Makefile: Don't hardcode gcc
Makefile: Don't hardcode gcc

Signed-off-by: Stéphane Graber <089afc6d81f66f1168a9849e15660feae286e024@ubuntu.com>

erikmack/lxd,Skarlso/lxd,erikmack/lxd,hallyn/lxd,stgraber/lxd,jsavikko/lxd,Skarlso/lxd,hallyn/lxd,hallyn/lxd,hallyn/lxd,atxwebs/lxd,hallyn/lxd,stgraber/lxd,erikmack/lxd,lxc/lxd,mjeanson/lxd,stgraber/lxd,mjeanson/lxd,lxc/lxd,Skarlso/lxd,Skarlso/lxd,lxc/lxd,atxwebs/lxd,pcdummy/lxd,jsavikko/lxd,lxc/lxd,stgraber/lxd,stgraber/lxd,lxc/lxd,mjeanson/lxd,pcdummy/lxd,jsavikko/lxd,lxc/lxd,atxwebs/lxd,atxwebs/lxd,stgraber/lxd,stgraber/lxd,pcdummy/lxd,lxc/lxd,hallyn/lxd