x86-64: Define make variable TARGET so that test2 and test3 use correct flag.
x86-64: Define make variable TARGET so that test2 and test3 use correct flag.

leeduhem/tinycc,xcm/tcc,soywiz/tinycc,mirror/tinycc,FriedBreakfast/tcc,code4game/tinycc,mirror/tinycc,Saectar/inherpreter,shinh/nacltcc,yousong/tinycc,gfwilliams/tinycc,soywiz/tinycc,melkior/tinycc,Archs/TinyCC,leeduhem/tinycc,avih/tinycc,metaeducation/tcc,shinh/nacltcc,mitake/tinycc,Saectar/inherpreter,seyko2/tinycc,run4flat/tinycc,rchandramouli/tinycc,Archs/TinyCC,yousong/tinycc,mirror/tinycc,Saectar/inherpreter,Archs/TinyCC,run4flat/tinycc,gfwilliams/tinycc,FriedBreakfast/tcc,rchandramouli/tinycc,fstudio/tinycc,gfwilliams/tinycc,metaeducation/tcc,FriedBreakfast/tcc,andreiw/tinycc,melkior/tinycc,mingodad/tinycc,soywiz/tinycc,melkior/tinycc,alfonsokim/tinycc,run4flat/tinycc,shinh/nacltcc,seyko2/tinycc,leeduhem/tinycc,mitake/tinycc,FriedBreakfast/tcc,fstudio/tinycc,gfwilliams/tinycc,Archs/TinyCC,seyko2/tinycc,xcm/tcc,rchandramouli/tinycc,avih/tinycc,fstudio/tinycc,alfonsokim/tinycc,rchandramouli/tinycc,acook/tinycc,Wallbraker/DCPU-TCC,gfwilliams/tinycc,FriedBreakfast/tcc,andrewchambers/tccmirror,mobiphil/tinnycc,mingodad/tinycc,metaeducation/tcc,ftdi-paul-jiao/tinyCC,avih/tinycc,melkior/tinycc,soywiz/tinycc,shinh/nacltcc,mingodad/tinycc,metaeducation/tcc,fstudio/tinycc,andreiw/tinycc,yousong/tinycc,andrewchambers/tccmirror,mitake/tinycc,run4flat/tinycc,leeduhem/tinycc,andrewchambers/tccmirror,melkior/tinycc,alfonsokim/tinycc,xcm/tcc,ftdi-paul-jiao/tinyCC,andreiw/tinycc,shinh/nacltcc,run4flat/tinycc,yousong/tinycc,mitake/tinycc,avih/tinycc,leeduhem/tinycc,ftdi-paul-jiao/tinyCC,alfonsokim/tinycc,alfonsokim/tinycc,Wallbraker/DCPU-TCC,fstudio/tinycc,acook/tinycc,mirror/tinycc,Wallbraker/DCPU-TCC,code4game/tinycc,Saectar/inherpreter,mobiphil/tinnycc,mingodad/tinycc,mobiphil/tinnycc,acook/tinycc,mobiphil/tinnycc,rchandramouli/tinycc,Archs/TinyCC,andrewchambers/tccmirror,metaeducation/tcc,code4game/tinycc,ftdi-paul-jiao/tinyCC,seyko2/tinycc,andrewchambers/tccmirror,acook/tinycc,seyko2/tinycc,Saectar/inherpreter