Refactored some platform dependent code into a new library,

lib/arch.  This should make porting easier.  Will probably
continue to refactor a little more, moving platform dependent
event handling stuff into lib/platform.

lib/arch/CMultibyteOS.cpp

@@ -0,0 +1,68 @@
+/*
+ * synergy -- mouse and keyboard sharing utility
+ * Copyright (C) 2002 Chris Schoeneman
+ * 
+ * This package is free software you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * found in the file COPYING that should have accompanied this file.
+ * 
+ * This package is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <string.h>
+#include <cwchar>
+
+class CArchMBStateImpl {
+public:
+	mbstate_t			m_mbstate;
+};
+
+//
+// use C library reentrant multibyte conversion
+//
+
+static
+void
+initMB()
+{
+	// do nothing
+}
+
+static
+void
+cleanMB()
+{
+	// do nothing
+}
+
+void
+ARCH_STRING::initMBState(CArchMBState state)
+{
+	memset(&state->m_mbstate, 0, sizeof(state->m_mbstate));
+}
+
+bool
+ARCH_STRING::isInitMBState(CArchMBState state)
+{
+	return (mbsinit(&state->m_mbstate) != 0);
+}
+
+int
+ARCH_STRING::convMBToWC(wchar_t* dst, const char* src,
+ 				 int n, CArchMBState state)
+{
+	wchar_t dummy;
+	return static_cast<int>(mbrtowc(dst != NULL ? dst : &dummy,
+							src, static_cast<size_t>(n), &state->m_mbstate));
+}
+
+int
+ARCH_STRING::convWCToMB(char* dst, wchar_t src, CArchMBState state)
+{
+	char dummy[MB_LEN_MAX];
+	return static_cast<int>(wcrtomb(dst != NULL ? dst : dummy,
+							src, &state->m_mbstate));
+}