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Member "pulseaudio-14.2/m4/iconv.m4" (16 Jan 2021, 9274 Bytes) of package /linux/misc/pulseaudio-14.2.tar.xz:


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    1 # iconv.m4 serial 19 (gettext-0.18.2)
    2 dnl Copyright (C) 2000-2002, 2007-2014, 2016 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 $INCICONV to CPPFLAGS before performing the following checks,
   31   dnl because if the user has installed libiconv and not disabled its use
   32   dnl via --without-libiconv-prefix, he wants to use it. The first
   33   dnl AC_LINK_IFELSE will then fail, the second AC_LINK_IFELSE will succeed.
   34   am_save_CPPFLAGS="$CPPFLAGS"
   35   AC_LIB_APPENDTOVAR([CPPFLAGS], [$INCICONV])
   36 
   37   AC_CACHE_CHECK([for iconv], [am_cv_func_iconv], [
   38     am_cv_func_iconv="no, consider installing GNU libiconv"
   39     am_cv_lib_iconv=no
   40     AC_LINK_IFELSE(
   41       [AC_LANG_PROGRAM(
   42          [[
   43 #include <stdlib.h>
   44 #include <iconv.h>
   45          ]],
   46          [[iconv_t cd = iconv_open("","");
   47            iconv(cd,NULL,NULL,NULL,NULL);
   48            iconv_close(cd);]])],
   49       [am_cv_func_iconv=yes])
   50     if test "$am_cv_func_iconv" != yes; then
   51       am_save_LIBS="$LIBS"
   52       LIBS="$LIBS $LIBICONV"
   53       AC_LINK_IFELSE(
   54         [AC_LANG_PROGRAM(
   55            [[
   56 #include <stdlib.h>
   57 #include <iconv.h>
   58            ]],
   59            [[iconv_t cd = iconv_open("","");
   60              iconv(cd,NULL,NULL,NULL,NULL);
   61              iconv_close(cd);]])],
   62         [am_cv_lib_iconv=yes]
   63         [am_cv_func_iconv=yes])
   64       LIBS="$am_save_LIBS"
   65     fi
   66   ])
   67   if test "$am_cv_func_iconv" = yes; then
   68     AC_CACHE_CHECK([for working iconv], [am_cv_func_iconv_works], [
   69       dnl This tests against bugs in AIX 5.1, AIX 6.1..7.1, HP-UX 11.11,
   70       dnl Solaris 10.
   71       am_save_LIBS="$LIBS"
   72       if test $am_cv_lib_iconv = yes; then
   73         LIBS="$LIBS $LIBICONV"
   74       fi
   75       am_cv_func_iconv_works=no
   76       for ac_iconv_const in '' 'const'; do
   77         AC_RUN_IFELSE(
   78           [AC_LANG_PROGRAM(
   79              [[
   80 #include <iconv.h>
   81 #include <string.h>
   82 
   83 #ifndef ICONV_CONST
   84 # define ICONV_CONST $ac_iconv_const
   85 #endif
   86              ]],
   87              [[int result = 0;
   88   /* Test against AIX 5.1 bug: Failures are not distinguishable from successful
   89      returns.  */
   90   {
   91     iconv_t cd_utf8_to_88591 = iconv_open ("ISO8859-1", "UTF-8");
   92     if (cd_utf8_to_88591 != (iconv_t)(-1))
   93       {
   94         static ICONV_CONST char input[] = "\342\202\254"; /* EURO SIGN */
   95         char buf[10];
   96         ICONV_CONST char *inptr = input;
   97         size_t inbytesleft = strlen (input);
   98         char *outptr = buf;
   99         size_t outbytesleft = sizeof (buf);
  100         size_t res = iconv (cd_utf8_to_88591,
  101                             &inptr, &inbytesleft,
  102                             &outptr, &outbytesleft);
  103         if (res == 0)
  104           result |= 1;
  105         iconv_close (cd_utf8_to_88591);
  106       }
  107   }
  108   /* Test against Solaris 10 bug: Failures are not distinguishable from
  109      successful returns.  */
  110   {
  111     iconv_t cd_ascii_to_88591 = iconv_open ("ISO8859-1", "646");
  112     if (cd_ascii_to_88591 != (iconv_t)(-1))
  113       {
