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-rw-r--r--src/pkg/runtime/linux/os.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/pkg/runtime/linux/os.h b/src/pkg/runtime/linux/os.h
index fd6ccffc3..387fd4321 100644
--- a/src/pkg/runtime/linux/os.h
+++ b/src/pkg/runtime/linux/os.h
@@ -8,3 +8,5 @@ int32 clone(int32, void*, M*, G*, void(*)(void));
struct Sigaction;
void rt_sigaction(uintptr, struct Sigaction*, void*, uintptr);
+
+void sigaltstack(Sigaltstack*, Sigaltstack*);