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Diffstat (limited to 'gl/m4/mbrtowc.m4')
-rw-r--r--gl/m4/mbrtowc.m4281
1 files changed, 234 insertions, 47 deletions
diff --git a/gl/m4/mbrtowc.m4 b/gl/m4/mbrtowc.m4
index 606de5c9..4c9f3886 100644
--- a/gl/m4/mbrtowc.m4
+++ b/gl/m4/mbrtowc.m4
@@ -1,5 +1,5 @@
-# mbrtowc.m4 serial 17
-dnl Copyright (C) 2001-2002, 2004-2005, 2008-2010 Free Software Foundation,
+# mbrtowc.m4 serial 25
+dnl Copyright (C) 2001-2002, 2004-2005, 2008-2013 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,
@@ -15,16 +15,40 @@ AC_DEFUN([gl_FUNC_MBRTOWC],
AC_CHECK_FUNCS_ONCE([mbrtowc])
if test $ac_cv_func_mbrtowc = no; then
HAVE_MBRTOWC=0
+ AC_CHECK_DECLS([mbrtowc],,, [[
+/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before
+ <wchar.h>.
+ BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be
+ included before <wchar.h>. */
+#include <stddef.h>
+#include <stdio.h>
+#include <time.h>
+#include <wchar.h>
+]])
+ if test $ac_cv_have_decl_mbrtowc = yes; then
+ dnl On Minix 3.1.8, the system's <wchar.h> declares mbrtowc() although
+ dnl it does not have the function. Avoid a collision with gnulib's
+ dnl replacement.
+ REPLACE_MBRTOWC=1
+ fi
else
if test $REPLACE_MBSTATE_T = 1; then
REPLACE_MBRTOWC=1
else
- gl_MBRTOWC_NULL_ARG
+ gl_MBRTOWC_NULL_ARG1
+ gl_MBRTOWC_NULL_ARG2
gl_MBRTOWC_RETVAL
gl_MBRTOWC_NUL_RETVAL
- case "$gl_cv_func_mbrtowc_null_arg" in
+ case "$gl_cv_func_mbrtowc_null_arg1" in
+ *yes) ;;
+ *) AC_DEFINE([MBRTOWC_NULL_ARG1_BUG], [1],
+ [Define if the mbrtowc function has the NULL pwc argument bug.])
+ REPLACE_MBRTOWC=1
+ ;;
+ esac
+ case "$gl_cv_func_mbrtowc_null_arg2" in
*yes) ;;
- *) AC_DEFINE([MBRTOWC_NULL_ARG_BUG], [1],
+ *) AC_DEFINE([MBRTOWC_NULL_ARG2_BUG], [1],
[Define if the mbrtowc function has the NULL string argument bug.])
REPLACE_MBRTOWC=1
;;
@@ -45,11 +69,6 @@ AC_DEFUN([gl_FUNC_MBRTOWC],
esac
fi
fi
- if test $HAVE_MBRTOWC = 0 || test $REPLACE_MBRTOWC = 1; then
- gl_REPLACE_WCHAR_H
- AC_LIBOBJ([mbrtowc])
- gl_PREREQ_MBRTOWC
- fi
])
dnl Test whether mbsinit() and mbrtowc() need to be overridden in a way that
@@ -80,9 +99,6 @@ AC_DEFUN([gl_MBSTATE_T_BROKEN],
else
REPLACE_MBSTATE_T=1
fi
- if test $REPLACE_MBSTATE_T = 1; then
- gl_REPLACE_WCHAR_H
- fi
])
dnl Test whether mbrtowc puts the state into non-initial state when parsing an
@@ -101,16 +117,24 @@ AC_DEFUN([gl_MBRTOWC_INCOMPLETE_STATE],
dnl is present.
changequote(,)dnl
case "$host_os" in
- # Guess no on AIX and OSF/1.
- osf*) gl_cv_func_mbrtowc_incomplete_state="guessing no" ;;
- # Guess yes otherwise.
- *) gl_cv_func_mbrtowc_incomplete_state="guessing yes" ;;
+ # Guess no on AIX and OSF/1.
+ aix* | osf*) gl_cv_func_mbrtowc_incomplete_state="guessing no" ;;
+ # Guess yes otherwise.
