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add numSparks :: IO Int (#4167)
[ghc-base.git]
/
Debug
/
Trace.hs
diff --git
a/Debug/Trace.hs
b/Debug/Trace.hs
index
c30c811
..
742044e
100644
(file)
--- a/
Debug/Trace.hs
+++ b/
Debug/Trace.hs
@@
-41,7
+41,9
@@
putTraceMsg msg = do
withCString msg $ \cmsg ->
debugBelch cfmt cmsg
withCString msg $ \cmsg ->
debugBelch cfmt cmsg
-foreign import ccall unsafe "RtsMessages.h debugBelch"
+-- don't use debugBelch() directly, because we cannot call varargs functions
+-- using the FFI.
+foreign import ccall unsafe "HsBase.h debugBelch2"
debugBelch :: CString -> CString -> IO ()
#endif
debugBelch :: CString -> CString -> IO ()
#endif