Hi, This worked for me: > lftpget ftp.gnu.org:/gnu/gcc/gcc-3.4.1/gcc-core-3.4.1.tar.gz > > tar xvfz gcc-core-3.4.1.tar.gz ..... Thank you! Without any change in arguments of gcc calls I get 2% speed improvement in our code. (Mainly floating point calculations.) Now I will try whether some special command line switches work better in 3.4.1. Thank youu again, András