Avoid endless recursions if config.h includes some header files.

[gnulib.git] / lib / open.c

diff --git a/lib/open.c b/lib/open.c
index e60b619..ffd3b8d 100644 (file)
--- a/lib/open.c
+++ b/lib/open.c
@@ -16,13 +16,16 @@
 
 /* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
 
+/* If the user's config.h happens to include <fcntl.h>, let it include only
+   the system's <fcntl.h> here, so that orig_open doesn't recurse to
+   rpl_open.  */
+#define __need_system_fcntl_h
 #include <config.h>
 
 /* Get the original definition of open.  It might be defined as a macro.  */
-#define __need_system_fcntl_h
 #include <fcntl.h>
-#undef __need_system_fcntl_h
 #include <sys/types.h>
+#undef __need_system_fcntl_h
 
 static inline int
 orig_open (const char *filename, int flags, mode_t mode)