X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=System%2FCPUTime.hsc;h=f050a681ae27fef390cdcb43e613ddcd4e68f099;hb=a0f41d471ceda7da65d775cfd9eaca3262ec8291;hp=5a7e6967c8f7cfd81bd6928251f988455f0ecfee;hpb=81b217b104feb963e00537a51e6b3dfee8163b86;p=ghc-base.git

diff --git a/System/CPUTime.hsc b/System/CPUTime.hsc
index 5a7e696..f050a68 100644
--- a/System/CPUTime.hsc
+++ b/System/CPUTime.hsc
@@ -33,7 +33,9 @@ import CPUTime ( getCPUTime, cpuTimePrecision )
 #ifdef __GLASGOW_HASKELL__
 import Foreign hiding (unsafePerformIO)
 import Foreign.C
+#if !defined(CLK_TCK)
 import System.IO.Unsafe (unsafePerformIO)
+#endif
 
 #include "HsBaseConfig.h"