[thirdparty/gcc.git] / config / iconv.m4

# iconv.m4 serial 26
dnl Copyright (C) 2000-2002, 2007-2014, 2016-2023 Free Software Foundation,
dnl Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.

dnl From Bruno Haible.

AC_PREREQ([2.64])

dnl Note: AM_ICONV is documented in the GNU gettext manual
dnl <https://www.gnu.org/software/gettext/manual/html_node/AM_005fICONV.html>.
dnl Don't make changes that are incompatible with that documentation!

AC_DEFUN([AM_ICONV_LINKFLAGS_BODY],
[
  dnl Prerequisites of AC_LIB_LINKFLAGS_BODY.
  AC_REQUIRE([AC_LIB_PREPARE_PREFIX])
  AC_REQUIRE([AC_LIB_RPATH])

  dnl Search for libiconv and define LIBICONV, LTLIBICONV and INCICONV
  dnl accordingly.
  AC_LIB_LINKFLAGS_BODY([iconv])
])

AC_DEFUN([AM_ICONV_LINK],
[
  dnl Some systems have iconv in libc, some have it in libiconv (OSF/1 and
  dnl those with the standalone portable GNU libiconv installed).
  AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles

  dnl Search for libiconv and define LIBICONV, LTLIBICONV and INCICONV
  dnl accordingly.
  AC_REQUIRE([AM_ICONV_LINKFLAGS_BODY])

  dnl Add $INCICONV to CPPFLAGS before performing the following checks,
  dnl because if the user has installed libiconv and not disabled its use
  dnl via --without-libiconv-prefix, he wants to use it. The first
  dnl AC_LINK_IFELSE will then fail, the second AC_LINK_IFELSE will succeed.
  am_save_CPPFLAGS="$CPPFLAGS"
  AC_LIB_APPENDTOVAR([CPPFLAGS], [$INCICONV])

  AC_CACHE_CHECK([for iconv], [am_cv_func_iconv], [
    am_cv_func_iconv="no, consider installing GNU libiconv"
    am_cv_lib_iconv=no
    AC_LINK_IFELSE(
      [AC_LANG_PROGRAM(
         [[
#include <stdlib.h>
#include <iconv.h>
         ]],
         [[iconv_t cd = iconv_open("","");
           iconv(cd,NULL,NULL,NULL,NULL);
           iconv_close(cd);]])],
      [am_cv_func_iconv=yes])
    if test "$am_cv_func_iconv" != yes; then
      am_save_LIBS="$LIBS"
      LIBS="$LIBS $LIBICONV"
      AC_LINK_IFELSE(
        [AC_LANG_PROGRAM(
           [[
#include <stdlib.h>
#include <iconv.h>
           ]],
           [[iconv_t cd = iconv_open("","");
             iconv(cd,NULL,NULL,NULL,NULL);
             iconv_close(cd);]])],
        [am_cv_lib_iconv=yes]
        [am_cv_func_iconv=yes])
      LIBS="$am_save_LIBS"
    fi
  ])
  if test "$am_cv_func_iconv" = yes; then
    AC_CACHE_CHECK([for working iconv], [am_cv_func_iconv_works], [
      dnl This tests against bugs in AIX 5.1, AIX 6.1..7.1, HP-UX 11.11,
      dnl Solaris 10.
      am_save_LIBS="$LIBS"
      if test $am_cv_lib_iconv = yes; then
        LIBS="$LIBS $LIBICONV"
      fi
      am_cv_func_iconv_works=no
      for ac_iconv_const in '' 'const'; do
        AC_RUN_IFELSE(
          [AC_LANG_PROGRAM(
             [[
#include <iconv.h>
#include <string.h>

