, ▁this ▁plan ▁was ▁rejected ▁after ▁St all man ▁consult ed ▁with ▁GNU ' s ▁law y ers ▁and ▁Ne XT ▁agreed ▁to ▁make ▁Object ive - C ▁part ▁of ▁G CC . ▁ ▁The ▁work ▁to ▁extend ▁G CC ▁was ▁led ▁by ▁Steve ▁Nar off , ▁who ▁joined ▁Ne XT ▁from ▁Step St one . ▁The ▁compiler ▁changes ▁were ▁made ▁available ▁as ▁per ▁G PL ▁license ▁terms , ▁but ▁the ▁runtime ▁libraries ▁were ▁not , ▁rendering ▁the ▁open ▁source ▁contribution ▁unus able ▁to ▁the ▁general ▁public . ▁ ▁This ▁led ▁to ▁other ▁parties ▁developing ▁such ▁runtime ▁libraries ▁under ▁open ▁source ▁license . ▁ ▁Later , ▁Steve ▁Nar off ▁was ▁also ▁principal ▁contrib utor ▁to ▁work ▁at ▁Apple ▁to ▁build ▁the ▁Object ive - C ▁front end ▁to ▁Cl ang . ▁ ▁The ▁GNU ▁project ▁started ▁work ▁on ▁its ▁free ▁software ▁implementation ▁of ▁C ocoa , ▁named ▁GNU step , ▁based ▁on ▁the ▁Open Step ▁standard . ▁Dennis ▁Gl atting ▁wrote ▁the ▁first ▁GNU ▁Object ive - C ▁runtime ▁in ▁ 1 9 9 2 . ▁The ▁GNU ▁Object ive - C ▁runtime , ▁which ▁has ▁been ▁in ▁use ▁since ▁ 1 9 9 3 , ▁is ▁the ▁one ▁developed ▁by ▁K rest en ▁K rab ▁Thor up ▁when ▁he ▁was ▁a ▁university ▁student ▁in ▁Den mark . ▁Thor up ▁also ▁worked ▁at ▁Ne XT ▁from ▁ 1 9 9 3 ▁to ▁ 1 9 9 6 . ▁ ▁Apple ▁development ▁and ▁Swift ▁After ▁acqu iring ▁Ne XT ▁in ▁ 1 9 9