-# wctype_h.m4 serial 5
+# wctype_h.m4 serial 10
dnl A placeholder for ISO C99 <wctype.h>, for platforms that lack it.
-dnl Copyright (C) 2006-2010 Free Software Foundation, Inc.
+dnl Copyright (C) 2006-2011 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.
HAVE_ISWCNTRL=0
fi
AC_SUBST([HAVE_ISWCNTRL])
+ AC_CHECK_FUNCS_ONCE([iswblank])
+ AC_CHECK_DECLS_ONCE([iswblank])
+ if test $ac_cv_func_iswblank = yes; then
+ HAVE_ISWBLANK=1
+ REPLACE_ISWBLANK=0
+ else
+ HAVE_ISWBLANK=0
+ if test $ac_cv_have_decl_iswblank = yes; then
+ REPLACE_ISWBLANK=1
+ else
+ REPLACE_ISWBLANK=0
+ fi
+ fi
+ AC_SUBST([HAVE_ISWBLANK])
+ AC_SUBST([REPLACE_ISWBLANK])
+
AC_CHECK_HEADERS_ONCE([wctype.h])
AC_REQUIRE([AC_C_INLINE])
dnl The other functions are likely broken in the same way.
AC_CACHE_CHECK([whether iswcntrl works], [gl_cv_func_iswcntrl_works],
[
- AC_RUN_IFELSE([AC_LANG_SOURCE([[
- #include <stddef.h>
- #include <stdio.h>
- #include <time.h>
- #include <wchar.h>
- #include <wctype.h>
- int main () { return iswprint ('x') == 0; }]])],
+ AC_RUN_IFELSE(
+ [AC_LANG_SOURCE([[
+ /* 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>
+ #include <wctype.h>
+ int main () { return iswprint ('x') == 0; }
+ ]])],
[gl_cv_func_iswcntrl_works=yes], [gl_cv_func_iswcntrl_works=no],
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <stdlib.h>
#if __GNU_LIBRARY__ == 1
REPLACE_ISWCNTRL=0
fi
AC_SUBST([REPLACE_ISWCNTRL])
+
+ if test $HAVE_ISWCNTRL = 0 || test $REPLACE_ISWCNTRL = 1; then
+ dnl Redefine all of iswcntrl, ..., towupper in <wctype.h>.
+ :
+ else
+ if test $HAVE_ISWBLANK = 0 || test $REPLACE_ISWBLANK = 1; then
+ dnl Redefine only iswblank.
+ AC_LIBOBJ([iswblank])
+ fi
+ fi
])