#ifndef ICONV_CONST
# define ICONV_CONST $ac_iconv_const
#endif
             ]],
             [[int result = 0;
  /* Test against AIX 5.1...7.2 bug: Failures are not distinguishable from
     successful returns.  This is even documented in
     <https://www.ibm.com/support/knowledgecenter/ssw_aix_72/i_bostechref/iconv.html> */
  {
    iconv_t cd_utf8_to_88591 = iconv_open ("ISO8859-1", "UTF-8");
    if (cd_utf8_to_88591 != (iconv_t)(-1))
      {
        static ICONV_CONST char input[] = "\342\202\254"; /* EURO SIGN */
        char buf[10];
        ICONV_CONST char *inptr = input;
        size_t inbytesleft = strlen (input);
        char *outptr = buf;
        size_t outbytesleft = sizeof (buf);
        size_t res = iconv (cd_utf8_to_88591,
                            &inptr, &inbytesleft,
                            &outptr, &outbytesleft);
        if (res == 0)
          result |= 1;
        iconv_close (cd_utf8_to_88591);
      }
  }
  /* Test against Solaris 10 bug: Failures are not distinguishable from
     successful returns.  */
  {
    iconv_t cd_ascii_to_88591 = iconv_open ("ISO8859-1", "646");
    if (cd_ascii_to_88591 != (iconv_t)(-1))
      {
        static ICONV_CONST char input[] = "\263";
        char buf[10];
        ICONV_CONST char *inptr = input;
        size_t inbytesleft = strlen (input);
        char *outptr = buf;
        size_t outbytesleft = sizeof (buf);
        size_t res = iconv (cd_ascii_to_88591,
                            &inptr, &inbytesleft,
                            &outptr, &outbytesleft);
        if (res == 0)
          result |= 2;
        iconv_close (cd_ascii_to_88591);
      }
  }
  /* Test against AIX 6.1..7.1 bug: Buffer overrun.  */
  {
    iconv_t cd_88591_to_utf8 = iconv_open ("UTF-8", "ISO-8859-1");
    if (cd_88591_to_utf8 != (iconv_t)(-1))
      {
        static ICONV_CONST char input[] = "\304";
        static char buf[2] = { (char)0xDE, (char)0xAD };
        ICONV_CONST char *inptr = input;
        size_t inbytesleft = 1;
        char *outptr = buf;
        size_t outbytesleft = 1;
        size_t res = iconv (cd_88591_to_utf8,
                            &inptr, &inbytesleft,
                            &outptr, &outbytesleft);
        if (res != (size_t)(-1) || outptr - buf > 1 || buf[1] != (char)0xAD)
          result |= 4;
        iconv_close (cd_88591_to_utf8);
      }
  }
#if 0 /* This bug could be worked around by the caller.  */
  /* Test against HP-UX 11.11 bug: Positive return value instead of 0.  */
  {
    iconv_t cd_88591_to_utf8 = iconv_open ("utf8", "iso88591");
    if (cd_88591_to_utf8 != (iconv_t)(-1))
      {
        static ICONV_CONST char input[] = "\304rger mit b\366sen B\374bchen ohne Augenma\337";
        char buf[50];
        ICONV_CONST char *inptr = input;
        size_t inbytesleft = strlen (input);
        char *outptr = buf;
        size_t outbytesleft = sizeof (buf);
        size_t res = iconv (cd_88591_to_utf8,
                            &inptr, &inbytesleft,
                            &outptr, &outbytesleft);
        if ((int)res > 0)
          result |= 8;
        iconv_close (cd_88591_to_utf8);
      }
  }
#endif
  /* Test against HP-UX 11.11 bug: No converter from EUC-JP to UTF-8 is
     provided.  */
  {
    /* Try standardized names.  */
    iconv_t cd1 = iconv_open ("UTF-8", "EUC-JP");
    /* Try IRIX, OSF/1 names.  */
    iconv_t cd2 = iconv_open ("UTF-8", "eucJP");
    /* Try AIX names.  */
    iconv_t cd3 = iconv_open ("UTF-8", "IBM-eucJP");
    /* Try HP-UX names.  */
    iconv_t cd4 = iconv_open ("utf8", "eucJP");
    if (cd1 == (iconv_t)(-1) && cd2 == (iconv_t)(-1)
        && cd3 == (iconv_t)(-1) && cd4 == (iconv_t)(-1))
      result |= 16;
    if (cd1 != (iconv_t)(-1))
      iconv_close (cd1);
    if (cd2 != (iconv_t)(-1))
      iconv_close (cd2);
    if (cd3 != (iconv_t)(-1))
      iconv_close (cd3);
    if (cd4 != (iconv_t)(-1))
      iconv_close (cd4);
  }
  return result;
]])],
          [am_cv_func_iconv_works=yes], ,
          [case "$host_os" in
             aix* | hpux*) am_cv_func_iconv_works="guessing no" ;;
             *)            am_cv_func_iconv_works="guessing yes" ;;
           esac])
        test "$am_cv_func_iconv_works" = no || break
      done
      LIBS="$am_save_LIBS"
    ])
    case "$am_cv_func_iconv_works" in
      *no) am_func_iconv=no am_cv_lib_iconv=no ;;
      *)   am_func_iconv=yes ;;
    esac
  else
    am_func_iconv=no am_cv_lib_iconv=no
  fi
  if test "$am_func_iconv" = yes; then
    AC_DEFINE([HAVE_ICONV], [1],
      [Define if you have the iconv() function and it works.])
  fi
  if test "$am_cv_lib_iconv" = yes; then
    AC_MSG_CHECKING([how to link with libiconv])
    AC_MSG_RESULT([$LIBICONV])
  else
    dnl If $LIBICONV didn't lead to a usable library, we don't need $INCICONV
    dnl either.
    CPPFLAGS="$am_save_CPPFLAGS"
    LIBICONV=
    LTLIBICONV=
  fi
  AC_SUBST([LIBICONV])
  AC_SUBST([LTLIBICONV])
])

