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-rw-r--r--gcc/config/darwin.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/gcc/config/darwin.h b/gcc/config/darwin.h
index 43288f7..05b3472 100644
--- a/gcc/config/darwin.h
+++ b/gcc/config/darwin.h
@@ -40,6 +40,9 @@ Boston, MA 02110-1301, USA. */
#define OBJECT_FORMAT_MACHO
+/* Don't assume anything about the header files. */
+#define NO_IMPLICIT_EXTERN_C
+
/* Suppress g++ attempt to link in the math library automatically. */
#define MATH_LIBRARY ""