function check_prerequisites() { global $gcc, $libphp; # if (!check_for_program ($gcc)) return false; if (!check_for_program("{$libphp}/libphp5.so")) { return false; } return true; }
function check_global_prerequisites() { global $php; return check_for_program($php); }
function check_prerequisites() { global $phc_compile_plugin; return check_for_program($phc_compile_plugin); }
function check_prerequisites() { global $graphviz_gc; return check_for_program($graphviz_gc); }