On Tue, 2015-04-14 at 17:37 +0200, Harald Servat wrote: > I'm trying to compile the GCC's trunk but I find out the following > error while compiling it. I've configured it such as This question is not appropriate for this mailing list, as this list is only for questions about gcc development. You should continue this on the gcc-help mailing list. > ./configure --prefix=/home/harald/pkg/gcc/git > --enable-languages=c,c++ --disable-multilib Building gcc within the GCC source tree is not supported. try creating an empty build directory and using: /path/to/gcc/source/directory/configure .... Peter