Fix open source build
Fix open source build

Test Plan: build it

Reviewed By: pavlo@fb.com

Subscribers: folly@lists

FB internal diff: D1383722

brunomorishita/folly,charsyam/folly,stonegithubs/folly,SammyK/folly,SeanRBurton/folly,yangjin-unique/folly,cppfool/folly,theiver9827/folly,nickhen/folly,xzmagic/folly,doctaweeks/folly,rklabs/folly,arg0/folly,lifei/folly,zhiweicai/folly,clearlinux/folly,charsyam/folly,project-zerus/folly,constantine001/folly,upsoft/folly,cppfool/folly,ykarlsbrun/folly,arg0/folly,ykarlsbrun/folly,clearlylin/folly,colemancda/folly,tomhughes/folly,raphaelamorim/folly,guker/folly,Orvid/folly,bobegir/folly,constantine001/folly,facebook/folly,sakishum/folly,hongliangzhao/folly,PoisonBOx/folly,constantine001/folly,bsampath/folly,loversInJapan/folly,constantine001/folly,mqeizi/folly,clearlinux/folly,leolujuyi/folly,bikong2/folly,PoisonBOx/folly,nickhen/folly,wildinto/folly,SeanRBurton/folly,renyinew/folly,PPC64/folly,bobegir/folly,project-zerus/folly,gaoyingie/folly,guker/folly,mqeizi/folly,cole14/folly,mqeizi/folly,doctaweeks/folly,clearlinux/folly,fw1121/folly,brunomorishita/folly,zhiweicai/folly,zhiweicai/folly,kernelim/folly,Eagle-X/folly,romange/folly,raphaelamorim/folly,floxard/folly,guker/folly,reddit/folly,tomhughes/folly,brunomorishita/folly,doctaweeks/folly,raphaelamorim/folly,Eagle-X/folly,charsyam/folly,bsampath/folly,Hincoin/folly,nickhen/folly,facebook/folly,alexst07/folly,colemancda/folly,stonegithubs/folly,leolujuyi/folly,Orvid/folly,alexst07/folly,cole14/folly,SammyK/folly,Hincoin/folly,sonnyhu/folly,wildinto/folly,zhiweicai/folly,lifei/folly,SammyK/folly,CJstar/folly,Hincoin/folly,clearlylin/folly,chjp2046/folly,colemancda/folly,CJstar/folly,loverszhaokai/folly,rklabs/folly,hongliangzhao/folly,cppfool/folly,romange/folly,theiver9827/folly,Orvid/folly,project-zerus/folly,stonegithubs/folly,upsoft/folly,juniway/folly,upsoft/folly,bikong2/folly,tempbottle/folly,reddit/folly,tomhughes/folly,fw1121/folly,cole14/folly,hongliangzhao/folly,tempbottle/folly,bsampath/folly,clearlylin/folly,PoisonBOx/folly,gaoyingie/folly,leolujuyi/folly,rklabs/folly,romange/folly,shaobz/folly,rklabs/folly,renyinew/folly,clearlylin/folly,loversInJapan/folly,KSreeHarsha/folly,SeanRBurton/folly,fw1121/folly,sonnyhu/folly,bobegir/folly,chjp2046/folly,reddit/folly,raphaelamorim/folly,bowlofstew/folly,shaobz/folly,bowlofstew/folly,kernelim/folly,wildinto/folly,renyinew/folly,stonegithubs/folly,KSreeHarsha/folly,project-zerus/folly,alexst07/folly,brunomorishita/folly,theiver9827/folly,sonnyhu/folly,hongliangzhao/folly,SammyK/folly,Hincoin/folly,bowlofstew/folly,KSreeHarsha/folly,gaoyingie/folly,kernelim/folly,sonnyhu/folly,doctaweeks/folly,xzmagic/folly,constantine001/folly,SeanRBurton/folly,gavioto/folly,yangjin-unique/folly,bobegir/folly,sakishum/folly,cole14/folly,reddit/folly,xzmagic/folly,Orvid/folly,shaobz/folly,Eagle-X/folly,yangjin-unique/folly,PoisonBOx/folly,bsampath/folly,facebook/folly,shaobz/folly,kernelim/folly,doctaweeks/folly,PPC64/folly,gavioto/folly,bikong2/folly,loverszhaokai/folly,loversInJapan/folly,renyinew/folly,bobegir/folly,chjp2046/folly,SeanRBurton/folly,loverszhaokai/folly,ykarlsbrun/folly,chjp2046/folly,xzmagic/folly,yangjin-unique/folly,PPC64/folly,kernelim/folly,Eagle-X/folly,clearlinux/folly,nickhen/folly,brunomorishita/folly,fw1121/folly,cole14/folly,tempbottle/folly,sakishum/folly,floxard/folly,gaoyingie/folly,Hincoin/folly,zhiweicai/folly,PoisonBOx/folly,gavioto/folly,bowlofstew/folly,CJstar/folly,bowlofstew/folly,juniway/folly,tempbottle/folly,project-zerus/folly,lifei/folly,facebook/folly,romange/folly,loverszhaokai/folly,sonnyhu/folly,xzmagic/folly,leolujuyi/folly,stonegithubs/folly,arg0/folly,KSreeHarsha/folly,alexst07/folly,loverszhaokai/folly,floxard/folly,CJstar/folly,SammyK/folly,bsampath/folly,chjp2046/folly,juniway/folly,raphaelamorim/folly,KSreeHarsha/folly,gaoyingie/folly,cppfool/folly,PPC64/folly,wildinto/folly,loversInJapan/folly,upsoft/folly,colemancda/folly,floxard/folly,clearlinux/folly,juniway/folly,shaobz/folly,Orvid/folly,colemancda/folly,mqeizi/folly,cppfool/folly,leolujuyi/folly,hongliangzhao/folly,guker/folly,upsoft/folly,fw1121/folly,renyinew/folly,reddit/folly,tempbottle/folly,arg0/folly,romange/folly,mqeizi/folly,theiver9827/folly,floxard/folly,clearlylin/folly,rklabs/folly,CJstar/folly,bikong2/folly,nickhen/folly,alexst07/folly,gavioto/folly,wildinto/folly,theiver9827/folly,tomhughes/folly,facebook/folly,lifei/folly,bikong2/folly,ykarlsbrun/folly,yangjin-unique/folly,sakishum/folly,lifei/folly,guker/folly,sakishum/folly,Eagle-X/folly,gavioto/folly,loversInJapan/folly,juniway/folly,arg0/folly,ykarlsbrun/folly,charsyam/folly,PPC64/folly,tomhughes/folly