Annotation of embedaddon/libiconv/srcm4/iconv.m4, revision 1.1
1.1 ! misho 1: # iconv.m4 serial AM7 (gettext-0.18)
! 2: dnl Copyright (C) 2000-2002, 2007-2009 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: ])
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