dnl Define AM_ICONV using AC_DEFUN_ONCE, in order to avoid warnings like
dnl "warning: AC_REQUIRE: `AM_ICONV' was expanded before it was required".
AC_DEFUN_ONCE([AM_ICONV],
[
  AM_ICONV_LINK
  if test "$am_cv_func_iconv" = yes; then
    AC_CACHE_CHECK([whether iconv is compatible with its POSIX signature],
      [gl_cv_iconv_nonconst],
      [AC_COMPILE_IFELSE(
         [AC_LANG_PROGRAM(
            [[
#include <stdlib.h>
#include <iconv.h>
extern
#ifdef __cplusplus
"C"
#endif
size_t iconv (iconv_t cd, char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);
            ]],
            [[]])],
         [gl_cv_iconv_nonconst=yes],
         [gl_cv_iconv_nonconst=no])
      ])
  else
    dnl When compiling GNU libiconv on a system that does not have iconv yet,
    dnl pick the POSIX compliant declaration without 'const'.
    gl_cv_iconv_nonconst=yes
  fi
  if test $gl_cv_iconv_nonconst = yes; then
    iconv_arg1=""
  else
    iconv_arg1="const"
  fi
  AC_DEFINE_UNQUOTED([ICONV_CONST], [$iconv_arg1],
    [Define as const if the declaration of iconv() needs const.])
  dnl Also substitute ICONV_CONST in the gnulib generated <iconv.h>.
  m4_ifdef([gl_ICONV_H_DEFAULTS],
    [AC_REQUIRE([gl_ICONV_H_DEFAULTS])
     if test $gl_cv_iconv_nonconst != yes; then
       ICONV_CONST="const"
     fi
    ])

