fix build on windows
fix build on windows

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