  114         static ICONV_CONST char input[] = "\263";
  115         char buf[10];
  116         ICONV_CONST char *inptr = input;
  117         size_t inbytesleft = strlen (input);
  118         char *outptr = buf;
  119         size_t outbytesleft = sizeof (buf);
  120         size_t res = iconv (cd_ascii_to_88591,
  121                             &inptr, &inbytesleft,
  122                             &outptr, &outbytesleft);
  123         if (res == 0)
  124           result |= 2;
  125         iconv_close (cd_ascii_to_88591);
  126       }
  127   }
  128   /* Test against AIX 6.1..7.1 bug: Buffer overrun.  */
  129   {
  130     iconv_t cd_88591_to_utf8 = iconv_open ("UTF-8", "ISO-8859-1");
  131     if (cd_88591_to_utf8 != (iconv_t)(-1))
  132       {
  133         static ICONV_CONST char input[] = "\304";
  134         static char buf[2] = { (char)0xDE, (char)0xAD };
  135         ICONV_CONST char *inptr = input;
  136         size_t inbytesleft = 1;
  137         char *outptr = buf;
  138         size_t outbytesleft = 1;
  139         size_t res = iconv (cd_88591_to_utf8,
  140                             &inptr, &inbytesleft,
  141                             &outptr, &outbytesleft);
  142         if (res != (size_t)(-1) || outptr - buf > 1 || buf[1] != (char)0xAD)
  143           result |= 4;
  144         iconv_close (cd_88591_to_utf8);
  145       }
  146   }
  147 #if 0 /* This bug could be worked around by the caller.  */
  148   /* Test against HP-UX 11.11 bug: Positive return value instead of 0.  */
  149   {
  150     iconv_t cd_88591_to_utf8 = iconv_open ("utf8", "iso88591");
  151     if (cd_88591_to_utf8 != (iconv_t)(-1))
  152       {
  153         static ICONV_CONST char input[] = "\304rger mit b\366sen B\374bchen ohne Augenma\337";
  154         char buf[50];
  155         ICONV_CONST char *inptr = input;
  156         size_t inbytesleft = strlen (input);
  157         char *outptr = buf;
  158         size_t outbytesleft = sizeof (buf);
  159         size_t res = iconv (cd_88591_to_utf8,
  160                             &inptr, &inbytesleft,
  161                             &outptr, &outbytesleft);
  162         if ((int)res > 0)
  163           result |= 8;
  164         iconv_close (cd_88591_to_utf8);
  165       }
  166   }
  167 #endif
  168   /* Test against HP-UX 11.11 bug: No converter from EUC-JP to UTF-8 is
  169      provided.  */
  170   if (/* Try standardized names.  */
  171       iconv_open ("UTF-8", "EUC-JP") == (iconv_t)(-1)
  172       /* Try IRIX, OSF/1 names.  */
  173       && iconv_open ("UTF-8", "eucJP") == (iconv_t)(-1)
  174       /* Try AIX names.  */
  175       && iconv_open ("UTF-8", "IBM-eucJP") == (iconv_t)(-1)
  176       /* Try HP-UX names.  */
  177       && iconv_open ("utf8", "eucJP") == (iconv_t)(-1))
  178     result |= 16;
  179   return result;
  180 ]])],
  181           [am_cv_func_iconv_works=yes], ,
  182           [case "$host_os" in
  183              aix* | hpux*) am_cv_func_iconv_works="guessing no" ;;
  184              *)            am_cv_func_iconv_works="guessing yes" ;;
  185            esac])
  186         test "$am_cv_func_iconv_works" = no || break
  187       done
  188       LIBS="$am_save_LIBS"
  189     ])
  190     case "$am_cv_func_iconv_works" in
  191       *no) am_func_iconv=no am_cv_lib_iconv=no ;;
  192       *)   am_func_iconv=yes ;;
  193     esac
  194   else
  195     am_func_iconv=no am_cv_lib_iconv=no
  196   fi
  197   if test "$am_func_iconv" = yes; then
  198     AC_DEFINE([HAVE_ICONV], [1],
  199       [Define if you have the iconv() function and it works.])
