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-rw-r--r--gnulib-m4/wctob.m491
1 files changed, 91 insertions, 0 deletions
diff --git a/gnulib-m4/wctob.m4 b/gnulib-m4/wctob.m4
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+# wctob.m4 serial 4
+dnl Copyright (C) 2008-2009 Free Software Foundation, 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.
+
+AC_DEFUN([gl_FUNC_WCTOB],
+[
+ AC_REQUIRE([gl_WCHAR_H_DEFAULTS])
+
+ AC_CHECK_FUNCS_ONCE([wctob])
+ if test $ac_cv_func_wctob = no; then
+ HAVE_DECL_WCTOB=0
+ gl_REPLACE_WCHAR_H
+ AC_LIBOBJ([wctob])
+ gl_PREREQ_WCTOB
+ else
+
+ dnl Solaris 9 has the wctob() function but it does not work.
+ AC_REQUIRE([AC_PROG_CC])
+ AC_REQUIRE([gt_LOCALE_FR])
+ AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
+ AC_CACHE_CHECK([whether wctob works],
+ [gl_cv_func_wctob_works],
+ [
+ dnl Initial guess, used when cross-compiling or when no suitable locale
+ dnl is present.
+changequote(,)dnl
+ case "$host_os" in
+ # Guess no on Solaris <= 9.
+ solaris2.[1-9] | solaris2.[1-9].*)
+ gl_cv_func_wctob_works="guessing no" ;;
+ # Guess yes otherwise.
+ *) gl_cv_func_wctob_works="guessing yes" ;;
+ esac
+changequote([,])dnl
+ if test $LOCALE_FR != none; then
+ AC_TRY_RUN([
+#include <locale.h>
+#include <string.h>
+#include <wchar.h>
+int main ()
+{
+ if (setlocale (LC_ALL, "$LOCALE_FR") != NULL)
+ {
+ wchar_t wc;
+
+ if (mbtowc (&wc, "\374", 1) == 1)
+ if (wctob (wc) != (unsigned char) '\374')
+ return 1;
+ }
+ return 0;
+}],
+ [gl_cv_func_wctob_works=yes],
+ [gl_cv_func_wctob_works=no],
+ [:])
+ fi
+ ])
+ case "$gl_cv_func_wctob_works" in
+ *yes) ;;
+ *) REPLACE_WCTOB=1 ;;
+ esac
+ if test $REPLACE_WCTOB = 1; then
+ gl_REPLACE_WCHAR_H
+ AC_LIBOBJ([wctob])
+ gl_PREREQ_WCTOB
+ else
+
+ dnl IRIX 6.5 has the wctob() function but does not declare it.
+ AC_CHECK_DECLS([wctob], [], [], [
+/* 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_wctob != yes; then
+ HAVE_DECL_WCTOB=0
+ gl_REPLACE_WCHAR_H
+ fi
+ fi
+ fi
+])
+
+# Prerequisites of lib/wctob.c.
+AC_DEFUN([gl_PREREQ_WCTOB], [
+ :
+])