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-rw-r--r--lib/system-quote.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/system-quote.h b/lib/system-quote.h
index 2046c06a7e..870a5c1107 100644
--- a/lib/system-quote.h
+++ b/lib/system-quote.h
@@ -46,6 +46,11 @@
is to truncate the entire command line.
*/
+/* This file uses _GL_ATTRIBUTE_MALLOC, _GL_ATTRIBUTE_RETURNS_NONNULL. */
+#if !_GL_CONFIG_H_INCLUDED
+ #error "Please include config.h first."
+#endif
+
#include <stdlib.h>
#ifdef __cplusplus