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Member "cryptsetup-2.4.3/m4/iconv.m4" (12 Oct 2017, 9104 Bytes) of package /linux/misc/cryptsetup-2.4.3.tar.xz:


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    1 # iconv.m4 serial 18 (gettext-0.18.2)
    2 dnl Copyright (C) 2000-2002, 2007-2013 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       AC_RUN_IFELSE(
   76         [AC_LANG_SOURCE([[
   77 #include <iconv.h>
   78 #include <string.h>
   79 int main ()
   80 {
   81   int result = 0;
   82   /* Test against AIX 5.1 bug: Failures are not distinguishable from successful
   83      returns.  */
   84   {
   85     iconv_t cd_utf8_to_88591 = iconv_open ("ISO8859-1", "UTF-8");
   86     if (cd_utf8_to_88591 != (iconv_t)(-1))
   87       {
   88         static const char input[] = "\342\202\254"; /* EURO SIGN */
   89         char buf[10];
   90         const char *inptr = input;
   91         size_t inbytesleft = strlen (input);
   92         char *outptr = buf;
   93         size_t outbytesleft = sizeof (buf);
   94         size_t res = iconv (cd_utf8_to_88591,
   95                             (char **) &inptr, &inbytesleft,
   96                             &outptr, &outbytesleft);
   97         if (res == 0)
   98           result |= 1;
   99         iconv_close (cd_utf8_to_88591);
  100       }
  101   }
  102   /* Test against Solaris 10 bug: Failures are not distinguishable from
  103      successful returns.  */
  104   {
  105     iconv_t cd_ascii_to_88591 = iconv_open ("ISO8859-1", "646");
  106     if (cd_ascii_to_88591 != (iconv_t)(-1))
  107       {
  108         static const char input[] = "\263";
  109         char buf[10];
  110         const char *inptr = input;
  111         size_t inbytesleft = strlen (input);
  112         char *outptr = buf;
  113         size_t outbytesleft = sizeof (buf);
  114         size_t res = iconv (cd_ascii_to_88591,
  115                             (char **) &inptr, &inbytesleft,
  116                             &outptr, &outbytesleft);
  117         if (res == 0)
  118           result |= 2;
  119         iconv_close (cd_ascii_to_88591);
  120       }
  121   }
  122   /* Test against AIX 6.1..7.1 bug: Buffer overrun.  */
  123   {
  124     iconv_t cd_88591_to_utf8 = iconv_open ("UTF-8", "ISO-8859-1");
  125     if (cd_88591_to_utf8 != (iconv_t)(-1))
  126       {
  127         static const char input[] = "\304";
  128         static char buf[2] = { (char)0xDE, (char)0xAD };
  129         const char *inptr = input;
  130         size_t inbytesleft = 1;
  131         char *outptr = buf;
  132         size_t outbytesleft = 1;
  133         size_t res = iconv (cd_88591_to_utf8,
  134                             (char **) &inptr, &inbytesleft,
  135                             &outptr, &outbytesleft);
  136         if (res != (size_t)(-1) || outptr - buf > 1 || buf[1] != (char)0xAD)
  137           result |= 4;
  138         iconv_close (cd_88591_to_utf8);
  139       }
  140   }
  141 #if 0 /* This bug could be worked around by the caller.  */
  142   /* Test against HP-UX 11.11 bug: Positive return value instead of 0.  */
  143   {
  144     iconv_t cd_88591_to_utf8 = iconv_open ("utf8", "iso88591");
  145     if (cd_88591_to_utf8 != (iconv_t)(-1))
  146       {
  147         static const char input[] = "\304rger mit b\366sen B\374bchen ohne Augenma\337";
  148         char buf[50];
  149         const char *inptr = input;
  150         size_t inbytesleft = strlen (input);
  151         char *outptr = buf;
  152         size_t outbytesleft = sizeof (buf);
  153         size_t res = iconv (cd_88591_to_utf8,
  154                             (char **) &inptr, &inbytesleft,
  155                             &outptr, &outbytesleft);
  156         if ((int)res > 0)
  157           result |= 8;
  158         iconv_close (cd_88591_to_utf8);
  159       }
  160   }
  161 #endif
  162   /* Test against HP-UX 11.11 bug: No converter from EUC-JP to UTF-8 is
  163      provided.  */
  164   if (/* Try standardized names.  */
  165       iconv_open ("UTF-8", "EUC-JP") == (iconv_t)(-1)
  166       /* Try IRIX, OSF/1 names.  */
  167       && iconv_open ("UTF-8", "eucJP") == (iconv_t)(-1)
  168       /* Try AIX names.  */
  169       && iconv_open ("UTF-8", "IBM-eucJP") == (iconv_t)(-1)
  170       /* Try HP-UX names.  */
  171       && iconv_open ("utf8", "eucJP") == (iconv_t)(-1))
  172     result |= 16;
  173   return result;
  174 }]])],
  175         [am_cv_func_iconv_works=yes],
  176         [am_cv_func_iconv_works=no],
  177         [
  178 changequote(,)dnl
  179          case "$host_os" in
  180            aix* | hpux*) am_cv_func_iconv_works="guessing no" ;;
  181            *)            am_cv_func_iconv_works="guessing yes" ;;
  182          esac
  183 changequote([,])dnl
  184         ])
  185       LIBS="$am_save_LIBS"
  186     ])
  187     case "$am_cv_func_iconv_works" in
  188       *no) am_func_iconv=no am_cv_lib_iconv=no ;;
  189       *)   am_func_iconv=yes ;;
  190     esac
  191   else
  192     am_func_iconv=no am_cv_lib_iconv=no
  193   fi
  194   if test "$am_func_iconv" = yes; then
  195     AC_DEFINE([HAVE_ICONV], [1],
  196       [Define if you have the iconv() function and it works.])
