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Member "libcdio-2.1.0/m4/iconv.m4" (12 Aug 2018, 6123 Bytes) of package /linux/privat/libcdio-2.1.0.tar.bz2:


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    1 # iconv.m4 serial AM6 (gettext-0.17)
    2 dnl Copyright (C) 2000-2002, 2007 Free Software Foundation, Inc.
    3 dnl This file is free software; the Free Software Foundation
    4 dnl gives unlimited permission to copy and/or distribute it,
    5 dnl with or without modifications, as long as this notice is preserved.
    6 
    7 dnl From Bruno Haible.
    8 
    9 AC_DEFUN([AM_ICONV_LINKFLAGS_BODY],
   10 [
   11   dnl Prerequisites of AC_LIB_LINKFLAGS_BODY.
   12   AC_REQUIRE([AC_LIB_PREPARE_PREFIX])
   13   AC_REQUIRE([AC_LIB_RPATH])
   14 
   15   dnl Search for libiconv and define LIBICONV, LTLIBICONV and INCICONV
   16   dnl accordingly.
   17   AC_LIB_LINKFLAGS_BODY([iconv])
   18 ])
   19 
   20 AC_DEFUN([AM_ICONV_LINK],
   21 [
   22   dnl Some systems have iconv in libc, some have it in libiconv (OSF/1 and
   23   dnl those with the standalone portable GNU libiconv installed).
   24   AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
   25 
   26   dnl Search for libiconv and define LIBICONV, LTLIBICONV and INCICONV
   27   dnl accordingly.
   28   AC_REQUIRE([AM_ICONV_LINKFLAGS_BODY])
   29 
   30   dnl Add $INCICONV to CPPFLAGS before performing the following checks,
   31   dnl because if the user has installed libiconv and not disabled its use
   32   dnl via --without-libiconv-prefix, he wants to use it. The first
   33   dnl AC_TRY_LINK will then fail, the second AC_TRY_LINK will succeed.
   34   am_save_CPPFLAGS="$CPPFLAGS"
   35   AC_LIB_APPENDTOVAR([CPPFLAGS], [$INCICONV])
   36 
   37   AC_CACHE_CHECK([for iconv], am_cv_func_iconv, [
   38     am_cv_func_iconv="no, consider installing GNU libiconv"
   39     am_cv_lib_iconv=no
   40     AC_TRY_LINK([#include <stdlib.h>
   41 #include <iconv.h>],
   42       [iconv_t cd = iconv_open("","");
   43        iconv(cd,NULL,NULL,NULL,NULL);
   44        iconv_close(cd);],
   45       am_cv_func_iconv=yes)
   46     if test "$am_cv_func_iconv" != yes; then
   47       am_save_LIBS="$LIBS"
   48       LIBS="$LIBS $LIBICONV"
   49       AC_TRY_LINK([#include <stdlib.h>
   50 #include <iconv.h>],
   51         [iconv_t cd = iconv_open("","");
   52          iconv(cd,NULL,NULL,NULL,NULL);
   53          iconv_close(cd);],
   54         am_cv_lib_iconv=yes
   55         am_cv_func_iconv=yes)
   56       LIBS="$am_save_LIBS"
   57     fi
   58   ])
   59   if test "$am_cv_func_iconv" = yes; then
   60     AC_CACHE_CHECK([for working iconv], am_cv_func_iconv_works, [
   61       dnl This tests against bugs in AIX 5.1 and HP-UX 11.11.
