BUG: fix build in c99 mode
BUG: fix build in c99 mode

The definition of off_t is located in sys/types.h and is not pulled
by other files when compiling in c99 mode instead of the default gnu89.
Closes gh-5231

jakirkham/numpy,endolith/numpy,MaPePeR/numpy,rgommers/numpy,mwiebe/numpy,CMartelLML/numpy,ssanderson/numpy,skwbc/numpy,ESSS/numpy,githubmlai/numpy,has2k1/numpy,ddasilva/numpy,simongibbons/numpy,dimasad/numpy,ajdawson/numpy,solarjoe/numpy,mindw/numpy,endolith/numpy,GaZ3ll3/numpy,larsmans/numpy,sonnyhu/numpy,rherault-insa/numpy,drasmuss/numpy,rmcgibbo/numpy,b-carter/numpy,dimasad/numpy,MSeifert04/numpy,ekalosak/numpy,drasmuss/numpy,sinhrks/numpy,mhvk/numpy,mortada/numpy,sigma-random/numpy,maniteja123/numpy,Eric89GXL/numpy,rhythmsosad/numpy,ajdawson/numpy,KaelChen/numpy,bmorris3/numpy,skwbc/numpy,trankmichael/numpy,empeeu/numpy,ContinuumIO/numpy,kirillzhuravlev/numpy,bringingheavendown/numpy,nguyentu1602/numpy,charris/numpy,jankoslavic/numpy,AustereCuriosity/numpy,Srisai85/numpy,joferkington/numpy,rgommers/numpy,trankmichael/numpy,behzadnouri/numpy,numpy/numpy,rherault-insa/numpy,pdebuyl/numpy,ChanderG/numpy,SunghanKim/numpy,SunghanKim/numpy,mwiebe/numpy,mingwpy/numpy,WillieMaddox/numpy,shoyer/numpy,Anwesh43/numpy,Srisai85/numpy,tynn/numpy,KaelChen/numpy,musically-ut/numpy,jschueller/numpy,grlee77/numpy,ViralLeadership/numpy,WarrenWeckesser/numpy,rajathkumarmp/numpy,stuarteberg/numpy,dch312/numpy,mathdd/numpy,tacaswell/numpy,nbeaver/numpy,brandon-rhodes/numpy,KaelChen/numpy,Yusa95/numpy,argriffing/numpy,seberg/numpy,cjermain/numpy,dch312/numpy,ekalosak/numpy,mortada/numpy,felipebetancur/numpy,Eric89GXL/numpy,simongibbons/numpy,Anwesh43/numpy,has2k1/numpy,ahaldane/numpy,mathdd/numpy,abalkin/numpy,empeeu/numpy,hainm/numpy,MSeifert04/numpy,brandon-rhodes/numpy,ddasilva/numpy,dwillmer/numpy,CMartelLML/numpy,pbrod/numpy,shoyer/numpy,grlee77/numpy,GrimDerp/numpy,GaZ3ll3/numpy,njase/numpy,rudimeier/numpy,mathdd/numpy,mindw/numpy,SiccarPoint/numpy,shoyer/numpy,GrimDerp/numpy,solarjoe/numpy,pizzathief/numpy,CMartelLML/numpy,dato-code/numpy,rhythmsosad/numpy,mathdd/numpy,pbrod/numpy,SunghanKim/numpy,WarrenWeckesser/numpy,mindw/numpy,numpy/numpy,sigma-random/numpy,GrimDerp/numpy,ekalosak/numpy,endolith/numpy,ChristopherHogan/numpy,rhythmsosad/numpy,grlee77/numpy,cowlicks/numpy,seberg/numpy,MichaelAquilina/numpy,rmcgibbo/numpy,stuarteberg/numpy,WillieMaddox/numpy,solarjoe/numpy,nbeaver/numpy,nbeaver/numpy,rmcgibbo/numpy,pizzathief/numpy,anntzer/numpy,pyparallel/numpy,stuarteberg/numpy,pizzathief/numpy,SiccarPoint/numpy,ViralLeadership/numpy,abalkin/numpy,ChanderG/numpy,rajathkumarmp/numpy,grlee77/numpy,nguyentu1602/numpy,githubmlai/numpy,naritta/numpy,musically-ut/numpy,dato-code/numpy,ChristopherHogan/numpy,mattip/numpy,andsor/numpy,gmcastil/numpy,jorisvandenbossche/numpy,GaZ3ll3/numpy,SiccarPoint/numpy,njase/numpy,larsmans/numpy,tdsmith/numpy,bringingheavendown/numpy,b-carter/numpy,sigma-random/numpy,ekalosak/numpy,jorisvandenbossche/numpy,yiakwy/numpy,jankoslavic/numpy,Linkid/numpy,kiwifb/numpy,mhvk/numpy,BMJHayward/numpy,bertrand-l/numpy,yiakwy/numpy,shoyer/numpy,hainm/numpy,tynn/numpy,ahaldane/numpy,cowlicks/numpy,argriffing/numpy,chatcannon/numpy,leifdenby/numpy,jonathanunderwood/numpy,Dapid/numpy,kiwifb/numpy,kiwifb/numpy,Yusa95/numpy,jonathanunderwood/numpy,dwillmer/numpy,rhythmsosad/numpy,Linkid/numpy,njase/numpy,naritta/numpy,cjermain/numpy,AustereCuriosity/numpy,stuarteberg/numpy,maniteja123/numpy,rajathkumarmp/numpy,joferkington