Allow configure to pass when protoc is not yet built
Allow configure to pass when protoc is not yet built

Review 632 by @tryneus

pap/rethinkdb,niieani/rethinkdb,jmptrader/rethinkdb,catroot/rethinkdb,sontek/rethinkdb,sebadiaz/rethinkdb,marshall007/rethinkdb,losywee/rethinkdb,greyhwndz/rethinkdb,RubenKelevra/rethinkdb,sbusso/rethinkdb,lenstr/rethinkdb,captainpete/rethinkdb,bpradipt/rethinkdb,yaolinz/rethinkdb,marshall007/rethinkdb,matthaywardwebdesign/rethinkdb,mcanthony/rethinkdb,KSanthanam/rethinkdb,victorbriz/rethinkdb,captainpete/rethinkdb,gavioto/rethinkdb,jmptrader/rethinkdb,sebadiaz/rethinkdb,mquandalle/rethinkdb,ayumilong/rethinkdb,victorbriz/rethinkdb,captainpete/rethinkdb,gdi2290/rethinkdb,tempbottle/rethinkdb,RubenKelevra/rethinkdb,4talesa/rethinkdb,victorbriz/rethinkdb,wujf/rethinkdb,urandu/rethinkdb,mbroadst/rethinkdb,elkingtonmcb/rethinkdb,Wilbeibi/rethinkdb,4talesa/rethinkdb,urandu/rethinkdb,rrampage/rethinkdb,yakovenkodenis/rethinkdb,sontek/rethinkdb,gavioto/rethinkdb,sontek/rethinkdb,eliangidoni/rethinkdb,losywee/rethinkdb,JackieXie168/rethinkdb,sbusso/rethinkdb,tempbottle/rethinkdb,pap/rethinkdb,robertjpayne/rethinkdb,eliangidoni/rethinkdb,mbroadst/rethinkdb,jmptrader/rethinkdb,4talesa/rethinkdb,bchavez/rethinkdb,elkingtonmcb/rethinkdb,yakovenkodenis/rethinkdb,urandu/rethinkdb,matthaywardwebdesign/rethinkdb,wkennington/rethinkdb,eliangidoni/rethinkdb,mcanthony/rethinkdb,matthaywardwebdesign/rethinkdb,scripni/rethinkdb,wojons/rethinkdb,robertjpayne/rethinkdb,dparnell/rethinkdb,sontek/rethinkdb,bchavez/rethinkdb,AntouanK/rethinkdb,Qinusty/rethinkdb,robertjpayne/rethinkdb,niieani/rethinkdb,yaolinz/rethinkdb,losywee/rethinkdb,lenstr/rethinkdb,bpradipt/rethinkdb,RubenKelevra/rethinkdb,4talesa/rethinkdb,yaolinz/rethinkdb,Wilbeibi/rethinkdb,AntouanK/rethinkdb,gavioto/rethinkdb,bchavez/rethinkdb,wojons/rethinkdb,grandquista/rethinkdb,bchavez/rethinkdb,sbusso/rethinkdb,robertjpayne/rethinkdb,scripni/rethinkdb,lenstr/rethinkdb,elkingtonmcb/rethinkdb,sbusso/rethinkdb,eliangidoni/rethinkdb,yakovenkodenis/rethinkdb,rrampage/rethinkdb,elkingtonmcb/rethinkdb,bpradipt/rethinkdb,mquandalle/rethinkdb,KSanthanam/rethinkdb,sbusso/rethinkdb,AntouanK/rethinkdb,mquandalle/rethinkdb,sebadiaz/rethinkdb,wojons/rethinkdb,bpradipt/rethinkdb,grandquista/rethinkdb,victorbriz/rethinkdb,gavioto/rethinkdb,urandu/rethinkdb,greyhwndz/rethinkdb,matthaywardwebdesign/rethinkdb,Qinusty/rethinkdb,greyhwndz/rethinkdb,gdi2290/rethinkdb,yaolinz/rethinkdb,ayumilong/rethinkdb,captainpete/rethinkdb,mquandalle/rethinkdb,wujf/rethinkdb,grandquista/rethinkdb