Greetings, I just build,configuring and ran the tests from the upstream gcc git repo like this: mdkir odbjir cd obdjir $PWD/../gcc/configure --prefix=$HOME/GCC-deve make -j8 make bootstrap make -k check Those are the steps from the offical docs unless I am missing a step i.e. does make install need to be done or not? Don't know if this a reported issue or not. Cheers, Nick