/or distribute it,dnl with or without modifications, as long as this notice is preserved.dnl From Bruno Haible.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).  AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles  dnl Search for libiconv and define LIBICONV, LTLIBICONV and INCICONV  dnl accordingly.  AC_REQUIRE([AM_ICONV_LINKFLAGS_BODY])  dnl Add $INCICONV to CPPFLAGS before performing the following checks,  dnl because if the user has installed libiconv and not disabled its use  dnl via --without-libiconv-prefix, he wants to use it. The first  dnl AC_TRY_LINK will then fail, the second AC_TRY_LINK will succeed.  am_save_CPPFLAGS="$CPPFLAGS"  AC_LIB_APPENDTOVAR([CPPFLAGS], [$INCICONV])  AC_CACHE_CHECK([for iconv], am_cv_func_iconv, [    am_cv_func_iconv="no, consider installing GNU libiconv"    am_cv_lib_iconv=no    AC_TRY_LINK([#include <stdlib.h>#include <iconv.h>],      [iconv_t cd = iconv_open("","");       iconv(cd,NULL,NULL,NULL,NULL);       iconv_close(cd);],      am_cv_func_iconv=yes)    if test "$am_cv_func_iconv" != yes; then      am_save_LIBS="$LIBS"      LIBS="$LIBS $LIBICONV"      AC_TRY_LINK([#include <stdlib.h>#include <iconv.h>],        [iconv_t cd = iconv_open("","");         iconv(cd,NULL,NULL,NULL,NULL);         iconv_close(cd);],        am_cv_lib_iconv=yes        am_cv_func_iconv=yes)      LIBS="$am_save_LIBS"    fi  ])  if test "$am_cv_func_iconv" = yes; then    AC_CACHE_CHECK([for working iconv], am_cv_func_iconv_works, [      dnl This tests against bugs in AIX 5.1 and HP-UX 11.11.      am_save_LIBS="$LIBS"      if test $am_cv_lib_iconv = yes; then        LIBS="$LIBS $LIBICONV"      fi      AC_TRY_RUN([#include <iconv.h>#include <string.h>int main (){  /* Test against AIX 5.1 bug: Failures are not distinguishable from successful     returns.  */  {    iconv_t cd_utf8_to_88591 = iconv_open ("ISO8859-1", "UTF-8");    if (cd_utf8_to_88591 != (iconv_t)(-1))      {        static const char input[] = "\342\202\254"; /* EURO SIGN */        char buf[10];        const char *inptr = input;        size_t inbytesleft = strlen (input);        char *outptr = buf;        size_t outbytesleft = sizeof (buf);        size_t res = iconv (cd_utf8_to_88591,                            (char **) &inptr, &inbytesleft,                            &outptr, &outbytesleft);        if (res == 0)          return 1;      }  }#if 0 /* This bug could be worked around by the caller.  */  /* Test against HP-UX 11.11 bug: Positive return value instead of 0.  */  {    iconv_t cd_88591_to_utf8 = iconv_open ("utf8", "iso88591");    if (cd_88591_to_utf8 != (iconv_t)(-1))      {        static const char input[] = "\304rger mit b\366sen B\374bchen ohne Augenma\337";        char buf[50];        const char *inptr = input;        size_t inbytesleft = strlen (input);        char *outptr = buf;        size_t outbytesleft = sizeof (buf);        size_t res = iconv (cd_88591_to_utf8,                            (char **) &inptr, &inbytesleft,                            &outptr, &outbytesleft);        if ((int)res > 0)          return 1;      }  }#endif  /* Test against HP-UX 11.11 bug: No converter from EUC-JP to UTF-8 is     provided.  */  if (/* Try standardized names.  */      iconv_open ("UTF-8", "EUC-JP") == (iconv_t)(-1)      /* Try IRIX, OSF/1 names.  */      && iconv_open ("UTF-8", "eucJP") == (iconv_t)(-1)      /* Try AIX names.  */      && iconv_open ("UTF-8", "IBM-eucJP") == (iconv_t)(-1)      /* Try HP-UX names.  */      && iconv_open ("utf8", "eucJP") == (iconv_t)(-1))    return 1;  return 0;}], [am_cv_func_iconv_works=yes], [am_cv_func_iconv_works=no],        [case "$host_os" in           aix* | hpux*) am_cv_func_iconv_works="guessing no" ;;           *)            am_cv_func_iconv_works="guessing yes" ;;         esac])      LIBS="$am_save_LIBS"    ])    case "$am_cv_func_iconv_works" in      *no) am_func_iconv=no am_cv_lib_iconv=no ;;      *)   am_func_iconv=yes ;;    esac  else    am_func_iconv=no am_cv_lib_iconv=no  fi  if test "$am_func_iconv" = yes; then    AC_DEFINE(HAVE_ICONV, 1,      [Define if you have the iconv() function and it works.])  fi  if test "$am_cv_lib_iconv" = yes; then    AC_MSG_CHECKING([how to link with libiconv])    AC_MSG_RESULT([$LIBICONV])  else    dnl If $LIBICONV didn't lead to a usable library, we don't need $INCICONV    dnl either.    CPPFLAGS="$am_save_CPPFLAGS"    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);#elsesize_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])