  dnl A summary result, for those packages which want to print a summary at the
  dnl end of the configuration.
  if test "$am_func_iconv" = yes; then
    if test -n "$LIBICONV"; then
      am_cv_func_iconv_summary='yes, in libiconv'
    else
      am_cv_func_iconv_summary='yes, in libc'
    fi
  else
    if test "$am_cv_func_iconv" = yes; then
      am_cv_func_iconv_summary='not working, consider installing GNU libiconv'
    else
      am_cv_func_iconv_summary='no, consider installing GNU libiconv'
    fi
  fi
])
Commit	Line	Data
db50aea6 AA	1	# iconv.m4 serial 26
	2	dnl Copyright (C) 2000-2002, 2007-2014, 2016-2023 Free Software Foundation,
	3	dnl Inc.
	4	dnl This file is free software; the Free Software Foundation
	5	dnl gives unlimited permission to copy and/or distribute it,
	6	dnl with or without modifications, as long as this notice is preserved.
88fa57d7 KC	7
88fa57d7 KC	8	dnl From Bruno Haible.
db50aea6 AA	9
	10	AC_PREREQ([2.64])
	11
	12	dnl Note: AM_ICONV is documented in the GNU gettext manual
	13	dnl <https://www.gnu.org/software/gettext/manual/html_node/AM_005fICONV.html>.
	14	dnl Don't make changes that are incompatible with that documentation!
88fa57d7 KC	15
	16	AC_DEFUN([AM_ICONV_LINKFLAGS_BODY],
	17	[
	18	dnl Prerequisites of AC_LIB_LINKFLAGS_BODY.
	19	AC_REQUIRE([AC_LIB_PREPARE_PREFIX])
	20	AC_REQUIRE([AC_LIB_RPATH])
	21
	22	dnl Search for libiconv and define LIBICONV, LTLIBICONV and INCICONV
	23	dnl accordingly.
	24	AC_LIB_LINKFLAGS_BODY([iconv])
	25	])
	26
	27	AC_DEFUN([AM_ICONV_LINK],
	28	[
	29	dnl Some systems have iconv in libc, some have it in libiconv (OSF/1 and
	30	dnl those with the standalone portable GNU libiconv installed).
db50aea6	31	AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
88fa57d7 KC	32
	33	dnl Search for libiconv and define LIBICONV, LTLIBICONV and INCICONV
	34	dnl accordingly.
	35	AC_REQUIRE([AM_ICONV_LINKFLAGS_BODY])
	36
db50aea6 AA	37	dnl Add $INCICONV to CPPFLAGS before performing the following checks,
	38	dnl because if the user has installed libiconv and not disabled its use
	39	dnl via --without-libiconv-prefix, he wants to use it. The first
	40	dnl AC_LINK_IFELSE will then fail, the second AC_LINK_IFELSE will succeed.
	41	am_save_CPPFLAGS="$CPPFLAGS"
	42	AC_LIB_APPENDTOVAR([CPPFLAGS], [$INCICONV])
	43
	44	AC_CACHE_CHECK([for iconv], [am_cv_func_iconv], [
88fa57d7 KC	45	am_cv_func_iconv="no, consider installing GNU libiconv"
88fa57d7 KC	46	am_cv_lib_iconv=no
db50aea6 AA	47	AC_LINK_IFELSE(
	48	[AC_LANG_PROGRAM(
	49	[[
	50	#include <stdlib.h>
	51	#include <iconv.h>
	52	]],
	53	[[iconv_t cd = iconv_open("","");
d4859822	54	iconv(cd,NULL,NULL,NULL,NULL);
db50aea6 AA	55	iconv_close(cd);]])],
db50aea6 AA	56	[am_cv_func_iconv=yes])
88fa57d7 KC	57	if test "$am_cv_func_iconv" != yes; then
	58	am_save_LIBS="$LIBS"
	59	LIBS="$LIBS $LIBICONV"
db50aea6 AA	60	AC_LINK_IFELSE(
	61	[AC_LANG_PROGRAM(
	62	[[
	63	#include <stdlib.h>
	64	#include <iconv.h>
	65	]],
	66	[[iconv_t cd = iconv_open("","");
	67	iconv(cd,NULL,NULL,NULL,NULL);
	68	iconv_close(cd);]])],
	69	[am_cv_lib_iconv=yes]
	70	[am_cv_func_iconv=yes])
88fa57d7 KC	71	LIBS="$am_save_LIBS"
	72	fi
	73	])
	74	if test "$am_cv_func_iconv" = yes; then
db50aea6 AA	75	AC_CACHE_CHECK([for working iconv], [am_cv_func_iconv_works], [
	76	dnl This tests against bugs in AIX 5.1, AIX 6.1..7.1, HP-UX 11.11,
	77	dnl Solaris 10.
	78	am_save_LIBS="$LIBS"
	79	if test $am_cv_lib_iconv = yes; then
