don't build the threaded RTS when GhcUnregisterised=YES
don't build the threaded RTS when GhcUnregisterised=YES
spacekitteh/smcghc,lukexi/ghc-7.8-arm64,tjakway/ghcjvm,forked-upstream-packages-for-ghcjs/ghc,holzensp/ghc,sdiehl/ghc,anton-dessiatov/ghc,ml9951/ghc,frantisekfarka/ghc-dsi,mfine/ghc,GaloisInc/halvm-ghc,urbanslug/ghc,oldmanmike/ghc,siddhanathan/ghc,ezyang/ghc,christiaanb/ghc,ghc-android/ghc,ezyang/ghc,nkaretnikov/ghc,ekmett/ghc,gcampax/ghc,siddhanathan/ghc,christiaanb/ghc,hferreiro/replay,urbanslug/ghc,nomeata/ghc,elieux/ghc,ghc-android/ghc,holzensp/ghc,lukexi/ghc-7.8-arm64,ghc-android/ghc,forked-upstream-packages-for-ghcjs/ghc,mettekou/ghc,jstolarek/ghc,AlexanderPankiv/ghc,wxwxwwxxx/ghc,nathyong/microghc-ghc,elieux/ghc,acowley/ghc,snoyberg/ghc,GaloisInc/halvm-ghc,christiaanb/ghc,sdiehl/ghc,christiaanb/ghc,ml9951/ghc,elieux/ghc,nushio3/ghc,bitemyapp/ghc,vikraman/ghc,ghc-android/ghc,mettekou/ghc,ryantm/ghc,nathyong/microghc-ghc,sgillespie/ghc,frantisekfarka/ghc-dsi,urbanslug/ghc,spacekitteh/smcghc,mettekou/ghc,gcampax/ghc,lukexi/ghc,gcampax/ghc,jstolarek/ghc,tjakway/ghcjvm,tibbe/ghc,wxwxwwxxx/ghc,nomeata/ghc,gridaphobe/ghc,gcampax/ghc,olsner/ghc,acowley/ghc,mcmaniac/ghc,anton-dessiatov/ghc,bitemyapp/ghc,ezyang/ghc,olsner/ghc,nathyong/microghc-ghc,vikraman/ghc,nkaretnikov/ghc,urbanslug/ghc,nushio3/ghc,hferreiro/replay,mcschroeder/ghc,fmthoma/ghc,TomMD/ghc,TomMD/ghc,ekmett/ghc,AlexanderPankiv/ghc,forked-upstream-packages-for-ghcjs/ghc,TomMD/ghc,holzensp/ghc,snoyberg/ghc,sgillespie/ghc,green-haskell/ghc,oldmanmike/ghc,ekmett/ghc,oldmanmike/ghc,da-x/ghc,siddhanathan/ghc,lukexi/ghc,nathyong/microghc-ghc,gridaphobe/ghc,mcschroeder/ghc,nathyong/microghc-ghc,oldmanmike/ghc,ryantm/ghc,oldmanmike/ghc,acowley/ghc,hferreiro/replay,ezyang/ghc,ghc-android/ghc,GaloisInc/halvm-ghc,gcampax/ghc,holzensp/ghc,elieux/ghc,hferreiro/replay,ezyang/ghc,jstolarek/ghc,nomeata/ghc,vTurbine/ghc,TomMD/ghc,ryantm/ghc,sgillespie/ghc,fmthoma/ghc,TomMD/ghc,lukexi/ghc,nkaretnikov/ghc,mettekou/ghc,snoyberg/ghc,gcampax/ghc,AlexanderPankiv/ghc,sdiehl/ghc,bitemyapp/ghc,GaloisInc/halvm-ghc,lukexi/ghc-7.8-arm64,AlexanderPankiv/ghc,olsner/ghc,snoyberg/ghc,vTurbine/ghc,hferreiro/replay,nushio3/ghc,urbanslug/ghc,da-x/ghc,acowley/ghc,mfine/ghc,shlevy/ghc,bitemyapp/ghc,spacekitteh/smcghc,anton-dessiatov/ghc,oldmanmike/ghc,christiaanb/ghc,anton-dessiatov/ghc,ilyasergey/GHC-XAppFix,wxwxwwxxx/ghc,green-haskell/ghc,nushio3/ghc,bitemyapp/ghc,anton-dessiatov/ghc,mettekou/ghc,nomeata/ghc,ilyasergey/GHC-XAppFix,forked-upstream-packages-for-ghcjs/ghc,holzensp/ghc,shlevy/ghc,ekmett/ghc,mfine/ghc,urbanslug/ghc,elieux/ghc,sdiehl/ghc,mcschroeder/ghc,ilyasergey/GHC-XAppFix,frantisekfarka/ghc-dsi,nkaretnikov/ghc,vikraman/ghc,olsner/ghc,GaloisInc/halvm-ghc,hferreiro/replay,wxwxwwxxx/ghc,gridaphobe/ghc,nushio3/ghc,mettekou/ghc,christiaanb/ghc,tibbe/ghc,spacekitteh/smcghc,vTurbine/ghc,ml9951/ghc,snoyberg/ghc,da-x/ghc,ghc-android/ghc,nathyong/microghc-ghc,tjakway/ghcjvm,mfine/ghc,ml9951/ghc,olsner/ghc,GaloisInc/halvm-ghc,ekmett/ghc,tjakway/ghcjvm,wxwxwwxxx/ghc,green-haskell/ghc,AlexanderPankiv/ghc,green-haskell/ghc,sgillespie/ghc,acowley/ghc,ryantm/ghc,tjakway/ghcjvm,ml9951/ghc,sdiehl/ghc,wxwxwwxxx/ghc,vikraman/ghc,ezyang/ghc,forked-upstream-packages-for-ghcjs/ghc,nushio3/ghc,mcschroeder/ghc,lukexi/ghc,da-x/ghc,fmthoma/ghc,shlevy/ghc,fmthoma/ghc,mfine/ghc,tibbe/ghc,shlevy/ghc,elieux/ghc,mcmaniac/ghc,da-x/ghc,urbanslug/ghc,da-x/ghc,tibbe/ghc,olsner/ghc,ml9951/ghc,nkaretnikov/ghc,tibbe/ghc,ryantm/ghc,fmthoma/ghc,TomMD/ghc,vTurbine/ghc,ghc-android/ghc,wxwxwwxxx/ghc,jstolarek/ghc,acowley/ghc,TomMD/ghc,forked-upstream-packages-for-ghcjs/ghc,mcschroeder/ghc,gridaphobe/ghc,shlevy/ghc,ml9951/ghc,nomeata/ghc,tjakway/ghcjvm,hferreiro/replay,vikraman/ghc,gcampax/ghc,sgillespie/ghc,christiaanb/ghc,siddhanathan/ghc,mettekou/ghc,vTurbine/ghc,frantisekfarka/ghc-dsi,mfine/ghc,fmthoma/ghc,AlexanderPankiv/ghc,fmthoma/ghc,mcschroeder/ghc,oldmanmike/ghc,ezyang/ghc,vikraman/ghc,shlevy/ghc,sgillespie/ghc,lukexi/ghc,nushio3/ghc,mfine/ghc,mcmaniac/ghc,sgillespie/ghc,vTurbine/ghc,GaloisInc/halvm-ghc,gridaphobe/ghc,sdiehl/ghc,mcmaniac/ghc,mcmaniac/ghc,lukexi/ghc-7.8-arm64,vTurbine/ghc,nathyong/microghc-ghc,da-x/ghc,nkaretnikov/ghc,siddhanathan/ghc,elieux/ghc,jstolarek/ghc,spacekitteh/smcghc,gridaphobe/ghc,siddhanathan/ghc,acowley/ghc,green-haskell/ghc,anton-dessiatov/ghc,tjakway/ghcjvm,sdiehl/ghc,nkaretnikov/ghc,frantisekfarka/ghc-dsi,shlevy/ghc,AlexanderPankiv/ghc,siddhanathan/ghc,mcschroeder/ghc,forked-upstream-packages-for-ghcjs/ghc,ml9951/ghc,snoyberg/ghc,snoyberg/ghc,olsner/ghc,anton-dessiatov/ghc,lukexi/ghc-7.8-arm64,vikraman/ghc,gridaphobe/ghc,ilyasergey/GHC-XAppFix