Hi, virtualbox fails to compile for 2.5 due to gcc: [...] + ./configure --disable-qt3 --with-qt4-dir=/usr/share/qt4 --disable-hardening --ose --disable-pulse Checking for environment: Determined build machine: linux.x86, target machine: linux.x86, OK. Checking for kBuild: found, OK. Checking for gcc: ** There are known problems with gcc version 4.3 when compiling the recompiler ** stuff. You need to specify a compatibility compiler with version < 4.3. Look ** for a package compat-gcc-34 on Fedora systems or something similar on other ** distributions and call configure with parameter --with-gcc-compat=gcc34. [...] I installed contrib/gcc34 and modified the vbox port from 2.4: http://mikeux.dyndns.org/crux/files/virtualbox-crux2.5.diff Also I experienced some problems when the configure scripts checks for python stuff (python2.6), I removed the check_python invocation to see if the gcc43 error disapears, and seems it does the trick. Suggestions are welcome. Thanks, Jose V Beneyto