	80	LIBS="$LIBS $LIBICONV"
	81	fi
	82	am_cv_func_iconv_works=no
	83	for ac_iconv_const in '' 'const'; do
	84	AC_RUN_IFELSE(
	85	[AC_LANG_PROGRAM(
	86	[[
	87	#include <iconv.h>
	88	#include <string.h>
	89
	90	#ifndef ICONV_CONST
	91	# define ICONV_CONST $ac_iconv_const
	92	#endif
	93	]],
	94	[[int result = 0;
	95	/* Test against AIX 5.1...7.2 bug: Failures are not distinguishable from
	96	successful returns. This is even documented in
	97	<https://www.ibm.com/support/knowledgecenter/ssw_aix_72/i_bostechref/iconv.html> */
	98	{
	99	iconv_t cd_utf8_to_88591 = iconv_open ("ISO8859-1", "UTF-8");
	100	if (cd_utf8_to_88591 != (iconv_t)(-1))
	101	{
	102	static ICONV_CONST char input[] = "\342\202\254"; /* EURO SIGN */
	103	char buf[10];
	104	ICONV_CONST char *inptr = input;
	105	size_t inbytesleft = strlen (input);
	106	char *outptr = buf;
	107	size_t outbytesleft = sizeof (buf);
	108	size_t res = iconv (cd_utf8_to_88591,
	109	&inptr, &inbytesleft,
	110	&outptr, &outbytesleft);
	111	if (res == 0)
	112	result \|= 1;
	113	iconv_close (cd_utf8_to_88591);
	114	}
	115	}
	116	/* Test against Solaris 10 bug: Failures are not distinguishable from
	117	successful returns. */
	118	{
	119	iconv_t cd_ascii_to_88591 = iconv_open ("ISO8859-1", "646");
	120	if (cd_ascii_to_88591 != (iconv_t)(-1))
	121	{
	122	static ICONV_CONST char input[] = "\263";
	123	char buf[10];
	124	ICONV_CONST char *inptr = input;
	125	size_t inbytesleft = strlen (input);
	126	char *outptr = buf;
	127	size_t outbytesleft = sizeof (buf);
	128	size_t res = iconv (cd_ascii_to_88591,
	129	&inptr, &inbytesleft,
	130	&outptr, &outbytesleft);
	131	if (res == 0)
	132	result \|= 2;
	133	iconv_close (cd_ascii_to_88591);
	134	}
	135	}
	136	/* Test against AIX 6.1..7.1 bug: Buffer overrun. */
	137	{
	138	iconv_t cd_88591_to_utf8 = iconv_open ("UTF-8", "ISO-8859-1");
139	if (cd_88591_to_utf8 != (iconv_t)(-1))
140	{
141	static ICONV_CONST char input[] = "\304";
142	static char buf[2] = { (char)0xDE, (char)0xAD };
143	ICONV_CONST char *inptr = input;
144	size_t inbytesleft = 1;
145	char *outptr = buf;
146	size_t outbytesleft = 1;
147	size_t res = iconv (cd_88591_to_utf8,
148	&inptr, &inbytesleft,
149	&outptr, &outbytesleft);
150	if (res != (size_t)(-1) \|\| outptr - buf > 1 \|\| buf[1] != (char)0xAD)
151	result \|= 4;
152	iconv_close (cd_88591_to_utf8);
153	}
154	}
155	#if 0 /* This bug could be worked around by the caller. */
156	/* Test against HP-UX 11.11 bug: Positive return value instead of 0. */
157	{
158	iconv_t cd_88591_to_utf8 = iconv_open ("utf8", "iso88591");
159	if (cd_88591_to_utf8 != (iconv_t)(-1))
160	{
161	static ICONV_CONST char input[] = "\304rger mit b\366sen B\374bchen ohne Augenma\337";
162	char buf[50];
163	ICONV_CONST char *inptr = input;
164	size_t inbytesleft = strlen (input);
165	char *outptr = buf;
166	size_t outbytesleft = sizeof (buf);
167	size_t res = iconv (cd_88591_to_utf8,
168	&inptr, &inbytesleft,
169	&outptr, &outbytesleft);
170	if ((int)res > 0)
171	result \|= 8;
172	iconv_close (cd_88591_to_utf8);
173	}
174	}
175	#endif
176	/* Test against HP-UX 11.11 bug: No converter from EUC-JP to UTF-8 is
177	provided. */
178	{
179	/* Try standardized names. */
180	iconv_t cd1 = iconv_open ("UTF-8", "EUC-JP");
181	/* Try IRIX, OSF/1 names. */
182	iconv_t cd2 = iconv_open ("UTF-8", "eucJP");
183	/* Try AIX names. */
184	iconv_t cd3 = iconv_open ("UTF-8", "IBM-eucJP");
185	/* Try HP-UX names. */
186	iconv_t cd4 = iconv_open ("utf8", "eucJP");
