/* A substitute for ISO C99 <ctype.h>, for platforms on which it is incomplete.
- Copyright (C) 2009 Free Software Foundation, Inc.
+ Copyright (C) 2009, 2010 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
#ifndef _GL_CTYPE_H
#define _GL_CTYPE_H
+/* The definition of _GL_WARN_ON_USE is copied here. */
+
/* Return non-zero if c is a blank, i.e. a space or tab character. */
#if @GNULIB_ISBLANK@
# if !@HAVE_ISBLANK@
# endif
#elif defined GNULIB_POSIXCHECK
# undef isblank
-# define isblank(c) \
- (GL_LINK_WARNING ("isblank is unportable - " \
- "use gnulib module isblank for portability"), \
- isblank (c))
+# if HAVE_RAW_DECL_ISBLANK
+_GL_WARN_ON_USE (isblank, "isblank is unportable - "
+ "use gnulib module isblank for portability");
+# endif
#endif
#endif /* _GL_CTYPE_H */