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

[gnulib.git] / lib / freopen.c

diff --git a/lib/freopen.c b/lib/freopen.c
index 0decbaf..c763365 100644 (file)
--- a/lib/freopen.c
+++ b/lib/freopen.c
@@ -16,10 +16,13 @@
 
 /* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
 
+/* If the user's config.h happens to include <stdio.h>, let it include only
+   the system's <stdio.h> here, so that orig_freopen doesn't recurse to
+   rpl_freopen.  */
+#define __need_FILE
 #include <config.h>
 
 /* Get the original definition of freopen.  It might be defined as a macro.  */
-#define __need_FILE
 #include <stdio.h>
 #undef __need_FILE