187	if (cd1 == (iconv_t)(-1) && cd2 == (iconv_t)(-1)
188	&& cd3 == (iconv_t)(-1) && cd4 == (iconv_t)(-1))
189	result \|= 16;
190	if (cd1 != (iconv_t)(-1))
191	iconv_close (cd1);
192	if (cd2 != (iconv_t)(-1))
193	iconv_close (cd2);
194	if (cd3 != (iconv_t)(-1))
195	iconv_close (cd3);
196	if (cd4 != (iconv_t)(-1))
197	iconv_close (cd4);
198	}
199	return result;
200	]])],
201	[am_cv_func_iconv_works=yes], ,
202	[case "$host_os" in
203	aix* \| hpux*) am_cv_func_iconv_works="guessing no" ;;
204	*) am_cv_func_iconv_works="guessing yes" ;;
205	esac])
206	test "$am_cv_func_iconv_works" = no \|\| break
207	done
208	LIBS="$am_save_LIBS"
209	])
210	case "$am_cv_func_iconv_works" in
211	*no) am_func_iconv=no am_cv_lib_iconv=no ;;
212	*) am_func_iconv=yes ;;
213	esac
214	else
215	am_func_iconv=no am_cv_lib_iconv=no
216	fi
217	if test "$am_func_iconv" = yes; then
218	AC_DEFINE([HAVE_ICONV], [1],
219	[Define if you have the iconv() function and it works.])
88fa57d7 KC	220	fi
	221	if test "$am_cv_lib_iconv" = yes; then
	222	AC_MSG_CHECKING([how to link with libiconv])
	223	AC_MSG_RESULT([$LIBICONV])
	224	else
db50aea6 AA	225	dnl If $LIBICONV didn't lead to a usable library, we don't need $INCICONV
	226	dnl either.
	227	CPPFLAGS="$am_save_CPPFLAGS"
88fa57d7 KC	228	LIBICONV=
	229	LTLIBICONV=
	230	fi
db50aea6 AA	231	AC_SUBST([LIBICONV])
db50aea6 AA	232	AC_SUBST([LTLIBICONV])
88fa57d7 KC	233	])
88fa57d7 KC	234
db50aea6 AA	235	dnl Define AM_ICONV using AC_DEFUN_ONCE, in order to avoid warnings like
	236	dnl "warning: AC_REQUIRE: `AM_ICONV' was expanded before it was required".
	237	AC_DEFUN_ONCE([AM_ICONV],
88fa57d7 KC	238	[
	239	AM_ICONV_LINK
	240	if test "$am_cv_func_iconv" = yes; then
db50aea6 AA	241	AC_CACHE_CHECK([whether iconv is compatible with its POSIX signature],
	242	[gl_cv_iconv_nonconst],
	243	[AC_COMPILE_IFELSE(
	244	[AC_LANG_PROGRAM(
	245	[[
88fa57d7 KC	246	#include <stdlib.h>
	247	#include <iconv.h>
	248	extern
	249	#ifdef __cplusplus
	250	"C"
	251	#endif
88fa57d7	252	size_t iconv (iconv_t cd, char * inbuf, size_t inbytesleft, char * outbuf, size_t outbytesleft);
db50aea6 AA	253	]],
	254	[[]])],
	255	[gl_cv_iconv_nonconst=yes],
	256	[gl_cv_iconv_nonconst=no])
	257	])
	258	else
	259	dnl When compiling GNU libiconv on a system that does not have iconv yet,
	260	dnl pick the POSIX compliant declaration without 'const'.
	261	gl_cv_iconv_nonconst=yes
	262	fi
	263	if test $gl_cv_iconv_nonconst = yes; then
	264	iconv_arg1=""
	265	else
	266	iconv_arg1="const"
	267	fi
	268	AC_DEFINE_UNQUOTED([ICONV_CONST], [$iconv_arg1],
	269	[Define as const if the declaration of iconv() needs const.])
	270	dnl Also substitute ICONV_CONST in the gnulib generated <iconv.h>.
	271	m4_ifdef([gl_ICONV_H_DEFAULTS],
	272	[AC_REQUIRE([gl_ICONV_H_DEFAULTS])
	273	if test $gl_cv_iconv_nonconst != yes; then
	274	ICONV_CONST="const"
	275	fi
	276	])
	277
	278	dnl A summary result, for those packages which want to print a summary at the
	279	dnl end of the configuration.
	280	if test "$am_func_iconv" = yes; then
	281	if test -n "$LIBICONV"; then
	282	am_cv_func_iconv_summary='yes, in libiconv'
	283	else
	284	am_cv_func_iconv_summary='yes, in libc'
	285	fi
	286	else
	287	if test "$am_cv_func_iconv" = yes; then
	288	am_cv_func_iconv_summary='not working, consider installing GNU libiconv'
	289	else
	290	am_cv_func_iconv_summary='no, consider installing GNU libiconv'
	291	fi
88fa57d7 KC	292	fi
88fa57d7 KC	293	])