Revert "fix configure script to check pthread_atfork(3) in the correct way"
Revert "fix configure script to check pthread_atfork(3) in the correct way"

This reverts commit 462e13b135cfa772403fddc16105bf23ea78105a.

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