X-Git-Url: http://git.hcoop.net/bpt/emacs.git/blobdiff_plain/c39cc7d149d28060c40bc206eb8a63f7a0636301..230fe2a5a10f2bc128f354e3fb1b48536b1f143b:/lib/openat.h

diff --git a/lib/openat.h b/lib/openat.h
index eb90990da1..7208f4459f 100644
--- a/lib/openat.h
+++ b/lib/openat.h
@@ -26,6 +26,9 @@
 #include <unistd.h>
 #include <stdbool.h>
 
+#ifndef _GL_INLINE_HEADER_BEGIN
+ #error "Please include config.h first."
+#endif
 _GL_INLINE_HEADER_BEGIN
 
 #if !HAVE_OPENAT