libtcc.c (put_extern_sym2): Extend the scope of buf to match its use
libtcc.c (put_extern_sym2): Extend the scope of buf to match its use

After leaving the code block that `buf' is defined, `buf' will not
exist, so `name' will point to a variable that does not exist.

andreiw/tinycc,avih/tinycc,rchandramouli/tinycc,run4flat/tinycc,code4game/tinycc,run4flat/tinycc,seyko2/tinycc,rchandramouli/tinycc,rchandramouli/tinycc,seyko2/tinycc,metaeducation/tcc,mirror/tinycc,fstudio/tinycc,metaeducation/tcc,mirror/tinycc,fstudio/tinycc,alfonsokim/tinycc,andreiw/tinycc,mingodad/tinycc,seyko2/tinycc,alfonsokim/tinycc,andrewchambers/tccmirror,code4game/tinycc,metaeducation/tcc,andrewchambers/tccmirror,metaeducation/tcc,rchandramouli/tinycc,avih/tinycc,run4flat/tinycc,run4flat/tinycc,run4flat/tinycc,mirror/tinycc,seyko2/tinycc,fstudio/tinycc,rchandramouli/tinycc,andrewchambers/tccmirror,code4game/tinycc,alfonsokim/tinycc,fstudio/tinycc,andrewchambers/tccmirror,fstudio/tinycc,andrewchambers/tccmirror,mingodad/tinycc,mirror/tinycc,alfonsokim/tinycc,avih/tinycc,metaeducation/tcc,seyko2/tinycc,mingodad/tinycc,mingodad/tinycc,andreiw/tinycc,avih/tinycc,alfonsokim/tinycc