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-rw-r--r--gcc-4.9/gcc/testsuite/gcc.dg/cpp/warn-unused-macros.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/cpp/warn-unused-macros.c b/gcc-4.9/gcc/testsuite/gcc.dg/cpp/warn-unused-macros.c
new file mode 100644
index 000000000..e1ce94eee
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.dg/cpp/warn-unused-macros.c
@@ -0,0 +1,4 @@
+// { dg-do preprocess }
+// { dg-options "-std=gnu99 -fdiagnostics-show-option -Wunused-macros" }
+
+#define X X // { dg-warning "macro \"X\" is not used .-Wunused-macros." }