for backward compatibility, argument to `-3` is optional when linked with glibc
for backward compatibility, argument to `-3` is optional when linked with glibc

h2o/h2o,yannick/h2o,h2o/h2o,devnexen/h2o,yannick/h2o,cwyang/h2o,devnexen/h2o,yannick/h2o,cwyang/h2o,h2o/h2o,h2o/h2o,devnexen/h2o,cwyang/h2o,h2o/h2o,devnexen/h2o,yannick/h2o,yannick/h2o,cwyang/h2o,cwyang/h2o,yannick/h2o,devnexen/h2o,yannick/h2o,devnexen/h2o,devnexen/h2o,yannick/h2o,h2o/h2o,cwyang/h2o,cwyang/h2o,yannick/h2o,h2o/h2o,devnexen/h2o,h2o/h2o,h2o/h2o,devnexen/h2o,cwyang/h2o