Fix build on OS X
Fix build on OS X

anton-dessiatov/ghc,forked-upstream-packages-for-ghcjs/ghc,ml9951/ghc,ghc-android/ghc,mcschroeder/ghc,urbanslug/ghc,vikraman/ghc,urbanslug/ghc,christiaanb/ghc,shlevy/ghc,holzensp/ghc,nkaretnikov/ghc,snoyberg/ghc,ghc-android/ghc,ekmett/ghc,jstolarek/ghc,mettekou/ghc,fmthoma/ghc,mcschroeder/ghc,anton-dessiatov/ghc,ghc-android/ghc,gcampax/ghc,ezyang/ghc,ghc-android/ghc,gridaphobe/ghc,TomMD/ghc,hferreiro/replay,snoyberg/ghc,olsner/ghc,fmthoma/ghc,mfine/ghc,AlexanderPankiv/ghc,nushio3/ghc,tjakway/ghcjvm,sgillespie/ghc,frantisekfarka/ghc-dsi,oldmanmike/ghc,tjakway/ghcjvm,tjakway/ghcjvm,ekmett/ghc,mfine/ghc,green-haskell/ghc,ml9951/ghc,wxwxwwxxx/ghc,lukexi/ghc-7.8-arm64,wxwxwwxxx/ghc,nkaretnikov/ghc,siddhanathan/ghc,GaloisInc/halvm-ghc,forked-upstream-packages-for-ghcjs/ghc,sdiehl/ghc,mcschroeder/ghc,vTurbine/ghc,lukexi/ghc-7.8-arm64,nushio3/ghc,shlevy/ghc,nathyong/microghc-ghc,anton-dessiatov/ghc,bitemyapp/ghc,mettekou/ghc,hferreiro/replay,lukexi/ghc-7.8-arm64,elieux/ghc,tjakway/ghcjvm,holzensp/ghc,ekmett/ghc,ezyang/ghc,ghc-android/ghc,forked-upstream-packages-for-ghcjs/ghc,bitemyapp/ghc,sgillespie/ghc,forked-upstream-packages-for-ghcjs/ghc,sdiehl/ghc,sgillespie/ghc,da-x/ghc,tibbe/ghc,nkaretnikov/ghc,sdiehl/ghc,vikraman/ghc,christiaanb/ghc,fmthoma/ghc,ghc-android/ghc,lukexi/ghc,bitemyapp/ghc,AlexanderPankiv/ghc,snoyberg/ghc,mfine/ghc,da-x/ghc,elieux/ghc,hferreiro/replay,acowley/ghc,nushio3/ghc,vikraman/ghc,GaloisInc/halvm-ghc,AlexanderPankiv/ghc,ekmett/ghc,mettekou/ghc,siddhanathan/ghc,spacekitteh/smcghc,urbanslug/ghc,christiaanb/ghc,gcampax/ghc,anton-dessiatov/ghc,oldmanmike/ghc,spacekitteh/smcghc,nushio3/ghc,acowley/ghc,TomMD/ghc,olsner/ghc,wxwxwwxxx/ghc,mfine/ghc,gridaphobe/ghc,nushio3/ghc,ryantm/ghc,nushio3/ghc,tjakway/ghcjvm,ml9951/ghc,acowley/ghc,da-x/ghc,gcampax/ghc,oldmanmike/ghc,hferreiro/replay,urbanslug/ghc,green-haskell/ghc,shlevy/ghc,ml9951/ghc,TomMD/ghc,oldmanmike/ghc,nkaretnikov/ghc,oldmanmike/ghc,nkaretnikov/ghc,holzensp/ghc,hferreiro/replay,ml9951/ghc,fmthoma/ghc,gridaphobe/ghc,GaloisInc/halvm-ghc,sdiehl/ghc,forked-upstream-packages-for-ghcjs/ghc,GaloisInc/halvm-ghc,sgillespie/ghc,tibbe/ghc,da-x/ghc,spacekitteh/smcghc,oldmanmike/ghc,gridaphobe/ghc,urbanslug/ghc,AlexanderPankiv/ghc,snoyberg/ghc,wxwxwwxxx/ghc,elieux/ghc,olsner/ghc,anton-dessiatov/ghc,nathyong/microghc-ghc,nkaretnikov/ghc,anton-dessiatov/ghc,da-x/ghc,lukexi/ghc-7.8-arm64,vikraman/ghc,shlevy/ghc,fmthoma/ghc,green-haskell/ghc,jstolarek/ghc,gcampax/ghc,ezyang/ghc,tibbe/ghc,nushio3/ghc,ezyang/ghc,ml9951/ghc,olsner/ghc,forked-upstream-packages-for-ghcjs/ghc,gridaphobe/ghc,bitemyapp/ghc,nkaretnikov/ghc,siddhanathan/ghc,holzensp/ghc,olsner/ghc,siddhanathan/ghc,urbanslug/ghc,mfine/ghc,snoyberg/ghc,vTurbine/ghc,holzensp/ghc,tibbe/ghc,mfine/ghc,ezyang/ghc,wxwxwwxxx/ghc,ezyang/ghc,TomMD/ghc,gcampax/ghc,ml9951/ghc,mettekou/ghc,sdiehl/ghc,ryantm/ghc,siddhanathan/ghc,mfine/ghc,elieux/ghc,olsner/ghc,da-x/ghc,gridaphobe/ghc,shlevy/ghc,vikraman/ghc,spacekitteh/smcghc,TomMD/ghc,TomMD/ghc,christiaanb/ghc,oldmanmike/ghc,snoyberg/ghc,green-haskell/ghc,nathyong/microghc-ghc,wxwxwwxxx/ghc,olsner/ghc,GaloisInc/halvm-ghc,ml9951/ghc,siddhanathan/ghc,GaloisInc/halvm-ghc,elieux/ghc,gcampax/ghc,christiaanb/ghc,mcschroeder/ghc,sgillespie/ghc,acowley/ghc,christiaanb/ghc,mcschroeder/ghc,GaloisInc/halvm-ghc,ghc-android/ghc,gridaphobe/ghc,jstolarek/ghc,ryantm/ghc,mettekou/ghc,shlevy/ghc,hferreiro/replay,AlexanderPankiv/ghc,jstolarek/ghc,lukexi/ghc,frantisekfarka/ghc-dsi,vTurbine/ghc,acowley/ghc,lukexi/ghc,mettekou/ghc,forked-upstream-packages-for-ghcjs/ghc,tibbe/ghc,ezyang/ghc,tjakway/ghcjvm,vTurbine/ghc,elieux/ghc,mcschroeder/ghc,vTurbine/ghc,nathyong/microghc-ghc,ryantm/ghc,frantisekfarka/ghc-dsi,fmthoma/ghc,lukexi/ghc,frantisekfarka/ghc-dsi,gcampax/ghc,frantisekfarka/ghc-dsi,fmthoma/ghc,green-haskell/ghc,snoyberg/ghc,siddhanathan/ghc,ekmett/ghc,sgillespie/ghc,tjakway/ghcjvm,vikraman/ghc,ryantm/ghc,nathyong/microghc-ghc,lukexi/ghc,vikraman/ghc,spacekitteh/smcghc,acowley/ghc,hferreiro/replay,vTurbine/ghc,vTurbine/ghc,acowley/ghc,jstolarek/ghc,christiaanb/ghc,elieux/ghc,bitemyapp/ghc,da-x/ghc,lukexi/ghc-7.8-arm64,wxwxwwxxx/ghc,AlexanderPankiv/ghc,sgillespie/ghc,nathyong/microghc-ghc,urbanslug/ghc,shlevy/ghc,nathyong/microghc-ghc,sdiehl/ghc,sdiehl/ghc,mettekou/ghc,AlexanderPankiv/ghc,anton-dessiatov/ghc,mcschroeder/ghc,TomMD/ghc