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-rw-r--r--libgo/runtime/runtime.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/libgo/runtime/runtime.h b/libgo/runtime/runtime.h
index 399df51..89134c1 100644
--- a/libgo/runtime/runtime.h
+++ b/libgo/runtime/runtime.h
@@ -475,7 +475,7 @@ bool scanstackwithmap(void*)
bool doscanstack(G*, void*)
__asm__("runtime.doscanstack");
-bool runtime_usestackmaps;
+extern bool runtime_usestackmaps;
bool probestackmaps(void)
__asm__("runtime.probestackmaps");