nix-shell: Don't disable Automake dependency tracking
nix-shell: Don't disable Automake dependency tracking

Nixpkgs' stdenv disables dependency tracking by default.  That makes
sense for one-time builds, but in an interactive environment we expect
repeated "make" invocations to do the right thing.

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