From 5dfe10a13666c239a49511dda2402e7cd9c78e3b Mon Sep 17 00:00:00 2001
From: John Maddock <john@johnmaddock.co.uk>
Date: Sat, 18 Sep 2004 10:32:05 +0000
Subject: [PATCH] Fix for RW STL: undef wchar symbols before use

[SVN r25191]
---
 include/boost/regex/config/cwchar.hpp | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/include/boost/regex/config/cwchar.hpp b/include/boost/regex/config/cwchar.hpp
index 5ca5b0c0..970b0d2e 100644
--- a/include/boost/regex/config/cwchar.hpp
+++ b/include/boost/regex/config/cwchar.hpp
@@ -23,6 +23,29 @@
 #include <cwctype>
 #include <boost/config.hpp>
 
+#if defined(__STD_RWCOMPILER_H__) || defined(_RWSTD_VER)
+// apparently this is required for the RW STL on Linux:
+#undef iswalnum
+#undef iswalpha
+#undef iswblank
+#undef iswcntrl
+#undef iswdigit
+#undef iswgraph
+#undef iswlower
+#undef iswprint
+#undef iswprint
+#undef iswpunct
+#undef iswspace
+#undef iswupper
+#undef iswxdigit
+#undef iswctype
+#undef towlower
+#undef towupper
+#undef towctrans
+#undef wctrans
+#undef wctype
+#endif
+
 namespace std{
 
 #ifndef BOOST_NO_STDC_NAMESPACE