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-rw-r--r--gcc-4.9/gcc/testsuite/gcc.dg/cpp/trad/mi4.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/cpp/trad/mi4.c b/gcc-4.9/gcc/testsuite/gcc.dg/cpp/trad/mi4.c
new file mode 100644
index 000000000..c886cc2c8
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.dg/cpp/trad/mi4.c
@@ -0,0 +1,10 @@
+/* Copyright (C) 2000 Free Software Foundation, Inc. */
+
+/* { dg-do preprocess } */
+
+/* Undefining a macro guard and re-including the file used to confuse
+ file caching in cppfiles.c, and attempt to open a bad fd. */
+
+#include "mi1c.h"
+#undef CPP_MIC_H
+#include "mi1c.h"