,RubenKelevra/rethinkdb,marshall007/rethinkdb,yakovenkodenis/rethinkdb,wojons/rethinkdb,eliangidoni/rethinkdb,KSanthanam/rethinkdb,catroot/rethinkdb,sontek/rethinkdb,sebadiaz/rethinkdb,elkingtonmcb/rethinkdb,spblightadv/rethinkdb,mbroadst/rethinkdb,urandu/rethinkdb,wujf/rethinkdb,sontek/rethinkdb,JackieXie168/rethinkdb,wkennington/rethinkdb,catroot/rethinkdb,alash3al/rethinkdb,yaolinz/rethinkdb,pap/rethinkdb,gavioto/rethinkdb,rrampage/rethinkdb,urandu/rethinkdb,jmptrader/rethinkdb,ajose01/rethinkdb,jesseditson/rethinkdb,JackieXie168/rethinkdb,Wilbeibi/rethinkdb,yakovenkodenis/rethinkdb,ajose01/rethinkdb,spblightadv/rethinkdb,gdi2290/rethinkdb,jesseditson/rethinkdb,wujf/rethinkdb,dparnell/rethinkdb,ayumilong/rethinkdb,sbusso/rethinkdb,gavioto/rethinkdb,alash3al/rethinkdb,scripni/rethinkdb,victorbriz/rethinkdb,RubenKelevra/rethinkdb,jesseditson/rethinkdb,captainpete/rethinkdb,rrampage/rethinkdb,grandquista/rethinkdb,JackieXie168/rethinkdb,sebadiaz/rethinkdb,alash3al/rethinkdb,mquandalle/rethinkdb,yaolinz/rethinkdb,4talesa/rethinkdb,bchavez/rethinkdb,matthaywardwebdesign/rethinkdb,robertjpayne/rethinkdb,alash3al/rethinkdb,4talesa/rethinkdb,eliangidoni/rethinkdb,gavioto/rethinkdb,KSanthanam/rethinkdb,JackieXie168/rethinkdb,losywee/rethinkdb,greyhwndz/rethinkdb,lenstr/rethinkdb,bchavez/rethinkdb,Qinusty/rethinkdb,tempbottle/rethinkdb,mcanthony/rethinkdb,Qinusty/rethinkdb,bpradipt/rethinkdb,AntouanK/rethinkdb,catroot/rethinkdb,JackieXie168/rethinkdb,tempbottle/rethinkdb,sebadiaz/rethinkdb,lenstr/rethinkdb,matthaywardwebdesign/rethinkdb,matthaywardwebdesign/rethinkdb,mbroadst/rethinkdb,catroot/rethinkdb,wkennington/rethinkdb,ayumilong/rethinkdb,jmptrader/rethinkdb,mcanthony/rethinkdb,mbroadst/rethinkdb,bpradipt/rethinkdb,tempbottle/rethinkdb,losywee/rethinkdb,sebadiaz/rethinkdb,mbroadst/rethinkdb,wojons/rethinkdb,robertjpayne/rethinkdb,Qinusty/rethinkdb,JackieXie168/rethinkdb,elkingtonmcb/rethinkdb,lenstr/rethinkdb,bpradipt/rethinkdb,urandu/rethinkdb,ayumilong/rethinkdb,jesseditson/rethinkdb,bpradipt/rethinkdb,losywee/rethinkdb,Wilbeibi/rethinkdb,ayumilong/rethinkdb,eliangidoni/rethinkdb,spblightadv/rethinkdb,pap/rethinkdb,urandu/rethinkdb,RubenKelevra/rethinkdb,catroot/rethinkdb,rrampage/rethinkdb,elkingtonmcb/rethinkdb,captainpete/rethinkdb,bchavez/rethinkdb,greyhwndz/rethinkdb,Qinusty/rethinkdb,mbroadst/rethinkdb,rrampage/rethinkdb,jmptrader/rethinkdb,grandquista/rethinkdb,sontek/rethinkdb,alash3al/rethinkdb,jmptrader/rethinkdb,mquandalle/rethinkdb,spblightadv/rethinkdb,marshall007/rethinkdb,AntouanK/rethinkdb,robertjpayne/rethinkdb