  200   fi
  201   if test "$am_cv_lib_iconv" = yes; then
  202     AC_MSG_CHECKING([how to link with libiconv])
  203     AC_MSG_RESULT([$LIBICONV])
  204   else
  205     dnl If $LIBICONV didn't lead to a usable library, we don't need $INCICONV
  206     dnl either.
  207     CPPFLAGS="$am_save_CPPFLAGS"
  208     LIBICONV=
  209     LTLIBICONV=
  210   fi
  211   AC_SUBST([LIBICONV])
  212   AC_SUBST([LTLIBICONV])
  213 ])
  214 
  215 dnl Define AM_ICONV using AC_DEFUN_ONCE for Autoconf >= 2.64, in order to
  216 dnl avoid warnings like
  217 dnl "warning: AC_REQUIRE: `AM_ICONV' was expanded before it was required".
  218 dnl This is tricky because of the way 'aclocal' is implemented:
  219 dnl - It requires defining an auxiliary macro whose name ends in AC_DEFUN.
  220 dnl   Otherwise aclocal's initial scan pass would miss the macro definition.
  221 dnl - It requires a line break inside the AC_DEFUN_ONCE and AC_DEFUN expansions.
  222 dnl   Otherwise aclocal would emit many "Use of uninitialized value $1"
  223 dnl   warnings.
  224 m4_define([gl_iconv_AC_DEFUN],
  225   m4_version_prereq([2.64],
  226     [[AC_DEFUN_ONCE(
  227         [$1], [$2])]],
  228     [m4_ifdef([gl_00GNULIB],
  229        [[AC_DEFUN_ONCE(
  230            [$1], [$2])]],
  231        [[AC_DEFUN(
  232            [$1], [$2])]])]))
  233 gl_iconv_AC_DEFUN([AM_ICONV],
  234 [
  235   AM_ICONV_LINK
  236   if test "$am_cv_func_iconv" = yes; then
  237     AC_MSG_CHECKING([for iconv declaration])
  238     AC_CACHE_VAL([am_cv_proto_iconv], [
  239       AC_COMPILE_IFELSE(
  240         [AC_LANG_PROGRAM(
  241            [[
  242 #include <stdlib.h>
  243 #include <iconv.h>
  244 extern
  245 #ifdef __cplusplus
  246 "C"
  247 #endif
  248 #if defined(__STDC__) || defined(_MSC_VER) || defined(__cplusplus)
  249 size_t iconv (iconv_t cd, char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);
  250 #else
  251 size_t iconv();
  252 #endif
  253            ]],
  254            [[]])],
  255         [am_cv_proto_iconv_arg1=""],
  256         [am_cv_proto_iconv_arg1="const"])
  257       am_cv_proto_iconv="extern size_t iconv (iconv_t cd, $am_cv_proto_iconv_arg1 char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);"])
  258     am_cv_proto_iconv=`echo "[$]am_cv_proto_iconv" | tr -s ' ' | sed -e 's/( /(/'`
  259     AC_MSG_RESULT([
  260          $am_cv_proto_iconv])
  261     AC_DEFINE_UNQUOTED([ICONV_CONST], [$am_cv_proto_iconv_arg1],
  262       [Define as const if the declaration of iconv() needs const.])
  263     dnl Also substitute ICONV_CONST in the gnulib generated <iconv.h>.
  264     m4_ifdef([gl_ICONV_H_DEFAULTS],
  265       [AC_REQUIRE([gl_ICONV_H_DEFAULTS])
  266        if test -n "$am_cv_proto_iconv_arg1"; then
  267          ICONV_CONST="const"
  268        fi
  269       ])
  270   fi
  271 ])