Annotation of embedaddon/libiconv/srcm4/iconv.m4, revision 1.1.1.2
1.1.1.2 ! misho 1: # iconv.m4 serial 17 (gettext-0.18.2)
! 2: dnl Copyright (C) 2000-2002, 2007-2011 Free Software Foundation, Inc.
1.1 misho 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 $INCICONV to CPPFLAGS before performing the following checks,
31: dnl because if the user has installed libiconv and not disabled its use
32: dnl via --without-libiconv-prefix, he wants to use it. The first
1.1.1.2 ! misho 33: dnl AC_LINK_IFELSE will then fail, the second AC_LINK_IFELSE will succeed.
1.1 misho 34: am_save_CPPFLAGS="$CPPFLAGS"
35: AC_LIB_APPENDTOVAR([CPPFLAGS], [$INCICONV])
36:
37: AC_CACHE_CHECK([for iconv], [am_cv_func_iconv], [
38: am_cv_func_iconv="no, consider installing GNU libiconv"
39: am_cv_lib_iconv=no
1.1.1.2 ! misho 40: AC_LINK_IFELSE(
! 41: [AC_LANG_PROGRAM(
! 42: [[
! 43: #include <stdlib.h>
! 44: #include <iconv.h>
! 45: ]],
! 46: [[iconv_t cd = iconv_open("","");
! 47: iconv(cd,NULL,NULL,NULL,NULL);
! 48: iconv_close(cd);]])],
1.1 misho 49: [am_cv_func_iconv=yes])
50: if test "$am_cv_func_iconv" != yes; then
51: am_save_LIBS="$LIBS"
52: LIBS="$LIBS $LIBICONV"
1.1.1.2 ! misho 53: AC_LINK_IFELSE(
! 54: [AC_LANG_PROGRAM(
! 55: [[
! 56: #include <stdlib.h>
! 57: #include <iconv.h>
! 58: ]],
! 59: [[iconv_t cd = iconv_open("","");
! 60: iconv(cd,NULL,NULL,NULL,NULL);
! 61: iconv_close(cd);]])],
1.1 misho 62: [am_cv_lib_iconv=yes]
63: [am_cv_func_iconv=yes])
64: LIBS="$am_save_LIBS"
65: fi
66: ])
67: if test "$am_cv_func_iconv" = yes; then
68: AC_CACHE_CHECK([for working iconv], [am_cv_func_iconv_works], [
1.1.1.2 ! misho 69: dnl This tests against bugs in AIX 5.1, AIX 6.1..7.1, HP-UX 11.11,
! 70: dnl Solaris 10.
1.1 misho 71: am_save_LIBS="$LIBS"
72: if test $am_cv_lib_iconv = yes; then
73: LIBS="$LIBS $LIBICONV"
74: fi
1.1.1.2 ! misho 75: AC_RUN_IFELSE(
! 76: [AC_LANG_SOURCE([[
1.1 misho 77: #include <iconv.h>
78: #include <string.h>
79: int main ()
80: {
1.1.1.2 ! misho 81: int result = 0;
1.1 misho 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)
1.1.1.2 ! misho 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);
1.1 misho 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)
1.1.1.2 ! misho 157: result |= 8;
! 158: iconv_close (cd_88591_to_utf8);
1.1 misho 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))
1.1.1.2 ! misho 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
1.1 misho 180: aix* | hpux*) am_cv_func_iconv_works="guessing no" ;;
181: *) am_cv_func_iconv_works="guessing yes" ;;
1.1.1.2 ! misho 182: esac
! 183: changequote([,])dnl
! 184: ])
1.1 misho 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:
1.1.1.2 ! misho 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], [$2])]])]))
! 230: gl_iconv_AC_DEFUN([AM_ICONV],
1.1 misho 231: [
232: AM_ICONV_LINK
233: if test "$am_cv_func_iconv" = yes; then
234: AC_MSG_CHECKING([for iconv declaration])
235: AC_CACHE_VAL([am_cv_proto_iconv], [
1.1.1.2 ! misho 236: AC_COMPILE_IFELSE(
! 237: [AC_LANG_PROGRAM(
! 238: [[
1.1 misho 239: #include <stdlib.h>
240: #include <iconv.h>
241: extern
242: #ifdef __cplusplus
243: "C"
244: #endif
245: #if defined(__STDC__) || 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
1.1.1.2 ! misho 250: ]],
! 251: [[]])],
! 252: [am_cv_proto_iconv_arg1=""],
! 253: [am_cv_proto_iconv_arg1="const"])
1.1 misho 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/( /(/'`
1.1.1.2 ! misho 256: AC_MSG_RESULT([
! 257: $am_cv_proto_iconv])
1.1 misho 258: AC_DEFINE_UNQUOTED([ICONV_CONST], [$am_cv_proto_iconv_arg1],
259: [Define as const if the declaration of iconv() needs const.])
1.1.1.2 ! misho 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: ])
1.1 misho 267: fi
268: ])
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