* Makefile.in (clean): Remove non-existant regexp dir.

* collate.h: New header.
	(__collate_range_cmp): Declare.
	(__collate_load_error): Define.
	* glob.cc: Pull in latest version from FreeBSD.  Simplify and reduce
	Cygwin-specific changes.
	* regex/regcomp.c: Include collate.h on Cygwin as well.
	(__collate_range_cmp): Move from here...
	* nlsfuncs.cc (__collate_range_cmp): ...to here.

	* miscfuncs.cc (thread_wrapper): Fix typo in comment.
	(CygwinCreateThread): Take dead zone of Windows stack into account.
	Change the way how the stack is commited and how to handle guardpages.
	Explain how and why.
	* thread.h (PTHREAD_DEFAULT_STACKSIZE): Change definition.  Explain why.

winsup/cygwin/collate.h

@@ -0,0 +1,23 @@
+/* collate.h: Internal BSD libc header, used in glob and regcomp, for instance.
+
+   Copyright 2012 Red Hat, Inc.
+
+This file is part of Cygwin.
+
+This software is a copyrighted work licensed under the terms of the
+Cygwin license.  Please consult the file "CYGWIN_LICENSE" for
+details. */
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* We never have a collate load error. */
+const int __collate_load_error = 0;
+
+int __collate_range_cmp (int c1, int c2);
+
+#ifdef __cplusplus
+};
+#endif