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Member "scalpel-2.0/tre-0.7.5-win32/m4/iconv.m4" (20 Apr 2011, 3350 Bytes) of archive /linux/misc/scalpel-2.0.tar.gz:


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    1 # iconv.m4 serial AM4 (gettext-0.11.3)
    2 dnl Copyright (C) 2000-2002 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 
   25   dnl Search for libiconv and define LIBICONV, LTLIBICONV and INCICONV
   26   dnl accordingly.
   27   AC_REQUIRE([AM_ICONV_LINKFLAGS_BODY])
   28 
   29   dnl Add $INCICONV to CPPFLAGS before performing the following checks,
   30   dnl because if the user has installed libiconv and not disabled its use
   31   dnl via --without-libiconv-prefix, he wants to use it. The first
   32   dnl AC_TRY_LINK will then fail, the second AC_TRY_LINK will succeed.
   33   am_save_CPPFLAGS="$CPPFLAGS"
   34   AC_LIB_APPENDTOVAR([CPPFLAGS], [$INCICONV])
   35 
   36   AC_CACHE_CHECK(for iconv, am_cv_func_iconv, [
   37     am_cv_func_iconv="no, consider installing GNU libiconv"
   38     am_cv_lib_iconv=no
   39     AC_TRY_LINK([#include <stdlib.h>
   40 #include <iconv.h>],
   41       [iconv_t cd = iconv_open("","");
   42        iconv(cd,NULL,NULL,NULL,NULL);
   43        iconv_close(cd);],
   44       am_cv_func_iconv=yes)
   45     if test "$am_cv_func_iconv" != yes; then
   46       am_save_LIBS="$LIBS"
   47       LIBS="$LIBS $LIBICONV"
   48       AC_TRY_LINK([#include <stdlib.h>
   49 #include <iconv.h>],
   50         [iconv_t cd = iconv_open("","");
   51          iconv(cd,NULL,NULL,NULL,NULL);
   52          iconv_close(cd);],
   53         am_cv_lib_iconv=yes
   54         am_cv_func_iconv=yes)
   55       LIBS="$am_save_LIBS"
   56     fi
   57   ])
   58   if test "$am_cv_func_iconv" = yes; then
   59     AC_DEFINE(HAVE_ICONV, 1, [Define if you have the iconv() function.])
   60   fi
   61   if test "$am_cv_lib_iconv" = yes; then
   62     AC_MSG_CHECKING([how to link with libiconv])
   63     AC_MSG_RESULT([$LIBICONV])
   64   else
   65     dnl If $LIBICONV didn't lead to a usable library, we don't need $INCICONV
   66     dnl either.
   67     CPPFLAGS="$am_save_CPPFLAGS"
   68     LIBICONV=
   69     LTLIBICONV=
   70   fi
   71   AC_SUBST(LIBICONV)
   72   AC_SUBST(LTLIBICONV)
   73 ])
   74 
   75 AC_DEFUN([AM_ICONV],
   76 [
   77   AM_ICONV_LINK
   78   if test "$am_cv_func_iconv" = yes; then
   79     AC_MSG_CHECKING([for iconv declaration])
   80     AC_CACHE_VAL(am_cv_proto_iconv, [
   81       AC_TRY_COMPILE([
   82 #include <stdlib.h>
   83 #include <iconv.h>
   84 extern
   85 #ifdef __cplusplus
   86 "C"
   87 #endif
   88 #if defined(__STDC__) || defined(__cplusplus)
   89 size_t iconv (iconv_t cd, char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);
   90 #else
   91 size_t iconv();
   92 #endif
   93 ], [], am_cv_proto_iconv_arg1="", am_cv_proto_iconv_arg1="const")
   94       am_cv_proto_iconv="extern size_t iconv (iconv_t cd, $am_cv_proto_iconv_arg1 char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);"])
   95     am_cv_proto_iconv=`echo "[$]am_cv_proto_iconv" | tr -s ' ' | sed -e 's/( /(/'`
   96     AC_MSG_RESULT([$]{ac_t:-
   97          }[$]am_cv_proto_iconv)
   98     AC_DEFINE_UNQUOTED(ICONV_CONST, $am_cv_proto_iconv_arg1,
   99       [Define as const if the declaration of iconv() needs const.])
  100   fi
  101 ])