wget http://slackware.at/data/slackware-current/source/l/zlib/zlib-1.2.2.tar.gz wget http://slackware.at/data/slackware-current/source/l/zlib/zlib.overflow.diff.gz tar xvfz zlib-1.2.2.tar.gz cd zlib-1.2.2 zcat ../zlib.overflow.diff.gz|patch -p1 CFLAGS="-O2 -march=pentium4" ./configure --prefix=/usr make clean all su -c 'make install' CFLAGS="-O2 -march=pentium4" ./configure --prefix=/usr --shared make clean all su -c 'make install'