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-rw-r--r--rts/StgMiscClosures.cmm5
1 files changed, 5 insertions, 0 deletions
diff --git a/rts/StgMiscClosures.cmm b/rts/StgMiscClosures.cmm
index e9186e3500..b9aee516d0 100644
--- a/rts/StgMiscClosures.cmm
+++ b/rts/StgMiscClosures.cmm
@@ -18,6 +18,11 @@ import ghczmprim_GHCziTypes_Izh_info;
import AcquireSRWLockExclusive;
import ReleaseSRWLockExclusive;
+#if defined(PROF_SPIN)
+import whitehole_lockClosure_spin;
+import whitehole_lockClosure_yield;
+#endif
+
/* ----------------------------------------------------------------------------
Stack underflow
------------------------------------------------------------------------- */