X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;ds=sidebyside;f=includes%2Frts%2Fstorage%2FMBlock.h;h=0943d4cec312b38d45d958d60f6a28305251acbe;hb=b3bd828c358cbd79887dbd873357e265d8d6060a;hp=03396c1fd7e776f8d27f5b6d63131e10b226a69e;hpb=a2a67cd520b9841114d69a87a423dabcb3b4368e;p=ghc-hetmet.git

diff --git a/includes/rts/storage/MBlock.h b/includes/rts/storage/MBlock.h
index 03396c1..0943d4c 100644
--- a/includes/rts/storage/MBlock.h
+++ b/includes/rts/storage/MBlock.h
@@ -24,6 +24,11 @@ extern void *getFirstMBlock(void);
 extern void *getNextMBlock(void *mblock);
 #endif
 
+#ifdef THREADED_RTS
+// needed for HEAP_ALLOCED below
+extern SpinLock gc_alloc_block_sync;
+#endif
+
 /* -----------------------------------------------------------------------------
    The HEAP_ALLOCED() test.