ENV/super: prioritise Xcode if Xcode is a build req
ENV/super: prioritise Xcode if Xcode is a build req

reitermarkus/brew,EricFromCanada/brew,EricFromCanada/brew,mahori/brew,konqui/brew,konqui/brew,claui/brew,nandub/brew,vitorgalvao/brew,MikeMcQuaid/brew,mahori/brew,vitorgalvao/brew,EricFromCanada/brew,Homebrew/brew,sjackman/homebrew,reitermarkus/brew,konqui/brew,MikeMcQuaid/brew,sjackman/homebrew,konqui/brew,Homebrew/brew,nandub/brew,nandub/brew,vitorgalvao/brew,JCount/brew,reitermarkus/brew,Homebrew/brew,JCount/brew,mahori/brew,sjackman/homebrew,JCount/brew,MikeMcQuaid/brew,Homebrew/brew,claui/brew,mahori/brew,reitermarkus/brew,EricFromCanada/brew,sjackman/homebrew,vitorgalvao/brew,MikeMcQuaid/brew,JCount/brew,claui/brew,nandub/brew,claui/brew