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[gnulib.git] / lib / gl_xoset.h

diff --git a/lib/gl_xoset.h b/lib/gl_xoset.h
index 7ab0d49..74dc31e 100644 (file)
--- a/lib/gl_xoset.h
+++ b/lib/gl_xoset.h
@@ -1,5 +1,5 @@
 /* Abstract ordered set data type, with out-of-memory checking.
-   Copyright (C) 2009-2013 Free Software Foundation, Inc.
+   Copyright (C) 2009-2014 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2009.
 
    This program is free software: you can redistribute it and/or modify
@@ -21,6 +21,9 @@
 #include "gl_oset.h"
 #include "xalloc.h"
 
+#ifndef _GL_INLINE_HEADER_BEGIN
+ #error "Please include config.h first."
+#endif
 _GL_INLINE_HEADER_BEGIN
 #ifndef GL_XOSET_INLINE
 # define GL_XOSET_INLINE _GL_INLINE