On 05/05/2010 11:03 AM, Jezuch wrote: > > Sorry. > I am totally confused. The dir where it is installed is where? I had two > dirs, one where I unpacked the tar.bz, the name is gcc-4.5 and then gcc > where I executed the orders - configure make and make install. So the gcc > dir is install dir right? Sorry for such a question. You say you built and installed mpc. When you do "make install", mpc gets installed somewhere. Where exactly that is depends on how mpc was configured, but it's probably in /usr/local/lib. (or lib64) It's far easier to build mpc as part of gcc by copying the mpc source directory below the top-level gcc directory and building there. Andrew.