windows fixes for zlib
windows fixes for zlib

sousoux/luvit,kaustavha/luvit,boundary/luvit,kaustavha/luvit,luvit/luvit,rjeli/luvit,sousoux/luvit,AndrewTsao/luvit,GabrielNicolasAvellaneda/luvit-upstream,sousoux/luvit,sousoux/luvit,DBarney/luvit,bsn069/luvit,boundary/luvit,connectFree/lev,sousoux/luvit,AndrewTsao/luvit,luvit/luvit,AndrewTsao/luvit,rjeli/luvit,connectFree/lev,GabrielNicolasAvellaneda/luvit-upstream,zhaozg/luvit,kaustavha/luvit,GabrielNicolasAvellaneda/luvit-upstream,boundary/luvit,boundary/luvit,zhaozg/luvit,DBarney/luvit,bsn069/luvit,DBarney/luvit,sousoux/luvit,rjeli/luvit,DBarney/luvit,GabrielNicolasAvellaneda/luvit-upstream,boundary/luvit,bsn069/luvit,boundary/luvit,rjeli/luvit