* Makefile.in (VPATH): Add regex directory.

(NM): new variable.
(OBSOLETE_FUNCTIONS): Ditto.
(NEW_FUNCTIONS): Ditto.
(install-headers): Install regex.h.
(install-man): New target.
(install): Use new target.
(DLL_OFILES): Add v8_reg* stuff.
(new-cygwin1.dll): Eliminate stamp-cygwin-lib creation.
(libcygwin.a): Remove obsolete functions from import lib.  Add new functions.
* configure.in: Detect 'nm' tool.
* configure: Regenerate.
* cygwin.din: Export posix_reg* functions.  Eliminate export of v8 reg*
functions.  This is now handled in object files themselves.
* regex/*: New files.
* regexp/v8_*.c: New files, renamed from non v8_ equivalents.

winsup/cygwin/regexp/v8_regerror.c

@@ -0,0 +1,28 @@
+/* regerror.c
+
+   Copyright 1996, 1998, 2001 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. */
+
+#include "winsup.h"
+#include "regexp.h"
+#include <stdio.h>
+
+void __declspec(dllexport)
+regerror(const char *s __attribute__ ((unused)))
+{
+#ifdef ERRAVAIL
+	error("regexp: %s", s);
+#else
+/*
+	fprintf(stderr, "regexp(3): %s\n", s);
+	exit(1);
+*/
+	return;	  /* let std. egrep handle errors */
+#endif
+	/* NOTREACHED */
+}