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-rw-r--r--gnu/lib/libstdc++/config.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/gnu/lib/libstdc++/config.h b/gnu/lib/libstdc++/config.h
index 1c183b7..1067c06 100644
--- a/gnu/lib/libstdc++/config.h
+++ b/gnu/lib/libstdc++/config.h
@@ -1,4 +1,7 @@
/* $FreeBSD$ */
+#ifndef __ISO_C_VISIBLE
+#include <sys/cdefs.h>
+#endif
/* config.h. Generated by configure. */
/* config.h.in. Generated from configure.ac by autoheader. */
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