Update HACKING on building pull requests
Update HACKING on building pull requests
libcheck/check,9fcc/check,libcheck/check,libcheck/check,libcheck/check,libcheck/check,9fcc/check,brarcher/check,brarcher/check,9fcc/check,brarcher/check,9fcc/check,brarcher/check,brarcher/check,9fcc/check