Don't expose the cas definition to .hc files

This is more pleasant than having the C generator check whether the
function it's calling is cas, and not generate a prototype if so.

1 files changed, 1 insertions, 9 deletions

diff --git a/compiler/cmm/CLabel.hs b/compiler/cmm/CLabel.hs
index 901b13b342..c62f0eaff5 100644
--- a/compiler/cmm/CLabel.hs
+++ b/compiler/cmm/CLabel.hs
@@ -101,7 +101,7 @@ module CLabel (
         hasCAF,
 	infoLblToEntryLbl, entryLblToInfoLbl, cvtToClosureLbl, cvtToSRTLbl,
 	needsCDecl, isAsmTemp, maybeAsmTemp, externallyVisibleCLabel,
-        isMathFun, isCas,
+        isMathFun,
  	isCFunctionLabel, isGcPtrLabel, labelDynamic,
 
 	pprCLabel
@@ -590,14 +590,6 @@ maybeAsmTemp (AsmTempLabel uq) 		= Just uq
 maybeAsmTemp _ 	    	       		= Nothing
 
 
--- | Check whether a label corresponds to our cas function.
---      We #include the prototype for this, so we need to avoid
---      generating out own C prototypes.
-isCas :: CLabel -> Bool
-isCas (CmmLabel pkgId fn _) = pkgId == rtsPackageId && fn == fsLit "cas"
-isCas _                     = False
-
-
 -- | Check whether a label corresponds to a C function that has 
 --      a prototype in a system header somehere, or is built-in
 --      to the C compiler. For these labels we avoid generating our