Hi I'm trying to build gcc from svn on debian testing, I manually solved a couple of obstacles like crti.o and crtn.o not being found. By cp /usr/lib/x86_64-linux-gnu/crti.o x86_64-unknown-linux-gnu/libgcc/ In which location are they expected? Now I'm stuck with the following error: checking for x86_64-unknown-linux-gnu-gcc... /home/piotr/devel/gcc_obj/./gcc/xgcc -B/home/piotr/devel/gcc_obj/./gcc/ -B/usr/local/x86_64-unknown-linux-gnu/bin/ -B/usr/local/x86_64-unknown-linux-gnu/lib/ -isystem /usr/local/x86_64-unknown-linux-gnu/include -isystem /usr/local/x86_64-unknown-linux-gnu/sys-include checking for C compiler default output file name... configure: error: in `/home/piotr/devel/gcc_obj/x86_64-unknown-linux-gnu/libgomp': configure: error: C compiler cannot create executables See `config.log' for more details. make[2]: *** [configure-stage1-target-libgomp] Error 77 make[2]: Leaving directory `/home/piotr/devel/gcc_obj' make[1]: *** [stage1-bubble] Error 2 make[1]: Leaving directory `/home/piotr/devel/gcc_ob Any clues?