/numpy,MaPePeR/numpy,pyparallel/numpy,jschueller/numpy,groutr/numpy,MSeifert04/numpy,BMJHayward/numpy,rgommers/numpy,BabeNovelty/numpy,simongibbons/numpy,mattip/numpy,brandon-rhodes/numpy,skymanaditya1/numpy,groutr/numpy,madphysicist/numpy,dimasad/numpy,andsor/numpy,pdebuyl/numpy,larsmans/numpy,anntzer/numpy,pbrod/numpy,pbrod/numpy,mhvk/numpy,ESSS/numpy,Anwesh43/numpy,gmcastil/numpy,rudimeier/numpy,mingwpy/numpy,ViralLeadership/numpy,pdebuyl/numpy,githubmlai/numpy,anntzer/numpy,tacaswell/numpy,jakirkham/numpy,kirillzhuravlev/numpy,numpy/numpy,seberg/numpy,jorisvandenbossche/numpy,ChristopherHogan/numpy,ahaldane/numpy,mortada/numpy,MichaelAquilina/numpy,sigma-random/numpy,dch312/numpy,chiffa/numpy,tynn/numpy,ssanderson/numpy,andsor/numpy,sinhrks/numpy,simongibbons/numpy,dwillmer/numpy,andsor/numpy,ESSS/numpy,MaPePeR/numpy,Anwesh43/numpy,MSeifert04/numpy,tacaswell/numpy,anntzer/numpy,musically-ut/numpy,AustereCuriosity/numpy,Dapid/numpy,ddasilva/numpy,ajdawson/numpy,pdebuyl/numpy,grlee77/numpy,bmorris3/numpy,ChristopherHogan/numpy,ajdawson/numpy,ssanderson/numpy,MSeifert04/numpy,rudimeier/numpy,BMJHayward/numpy,jakirkham/numpy,pyparallel/numpy,BMJHayward/numpy,joferkington/numpy,pizzathief/numpy,Linkid/numpy,sonnyhu/numpy,tdsmith/numpy,Srisai85/numpy,rmcgibbo/numpy,jakirkham/numpy,empeeu/numpy,WarrenWeckesser/numpy,gfyoung/numpy,madphysicist/numpy,dato-code/numpy,tdsmith/numpy,drasmuss/numpy,mhvk/numpy,mattip/numpy,SunghanKim/numpy,moreati/numpy,Linkid/numpy,b-carter/numpy,cowlicks/numpy,moreati/numpy,sonnyhu/numpy,ContinuumIO/numpy,nguyentu1602/numpy,naritta/numpy,githubmlai/numpy,charris/numpy,Srisai85/numpy,leifdenby/numpy,mingwpy/numpy,endolith/numpy,musically-ut/numpy,empeeu/numpy,gfyoung/numpy,bringingheavendown/numpy,hainm/numpy,Eric89GXL/numpy,kirillzhuravlev/numpy,maniteja123/numpy,jankoslavic/numpy,CMartelLML/numpy,madphysicist/numpy,yiakwy/numpy,madphysicist/numpy,mortada/numpy,MichaelAquilina/numpy,pizzathief/numpy,jorisvandenbossche/numpy,mingwpy/numpy,WillieMaddox/numpy,WarrenWeckesser/numpy,BabeNovelty/numpy,moreati/numpy,mwiebe/numpy,sonnyhu/numpy,rajathkumarmp/numpy,rherault-insa/numpy,Dapid/numpy,dato-code/numpy,gmcastil/numpy,jorisvandenbossche/numpy,abalkin/numpy,tdsmith/numpy,yiakwy/numpy,ahaldane/numpy,MichaelAquilina/numpy,SiccarPoint/numpy,skwbc/numpy,larsmans/numpy,nguyentu1602/numpy,rudimeier/numpy,chiffa/numpy,trankmichael/numpy,sinhrks/numpy,rgommers/numpy,MaPePeR/numpy,dimasad/numpy,shoyer/numpy,ContinuumIO/numpy,jschueller/numpy,ChanderG/numpy,gfyoung/numpy,jankoslavic/numpy,mhvk/numpy,bertrand-l/numpy,kirillzhuravlev/numpy,brandon-rhodes/numpy,felipebetancur/numpy,groutr/numpy,dwillmer/numpy,simongibbons/numpy,chatcannon/numpy,behzadnouri/numpy,ChanderG/numpy,hainm/numpy,cjermain/numpy,joferkington/numpy,skymanaditya1/numpy,GaZ3ll3/numpy,sinhrks/numpy,behzadnouri/numpy,bertrand-l/numpy,BabeNovelty/numpy,chatcannon/numpy,cowlicks/numpy,felipebetancur/numpy,jschueller/numpy,ahaldane/numpy,charris/numpy,has2k1/numpy,naritta/numpy,cjermain/numpy,BabeNovelty/numpy,utke1/numpy,dch312/numpy,bmorris3/numpy,utke1/numpy,Yusa95/numpy,mindw/numpy,bmorris3/numpy,argriffing/numpy,has2k1/numpy,GrimDerp/numpy,pbrod/numpy,madphysicist/numpy,jakirkham/numpy,chiffa/numpy,trankmichael/numpy,charris/numpy,skymanaditya1/numpy,skymanaditya1/numpy,Yusa95/numpy,numpy/numpy,mattip/numpy,seberg/numpy,jonathanunderwood/numpy,KaelChen/numpy,WarrenWeckesser/numpy,leifdenby/numpy,utke1/numpy,felipebetancur/numpy,Eric89GXL/numpy