C library: Add wctype.h; Move lib_wctype.c to libc/wctype

libc/Makefile

@@ -88,6 +88,7 @@ include time/Make.defs
 include tls/Make.defs
 include unistd/Make.defs
 include wchar/Make.defs
+include wctype/Make.defs
 include wqueue/Make.defs
 
 # REVISIT: Backslash causes problems in $(COBJS) target

libc/README.txt

@@ -45,6 +45,7 @@ we have:
   time      - time.h
   unistd    - unistd.h
   wchar     - wchar.h
+  wctype    - wctype.h
 
 Most of these are "standard" header files; some are not: hex2bin.h and
 fixemath.h are non-standard.

libc/wctype/Make.defs

@@ -0,0 +1,48 @@
+############################################################################
+# libc/wctype/Make.defs
+#
+#   Copyright (C) 2016 Gregory Nutt. All rights reserved.
+#   Author: Gregory Nutt <gnutt@nuttx.org>
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in
+#    the documentation and/or other materials provided with the
+#    distribution.
+# 3. Neither the name NuttX nor the names of its contributors may be
+#    used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+#
+############################################################################
+
+ifeq ($(CONFIG_LIBC_WCHAR),y)
+
+# Add the internal C files to the build
+
+CSRCS += lib_wctype.c
+
+# Add the wctype directory to the build
+
+DEPPATH += --dep-path wctype
+VPATH += :wctype
+
+endif
+

libc/wctype/lib_wctype.c

@@ -1,5 +1,5 @@
 /****************************************************************************
- * libc/wchar/wctype.c
+ * libc/wctype/wctype.c
  *
  *    Copyright (c) 2002 Red Hat Incorporated.
  *    All rights reserved.