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-rw-r--r--lib/gl_xlist.h9
1 files changed, 6 insertions, 3 deletions
diff --git a/lib/gl_xlist.h b/lib/gl_xlist.h
index f5fd929bbe..91ed804b9d 100644
--- a/lib/gl_xlist.h
+++ b/lib/gl_xlist.h
@@ -18,12 +18,15 @@
#ifndef _GL_XLIST_H
#define _GL_XLIST_H
+/* This file uses _GL_INLINE_HEADER_BEGIN, _GL_INLINE,
+ _GL_ATTRIBUTE_RETURNS_NONNULL. */
+#if !_GL_CONFIG_H_INCLUDED
+ #error "Please include config.h first."
+#endif
+
#include "gl_list.h"
#include "xalloc.h"
-#ifndef _GL_INLINE_HEADER_BEGIN
- #error "Please include config.h first."
-#endif
_GL_INLINE_HEADER_BEGIN
#ifndef GL_XLIST_INLINE
# define GL_XLIST_INLINE _GL_INLINE