Hello Andrey Gerasimenko, > Ideally you should measure compile times for large projects like Open > Office and find out what works best on your system. I would start with > 1 thread -O2 and -pipe. That would be an incredible waste of time because the OOo build replaces any -O? CFLAG with -O2. If you want to test this, use a more representative ebuild, preferably for a package you can time with a watch rather than a calendar. -- Neil Bothwick Accept that some days you're the pigeon, and some days you're the statue.