add check for gcc
add check for gcc

mcandre/factor,bjourne/factor,bpollack/factor,mrjbq7/factor,jwmerrill/factor,tgunr/factor,mrjbq7/factor,mrjbq7/factor,mcandre/factor,bpollack/factor,cataska/factor,kingcons/factor,seckar/factor,bjourne/factor,sarvex/factor-lang,mcandre/factor,seckar/factor,dch/factor,mecon/factor,mecon/factor,ceninan/factor,bpollack/factor,slavapestov/factor,bpollack/factor,sarvex/factor-lang,erg/factor,slavapestov/factor,slavapestov/factor,kingcons/factor,ceninan/factor,dharmatech/factor,seckar/factor,mrjbq7/factor,mcandre/factor,AlexIljin/factor,Keyholder/factor,slavapestov/factor,cataska/factor,bjourne/factor,dch/factor,bjourne/factor,bjourne/factor,tgunr/factor,dch/factor,tgunr/factor,AlexIljin/factor,nicolas-p/factor,Keyholder/factor,AlexIljin/factor,dch/factor,AlexIljin/factor,littledan/Factor,slavapestov/factor,ceninan/factor,erg/factor,ceninan/factor,factor/factor,mcandre/factor,tgunr/factor,cataska/factor,mecon/factor,factor/factor,bpollack/factor,bjourne/factor,sarvex/factor-lang,mecon/factor,bpollack/factor,erg/factor,erg/factor,mrjbq7/factor,nicolas-p/factor,ehird/factor,bjourne/factor,ehird/factor,slavapestov/factor,erg/factor,erg/factor,dch/factor,nicolas-p/factor,kingcons/factor,nicolas-p/factor,sarvex/factor-lang,littledan/Factor,factor/factor,factor/factor,cataska/factor,erg/factor,sarvex/factor-lang,bpollack/factor,mrjbq7/factor,kingcons/factor,sarvex/factor-lang,dch/factor,littledan/Factor,mecon/factor,nicolas-p/factor,mecon/factor,factor/factor,ehird/factor,jwmerrill/factor,tgunr/factor,AlexIljin/factor,nicolas-p/factor,mecon/factor,mcandre/factor,dharmatech/factor,Keyholder/factor,dharmatech/factor,AlexIljin/factor,slavapestov/factor,sarvex/factor-lang,tgunr/factor,AlexIljin/factor,littledan/Factor,factor/factor,jwmerrill/factor,mcandre/factor,nicolas-p/factor