X-Git-Url: https://git.lyx.org/gitweb/?a=blobdiff_plain;f=src%2FLString.h;h=25809cba739ad9778241ed418e950b78c39b7638;hb=d11fd01ce743c4974a96f241a99853f46078c80c;hp=0f2eccc8cdeaeb8538f7058a89ae37ef2b9b8c89;hpb=0088121bd8c3fc7f2109e8dc9b22b73ca193f20e;p=lyx.git

diff --git a/src/LString.h b/src/LString.h
index 0f2eccc8cd..25809cba73 100644
--- a/src/LString.h
+++ b/src/LString.h
@@ -1,22 +1,32 @@
 // -*- C++ -*-
 /* This file is part of
  * ======================================================
- * 
+ *
  *           LyX, The Document Processor
- * 	 
+ *
  *	    Copyright 1995 Matthias Ettrich
- *          Copyright 1995-2000 The LyX Team.
+ *          Copyright 1995-2001 The LyX Team.
  *
  * ====================================================== */
 
 #ifndef LSTRING_H
-#define LSTRING_H 
+#define LSTRING_H
+
+#ifndef _CONFIG_H
+#error The <config.h> header should always be included before LString.h
+#endif
 
 #ifndef USE_INCLUDED_STRING
 #include <string>
 using std::string;
 #else
+#ifdef __STRING__
+#error The <string> header has been included before LString.h
+#else
+#define __STRING__
+#endif
 #include "support/lyxstring.h"
+// using lyx::string;
 typedef lyxstring string;
 #endif
 #endif