,niieani/rethinkdb,scripni/rethinkdb,ajose01/rethinkdb,Wilbeibi/rethinkdb,dparnell/rethinkdb,gdi2290/rethinkdb,scripni/rethinkdb,eliangidoni/rethinkdb,jesseditson/rethinkdb,greyhwndz/rethinkdb,wkennington/rethinkdb,KSanthanam/rethinkdb,marshall007/rethinkdb,sontek/rethinkdb,catroot/rethinkdb,grandquista/rethinkdb,rrampage/rethinkdb,niieani/rethinkdb,wojons/rethinkdb,greyhwndz/rethinkdb,grandquista/rethinkdb,grandquista/rethinkdb,spblightadv/rethinkdb,yakovenkodenis/rethinkdb,mquandalle/rethinkdb,JackieXie168/rethinkdb,4talesa/rethinkdb,mbroadst/rethinkdb,wujf/rethinkdb,marshall007/rethinkdb,KSanthanam/rethinkdb,AntouanK/rethinkdb,ayumilong/rethinkdb,AntouanK/rethinkdb,ajose01/rethinkdb,wujf/rethinkdb,ajose01/rethinkdb,4talesa/rethinkdb,tempbottle/rethinkdb,niieani/rethinkdb,jesseditson/rethinkdb,mcanthony/rethinkdb,alash3al/rethinkdb,pap/rethinkdb,wkennington/rethinkdb,marshall007/rethinkdb,ayumilong/rethinkdb,ajose01/rethinkdb,gdi2290/rethinkdb,eliangidoni/rethinkdb,lenstr/rethinkdb,wkennington/rethinkdb,wojons/rethinkdb,sebadiaz/rethinkdb,jesseditson/rethinkdb,Qinusty/rethinkdb,wujf/rethinkdb,elkingtonmcb/rethinkdb,spblightadv/rethinkdb,victorbriz/rethinkdb,spblightadv/rethinkdb,robertjpayne/rethinkdb,yakovenkodenis/rethinkdb,tempbottle/rethinkdb,losywee/rethinkdb,dparnell/rethinkdb,Qinusty/rethinkdb,yaolinz/rethinkdb,spblightadv/rethinkdb,victorbriz/rethinkdb,Qinusty/rethinkdb,captainpete/rethinkdb,KSanthanam/rethinkdb,wkennington/rethinkdb,JackieXie168/rethinkdb,gdi2290/rethinkdb,rrampage/rethinkdb,sbusso/rethinkdb,mquandalle/rethinkdb,yaolinz/rethinkdb,sbusso/rethinkdb,alash3al/rethinkdb,mbroadst/rethinkdb,robertjpayne/rethinkdb,matthaywardwebdesign/rethinkdb,KSanthanam/rethinkdb,lenstr/rethinkdb,jmptrader/rethinkdb,mcanthony/rethinkdb,bpradipt/rethinkdb,niieani/rethinkdb,scripni/rethinkdb,dparnell/rethinkdb,alash3al/rethinkdb,niieani/rethinkdb,wojons/rethinkdb,dparnell/rethinkdb,dparnell/rethinkdb,Wilbeibi/rethinkdb,ajose01/rethinkdb,dparnell/rethinkdb,grandquista/rethinkdb,mcanthony/rethinkdb,tempbottle/rethinkdb,losywee/rethinkdb,greyhwndz/rethinkdb,pap/rethinkdb,mcanthony/rethinkdb,wkennington/rethinkdb,bchavez/rethinkdb,pap/rethinkdb,victorbriz/rethinkdb,scripni/rethinkdb,jesseditson/rethinkdb,Wilbeibi/rethinkdb,ajose01/rethinkdb,bchavez/rethinkdb,gdi2290/rethinkdb,yakovenkodenis/rethinkdb,dparnell/rethinkdb,RubenKelevra/rethinkdb,catroot/rethinkdb,pap/rethinkdb,marshall007/rethinkdb,gavioto/rethinkdb,captainpete/rethinkdb,RubenKelevra/rethinkdb,niieani/rethinkdb,scripni/rethinkdb,Wilbeibi/rethinkdb,AntouanK/rethinkdb