   62       am_save_LIBS="$LIBS"
   63       if test $am_cv_lib_iconv = yes; then
   64         LIBS="$LIBS $LIBICONV"
   65       fi
   66       AC_TRY_RUN([
   67 #include <iconv.h>
   68 #include <string.h>
   69 int main ()
   70 {
   71   /* Test against AIX 5.1 bug: Failures are not distinguishable from successful
   72      returns.  */
   73   {
   74     iconv_t cd_utf8_to_88591 = iconv_open ("ISO8859-1", "UTF-8");
   75     if (cd_utf8_to_88591 != (iconv_t)(-1))
   76       {
   77         static const char input[] = "\342\202\254"; /* EURO SIGN */
   78         char buf[10];
   79         const char *inptr = input;
   80         size_t inbytesleft = strlen (input);
   81         char *outptr = buf;
   82         size_t outbytesleft = sizeof (buf);
   83         size_t res = iconv (cd_utf8_to_88591,
   84                             (char **) &inptr, &inbytesleft,
   85                             &outptr, &outbytesleft);
   86         if (res == 0)
   87           return 1;
   88       }
   89   }
   90 #if 0 /* This bug could be worked around by the caller.  */
   91   /* Test against HP-UX 11.11 bug: Positive return value instead of 0.  */
   92   {
   93     iconv_t cd_88591_to_utf8 = iconv_open ("utf8", "iso88591");
   94     if (cd_88591_to_utf8 != (iconv_t)(-1))
   95       {
   96         static const char input[] = "\304rger mit b\366sen B\374bchen ohne Augenma\337";
   97         char buf[50];
   98         const char *inptr = input;
   99         size_t inbytesleft = strlen (input);
  100         char *outptr = buf;
  101         size_t outbytesleft = sizeof (buf);
  102         size_t res = iconv (cd_88591_to_utf8,
  103                             (char **) &inptr, &inbytesleft,
  104                             &outptr, &outbytesleft);
  105         if ((int)res > 0)
  106           return 1;
  107       }
  108   }
  109 #endif
  110   /* Test against HP-UX 11.11 bug: No converter from EUC-JP to UTF-8 is
  111      provided.  */
  112   if (/* Try standardized names.  */
  113       iconv_open ("UTF-8", "EUC-JP") == (iconv_t)(-1)
  114       /* Try IRIX, OSF/1 names.  */
  115       && iconv_open ("UTF-8", "eucJP") == (iconv_t)(-1)
  116       /* Try AIX names.  */
  117       && iconv_open ("UTF-8", "IBM-eucJP") == (iconv_t)(-1)
  118       /* Try HP-UX names.  */
  119       && iconv_open ("utf8", "eucJP") == (iconv_t)(-1))
  120     return 1;
  121   return 0;
  122 }], [am_cv_func_iconv_works=yes], [am_cv_func_iconv_works=no],
  123         [case "$host_os" in
  124            aix* | hpux*) am_cv_func_iconv_works="guessing no" ;;
  125            *)            am_cv_func_iconv_works="guessing yes" ;;
  126          esac])
  127       LIBS="$am_save_LIBS"
  128     ])
  129     case "$am_cv_func_iconv_works" in
  130       *no) am_func_iconv=no am_cv_lib_iconv=no ;;
  131       *)   am_func_iconv=yes ;;
  132     esac
  133   else
  134     am_func_iconv=no am_cv_lib_iconv=no
  135   fi
  136   if test "$am_func_iconv" = yes; then
  137     AC_DEFINE(HAVE_ICONV, 1,
  138       [Define if you have the iconv() function and it works.])
  139   fi
  140   if test "$am_cv_lib_iconv" = yes; then
  141     AC_MSG_CHECKING([how to link with libiconv])
  142     AC_MSG_RESULT([$LIBICONV])
  143   else
  144     dnl If $LIBICONV didn't lead to a usable library, we don't need $INCICONV
  145     dnl either.
  146     CPPFLAGS="$am_save_CPPFLAGS"
  147     LIBICONV=
  148     LTLIBICONV=
  149   fi
  150   AC_SUBST(LIBICONV)
  151   AC_SUBST(LTLIBICONV)
  152 ])
  153 
  154 AC_DEFUN([AM_ICONV],
  155 [
  156   AM_ICONV_LINK
  157   if test "$am_cv_func_iconv" = yes; then
  158     AC_MSG_CHECKING([for iconv declaration])
  159     AC_CACHE_VAL(am_cv_proto_iconv, [
  160       AC_TRY_COMPILE([
  161 #include <stdlib.h>
  162 #include <iconv.h>
  163 extern
  164 #ifdef __cplusplus
  165 "C"
  166 #endif
  167 #if defined(__STDC__) || defined(__cplusplus)
  168 size_t iconv (iconv_t cd, char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);
  169 #else
  170 size_t iconv();
  171 #endif
  172 ], [], am_cv_proto_iconv_arg1="", am_cv_proto_iconv_arg1="const")
  173       am_cv_proto_iconv="extern size_t iconv (iconv_t cd, $am_cv_proto_iconv_arg1 char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);"])
  174     am_cv_proto_iconv=`echo "[$]am_cv_proto_iconv" | tr -s ' ' | sed -e 's/( /(/'`
  175     AC_MSG_RESULT([$]{ac_t:-
  176          }[$]am_cv_proto_iconv)
  177     AC_DEFINE_UNQUOTED(ICONV_CONST, $am_cv_proto_iconv_arg1,
  178       [Define as const if the declaration of iconv() needs const.])
  179   fi
  180 ])