diff --git a/LICENSE b/LICENSE
--- a/LICENSE
+++ b/LICENSE
@@ -1,4 +1,4 @@
-Copyright (c) 2007--2008, wren ng thornton.
+Copyright (c) 2007--2009, wren ng thornton.
 ALL RIGHTS RESERVED.
 
 Redistribution and use in source and binary forms, with or without
diff --git a/logfloat.cabal b/logfloat.cabal
--- a/logfloat.cabal
+++ b/logfloat.cabal
@@ -3,7 +3,7 @@
 ----------------------------------------------------------------
 
 Name:           logfloat
-Version:        0.12
+Version:        0.12.0.1
 Cabal-Version:  >= 1.2
 Build-Type:     Simple
 Stability:      experimental
@@ -45,13 +45,20 @@
         Build-depends: base < 3.0
     
     if flag(useFFI)
-        -- BUG: (Cabal 1.2 + Haddock) See the INSTALL file.
+        -- BUG (Cabal 1.2 + Haddock): See the INSTALL file.
         --GHC-Options: -D__USE_FFI__
         CPP-Options: -D__USE_FFI__
         includes: math.h
         extra-libraries: m
     
-    -- BUG: (Cabal <= 1.6 + Hugs) See the INSTALL file.
+    -- BUG (GHC 6.10.1): Can't mix FFI and -fvia-C
+    -- <http://hackage.haskell.org/trac/ghc/ticket/3117>
+    -- This is a momentary hack to keep it for 6.8
+    -- TODO: see if -fasm suffices for the benefits
+    if impl(ghc < 6.10)
+        GHC-Options: -fvia-C -optc-O3
+    
+    -- BUG (Cabal <= 1.6 + Hugs): See the INSTALL file.
     Hugs-Options: -98 +o
     if impl(hugs)
         -- BUG: (Cabal 1.2 + Haddock) See the INSTALL file.
diff --git a/src/Data/Number/LogFloat.hs b/src/Data/Number/LogFloat.hs
--- a/src/Data/Number/LogFloat.hs
+++ b/src/Data/Number/LogFloat.hs
@@ -15,7 +15,15 @@
 -- doesn't do what you want.
 -- cf <http://hackage.haskell.org/trac/ghc/ticket/2213>
 -- cf <http://www.mail-archive.com/glasgow-haskell-users@haskell.org/msg14313.html>
-{-# OPTIONS_GHC -O2 -fvia-C -optc-O3 -fexcess-precision -fglasgow-exts #-}
+{-# OPTIONS_GHC -O2 -fexcess-precision -fglasgow-exts #-}
+
+-- BUG: Can't mix FFI and -fvia-C under GHC 6.10.1
+-- <http://hackage.haskell.org/trac/ghc/ticket/3117>
+-- TODO: see if -fasm gives the same performance boost
+-- TODO: figure out how to get these flags parsed.
+#if defined(__GLASGOW_HASKELL__) && __GLASGOW_HASKELL__ < 610
+{-# OPTIONS_GHC -fvia-C -optc-O3 #-}
+#endif
 
 ----------------------------------------------------------------
 --                                                  ~ 2009.03.10