+ *) gl_cv_func_mbrtowc_incomplete_state="guessing yes" ;;
esac
changequote([,])dnl
if test $LOCALE_JA != none; then
- AC_TRY_RUN([
+ AC_RUN_IFELSE(
+ [AC_LANG_SOURCE([[
#include <locale.h>
#include <string.h>
+/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before
+ <wchar.h>.
+ BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be
+ included before <wchar.h>. */
+#include <stddef.h>
+#include <stdio.h>
+#include <time.h>
#include <wchar.h>
int main ()
{
@@ -126,7 +150,7 @@ int main ()
return 1;
}
return 0;
-}],
+}]])],
[gl_cv_func_mbrtowc_incomplete_state=yes],
[gl_cv_func_mbrtowc_incomplete_state=no],
[:])
@@ -156,10 +180,18 @@ changequote(,)dnl
esac
changequote([,])dnl
if test $LOCALE_ZH_CN != none; then
- AC_TRY_RUN([
+ AC_RUN_IFELSE(
+ [AC_LANG_SOURCE([[
#include <locale.h>
#include <stdlib.h>
#include <string.h>
+/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before
+ <wchar.h>.
+ BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be
+ included before <wchar.h>. */
+#include <stddef.h>
+#include <stdio.h>
+#include <time.h>
#include <wchar.h>
int main ()
{
@@ -178,7 +210,7 @@ int main ()
return 1;
}
return 0;
-}],
+}]])],
[gl_cv_func_mbrtowc_sanitycheck=yes],
[gl_cv_func_mbrtowc_sanitycheck=no],
[:])
@@ -186,31 +218,109 @@ int main ()
])
])
+dnl Test whether mbrtowc supports a NULL pwc argument correctly.
+dnl Result is gl_cv_func_mbrtowc_null_arg1.
+
+AC_DEFUN([gl_MBRTOWC_NULL_ARG1],
+[
+ AC_REQUIRE([AC_PROG_CC])
+ AC_REQUIRE([gt_LOCALE_FR_UTF8])
+ AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
+ AC_CACHE_CHECK([whether mbrtowc handles a NULL pwc argument],
+ [gl_cv_func_mbrtowc_null_arg1],
+ [
+ dnl Initial guess, used when cross-compiling or when no suitable locale
+ dnl is present.
+changequote(,)dnl
+ case "$host_os" in
+ # Guess no on Solaris.
+ solaris*) gl_cv_func_mbrtowc_null_arg1="guessing no" ;;
+ # Guess yes otherwise.
+ *) gl_cv_func_mbrtowc_null_arg1="guessing yes" ;;
+ esac
+changequote([,])dnl
+ if test $LOCALE_FR_UTF8 != none; then
+ AC_RUN_IFELSE(
+ [AC_LANG_SOURCE([[
+#include <locale.h>
+#include <stdlib.h>
+#include <string.h>
+/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before
+ <wchar.h>.
+ BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be
+ included before <wchar.h>. */
+#include <stddef.h>
+#include <stdio.h>
+#include <time.h>
+#include <wchar.h>
+int main ()
+{
+ int result = 0;
+
+ if (setlocale (LC_ALL, "$LOCALE_FR_UTF8") != NULL)
+ {
+ char input[] = "\303\237er";
+ mbstate_t state;
+ wchar_t wc;
+ size_t ret;
+
+ memset (&state, '\0', sizeof (mbstate_t));
+ wc = (wchar_t) 0xBADFACE;
+ ret = mbrtowc (&wc, input, 5, &state);
+ if (ret != 2)
+ result |= 1;
+ if (!mbsinit (&state))
+ result |= 2;
+
+ memset (&state, '\0', sizeof (mbstate_t));
+ ret = mbrtowc (NULL, input, 5, &state);
+ if (ret != 2) /* Solaris 7 fails here: ret is -1. */
+ result |= 4;
+ if (!mbsinit (&state))
+ result |= 8;
+ }
+ return result;
+}]])],
+ [gl_cv_func_mbrtowc_null_arg1=yes],
+ [gl_cv_func_mbrtowc_null_arg1=no],
+ [:])
+ fi
+ ])
+])
+
dnl Test whether mbrtowc supports a NULL string argument correctly.
-dnl Result is gl_cv_func_mbrtowc_null_arg.
+dnl Result is gl_cv_func_mbrtowc_null_arg2.
