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-rw-r--r--gcc-4.9/gcc/config.in6
1 files changed, 6 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/config.in b/gcc-4.9/gcc/config.in
index 7883eb362..83c51ce68 100644
--- a/gcc-4.9/gcc/config.in
+++ b/gcc-4.9/gcc/config.in
@@ -144,6 +144,12 @@
#endif
+/* Define to warn for use of native system header directories. */
+#ifndef USED_FOR_TARGET
+#undef ENABLE_POISON_SYSTEM_DIRECTORIES
+#endif
+
+
/* Define if you want all operations on RTL (the basic data structure of the
optimizer and back end) to be checked for dynamic type safety at runtime.
This is quite expensive. */