Fix building against Bison 3.0.2
Fix building against Bison 3.0.2

NixOS/nix,dtzWill/nix,dezgeg/nix,jcumming/nix,aucampia/nix,joelmo/nix,dezgeg/nix,wmertens/nix,gebner/nix,shlevy/nix,ehmry/nix,tchajed/nix,dezgeg/nix,vizanto/nix,aucampia/nix,rowhit/nix,ttuegel/nix,ehmry/nix,dezgeg/nix,NixOS/nix,layus/nix,dezgeg/nix,offlinehacker/nix,peti/nix,offlinehacker/nix,rowhit/nix,ehmry/nix,bennofs/nix,zimbatm/nix,puffnfresh/nix,peti/nix,jcumming/nix,rycee/nix,bennofs/nix,dtzWill/nix,gridaphobe/nix,rowhit/nix,wmertens/nix,puffnfresh/nix,wmertens/nix,vcunat/nix,layus/nix,pikajude/nix,vizanto/nix,joelmo/nix,tchajed/nix,joelmo/nix,pikajude/nix,offlinehacker/nix,tchajed/nix,bjornfor/nix,rycee/nix,vizanto/nix,dtzWill/nix,ysangkok/nix,ysangkok/nix,bennofs/nix,garbas/nix,puffnfresh/nix,shlevy/nix,gebner/nix,NixOS/nix,aucampia/nix,ehmry/nix,acowley/nix,shlevy/nix,dtzWill/nix,joelmo/nix,ttuegel/nix,vcunat/nix,garbas/nix,ysangkok/nix,gridaphobe/nix,acowley/nix,ttuegel/nix,shlevy/nix,zimbatm/nix,rycee/nix,ehmry/nix,jcumming/nix,rycee/nix,nbp/nix,layus/nix,peti/nix,dtzWill/nix,nbp/nix,vizanto/nix,gridaphobe/nix,wmertens/nix,vcunat/nix,bjornfor/nix,nbp/nix,rycee/nix,acowley/nix,gebner/nix,garbas/nix,NixOS/nix,ehmry/nix,tchajed/nix,puffnfresh/nix,layus/nix,pikajude/nix,garbas/nix,vcunat/nix,bjornfor/nix,gebner/nix,shlevy/nix,garbas/nix,NixOS/nix,peti/nix,peti/nix,gridaphobe/nix,ttuegel/nix,zimbatm/nix,bennofs/nix,jcumming/nix,layus/nix,nbp/nix,acowley/nix,aucampia/nix,rowhit/nix,zimbatm/nix,offlinehacker/nix,bjornfor/nix