-AC_DEFUN([gl_MBRTOWC_NULL_ARG],
+AC_DEFUN([gl_MBRTOWC_NULL_ARG2],
[
AC_REQUIRE([AC_PROG_CC])
AC_REQUIRE([gt_LOCALE_FR_UTF8])
AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
AC_CACHE_CHECK([whether mbrtowc handles a NULL string argument],
- [gl_cv_func_mbrtowc_null_arg],
+ [gl_cv_func_mbrtowc_null_arg2],
[
dnl Initial guess, used when cross-compiling or when no suitable locale
dnl is present.
changequote(,)dnl
case "$host_os" in
# Guess no on OSF/1.
- osf*) gl_cv_func_mbrtowc_null_arg="guessing no" ;;
+ osf*) gl_cv_func_mbrtowc_null_arg2="guessing no" ;;
# Guess yes otherwise.
- *) gl_cv_func_mbrtowc_null_arg="guessing yes" ;;
+ *) gl_cv_func_mbrtowc_null_arg2="guessing yes" ;;
esac
changequote([,])dnl
if test $LOCALE_FR_UTF8 != none; then
- AC_TRY_RUN([
+ AC_RUN_IFELSE(
+ [AC_LANG_SOURCE([[
#include <locale.h>
#include <string.h>
+/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before
+ <wchar.h>.
+ BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be
+ included before <wchar.h>. */
+#include <stddef.h>
+#include <stdio.h>
+#include <time.h>
#include <wchar.h>
int main ()
{
@@ -228,7 +338,10 @@ int main ()
return 1;
}
return 0;
-}], [gl_cv_func_mbrtowc_null_arg=yes], [gl_cv_func_mbrtowc_null_arg=no], [:])
+}]])],
+ [gl_cv_func_mbrtowc_null_arg2=yes],
+ [gl_cv_func_mbrtowc_null_arg2=no],
+ [:])
fi
])
])
@@ -243,7 +356,7 @@ AC_DEFUN([gl_MBRTOWC_RETVAL],
AC_REQUIRE([AC_PROG_CC])
AC_REQUIRE([gt_LOCALE_FR_UTF8])
AC_REQUIRE([gt_LOCALE_JA])
- AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
+ AC_REQUIRE([AC_CANONICAL_HOST])
AC_CACHE_CHECK([whether mbrtowc has a correct return value],
[gl_cv_func_mbrtowc_retval],
[
@@ -251,19 +364,30 @@ AC_DEFUN([gl_MBRTOWC_RETVAL],
dnl is present.
changequote(,)dnl
case "$host_os" in
- # Guess no on HP-UX and Solaris.
- hpux* | solaris*) gl_cv_func_mbrtowc_retval="guessing no" ;;
- # Guess yes otherwise.
- *) gl_cv_func_mbrtowc_retval="guessing yes" ;;
+ # Guess no on HP-UX, Solaris, native Windows.
+ hpux* | solaris* | mingw*) gl_cv_func_mbrtowc_retval="guessing no" ;;
+ # Guess yes otherwise.
+ *) gl_cv_func_mbrtowc_retval="guessing yes" ;;
esac
changequote([,])dnl
- if test $LOCALE_FR_UTF8 != none || test $LOCALE_JA != none; then
- AC_TRY_RUN([
+ if test $LOCALE_FR_UTF8 != none || test $LOCALE_JA != none \
+ || { case "$host_os" in mingw*) true;; *) false;; esac; }; then
+ AC_RUN_IFELSE(
+ [AC_LANG_SOURCE([[
#include <locale.h>
#include <string.h>
+/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before
+ <wchar.h>.
+ BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be
+ included before <wchar.h>. */
+#include <stddef.h>
+#include <stdio.h>
+#include <time.h>
#include <wchar.h>
int main ()
{
+ int result = 0;
+ int found_some_locale = 0;
/* This fails on Solaris. */
if (setlocale (LC_ALL, "$LOCALE_FR_UTF8") != NULL)
{
@@ -276,8 +400,9 @@ int main ()
{
input[1] = '\0';
if (mbrtowc (&wc, input + 2, 5, &state) != 1)
- return 1;
+ result |= 1;
}
+ found_some_locale = 1;
}
/* This fails on HP-UX 11.11. */
if (setlocale (LC_ALL, "$LOCALE_JA") != NULL)
@@ -291,13 +416,63 @@ int main ()
{
input[1] = '\0';
if (mbrtowc (&wc, input + 2, 5, &state) != 2)
- return 1;
+ result |= 2;
}
+ found_some_locale = 1;
}
- return 0;
-}],
+ /* This fails on native Windows. */
+ if (setlocale (LC_ALL, "Japanese_Japan.932") != NULL)
+ {
+ char input[] = "<\223\372\226\173\214\352>"; /* "<日本語>" */
+ mbstate_t state;
+ wchar_t wc;
+
+ memset (&state, '\0', sizeof (mbstate_t));
+ if (mbrtowc (&wc, input + 3, 1, &state) == (size_t)(-2))
+ {
+ input[3] = '\0';
+ if (mbrtowc (&wc, input + 4, 4, &state) != 1)
+ result |= 4;
+ }
+ found_some_locale = 1;
+ }
+ if (setlocale (LC_ALL, "Chinese_Taiwan.950") != NULL)
+ {
+ char input[] = "<\244\351\245\273\273\171>"; /* "<日本語>" */
+ mbstate_t state;
+ wchar_t wc;
+
+ memset (&state, '\0', sizeof (mbstate_t));
+ if (mbrtowc (&wc, input + 3, 1, &state) == (size_t)(-2))
+ {
+ input[3] = '\0';
+ if (mbrtowc (&wc, input + 4, 4, &state) != 1)
+ result |= 8;
+ }
+ found_some_locale = 1;
+ }
+ if (setlocale (LC_ALL, "Chinese_China.936") != NULL)
+ {
+ char input[] = "<\310\325\261\276\325\132>"; /* "<日本語>" */
+ mbstate_t state;
+ wchar_t wc;
+
+ memset (&state, '\0', sizeof (mbstate_t));
+ if (mbrtowc (&wc, input + 3, 1, &state) == (size_t)(-2))
+ {
+ input[3] = '\0';
+ if (mbrtowc (&wc, input + 4, 4, &state) != 1)
+ result |= 16;
+ }
+ found_some_locale = 1;
+ }
+ return (found_some_locale ? result : 77);
+}]])],
[gl_cv_func_mbrtowc_retval=yes],
- [gl_cv_func_mbrtowc_retval=no],
+ [if test $? != 77; then
+ gl_cv_func_mbrtowc_retval=no
+ fi
+ ],
[:])
fi
])
@@ -325,9 +500,17 @@ changequote(,)dnl
esac
changequote([,])dnl
if test $LOCALE_ZH_CN != none; then
- AC_TRY_RUN([
+ AC_RUN_IFELSE(
+ [AC_LANG_SOURCE([[
#include <locale.h>
#include <string.h>
+/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before
+ <wchar.h>.
+ BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be
+ included before <wchar.h>. */
+#include <stddef.h>
+#include <stdio.h>
+#include <time.h>
#include <wchar.h>
int main ()
{
@@ -342,7 +525,7 @@ int main ()
return 1;
}
return 0;
-}],
+}]])],
[gl_cv_func_mbrtowc_nul_retval=yes],
[gl_cv_func_mbrtowc_nul_retval=no],
[:])
@@ -358,10 +541,8 @@ AC_DEFUN([gl_PREREQ_MBRTOWC], [
dnl From Paul Eggert
-dnl This override of an autoconf macro can be removed when autoconf 2.60 or
-dnl newer can be assumed everywhere.
+dnl This is an override of an autoconf macro.
-m4_if(m4_version_compare(m4_defn([m4_PACKAGE_VERSION]),[2.60]),[-1],[
AC_DEFUN([AC_FUNC_MBRTOWC],
[
dnl Same as AC_FUNC_MBRTOWC in autoconf-2.60.
@@ -369,7 +550,14 @@ AC_DEFUN([AC_FUNC_MBRTOWC],
gl_cv_func_mbrtowc,
[AC_LINK_IFELSE(
[AC_LANG_PROGRAM(
- [[#include <wchar.h>]],
+ [[/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be
+ included before <wchar.h>.
+ BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h>
+ must be included before <wchar.h>. */
+ #include <stddef.h>
+ #include <stdio.h>
+ #include <time.h>
+ #include <wchar.h>]],
[[wchar_t wc;
char const s[] = "";
size_t n = 1;
@@ -382,4 +570,3 @@ AC_DEFUN([AC_FUNC_MBRTOWC],
[Define to 1 if mbrtowc and mbstate_t are properly declared.])
fi
])
-])
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