  197   fi
  198   if test "$am_cv_lib_iconv" = yes; then
  199     AC_MSG_CHECKING([how to link with libiconv])
  200     AC_MSG_RESULT([$LIBICONV])
  201   else
  202     dnl If $LIBICONV didn't lead to a usable library, we don't need $INCICONV
  203     dnl either.
  204     CPPFLAGS="$am_save_CPPFLAGS"
  205     LIBICONV=
  206     LTLIBICONV=
  207   fi
  208   AC_SUBST([LIBICONV])
  209   AC_SUBST([LTLIBICONV])
  210 ])
  211 
  212 dnl Define AM_ICONV using AC_DEFUN_ONCE for Autoconf >= 2.64, in order to
  213 dnl avoid warnings like
  214 dnl "warning: AC_REQUIRE: `AM_ICONV' was expanded before it was required".
  215 dnl This is tricky because of the way 'aclocal' is implemented:
  216 dnl - It requires defining an auxiliary macro whose name ends in AC_DEFUN.
  217 dnl   Otherwise aclocal's initial scan pass would miss the macro definition.
  218 dnl - It requires a line break inside the AC_DEFUN_ONCE and AC_DEFUN expansions.
  219 dnl   Otherwise aclocal would emit many "Use of uninitialized value $1"
  220 dnl   warnings.
  221 m4_define([gl_iconv_AC_DEFUN],
  222   m4_version_prereq([2.64],
  223     [[AC_DEFUN_ONCE(
  224         [$1], [$2])]],
  225     [m4_ifdef([gl_00GNULIB],
  226        [[AC_DEFUN_ONCE(
  227            [$1], [$2])]],
  228        [[AC_DEFUN(
  229            [$1], [$2])]])]))
  230 gl_iconv_AC_DEFUN([AM_ICONV],
  231 [
  232   AM_ICONV_LINK
  233   if test "$am_cv_func_iconv" = yes; then
  234     AC_MSG_CHECKING([for iconv declaration])
  235     AC_CACHE_VAL([am_cv_proto_iconv], [
  236       AC_COMPILE_IFELSE(
  237         [AC_LANG_PROGRAM(
  238            [[
  239 #include <stdlib.h>
  240 #include <iconv.h>
  241 extern
  242 #ifdef __cplusplus
  243 "C"
  244 #endif
  245 #if defined(__STDC__) || defined(_MSC_VER) || defined(__cplusplus)
  246 size_t iconv (iconv_t cd, char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);
  247 #else
  248 size_t iconv();
  249 #endif
  250            ]],
  251            [[]])],
  252         [am_cv_proto_iconv_arg1=""],
  253         [am_cv_proto_iconv_arg1="const"])
  254       am_cv_proto_iconv="extern size_t iconv (iconv_t cd, $am_cv_proto_iconv_arg1 char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);"])
  255     am_cv_proto_iconv=`echo "[$]am_cv_proto_iconv" | tr -s ' ' | sed -e 's/( /(/'`
  256     AC_MSG_RESULT([
  257          $am_cv_proto_iconv])
  258     AC_DEFINE_UNQUOTED([ICONV_CONST], [$am_cv_proto_iconv_arg1],
  259       [Define as const if the declaration of iconv() needs const.])
  260     dnl Also substitute ICONV_CONST in the gnulib generated <iconv.h>.
  261     m4_ifdef([gl_ICONV_H_DEFAULTS],
  262       [AC_REQUIRE([gl_ICONV_H_DEFAULTS])
  263        if test -n "$am_cv_proto_iconv_arg1"; then
  264          ICONV_CONST="const"
  265        fi
  266       ])
  267   fi
  268 ])