6c3660 subr/build_init.subr:build_{ast,init}(): call ex_rtl_kill_tree() on $$ on signal.

Authored and Committed by Lucio Andrés Illanes Albornoz 4 years ago
    subr/build_init.subr:build_{ast,init}(): call ex_rtl_kill_tree() on $$ on signal.
    subr/build_init.subr:build_init(): check for pgrep(1) in $PATH.
    subr/ex_rtl.subr:ex_rtl_kill_tree(): implement w/ pgrep(1).
    
        
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