X-Git-Url: https://git.hcoop.net/bpt/emacs.git/blobdiff_plain/c39cc7d149d28060c40bc206eb8a63f7a0636301..230fe2a5a10f2bc128f354e3fb1b48536b1f143b:/lib/binary-io.h

diff --git a/lib/binary-io.h b/lib/binary-io.h
index 317fe3d3c2..423c2ae3ff 100644
--- a/lib/binary-io.h
+++ b/lib/binary-io.h
@@ -25,6 +25,9 @@
    so we include it here first.  */
 #include <stdio.h>
 
+#ifndef _GL_INLINE_HEADER_BEGIN
+ #error "Please include config.h first."
+#endif
 _GL_INLINE_HEADER_BEGIN
 #ifndef BINARY_IO_INLINE
 # define BINARY_IO_INLINE _GL_INLINE