Prepare DejaGNU to be compiled: ./configure --prefix=/tools Build and install the package: make make install This completes the testing tools. We can now rebuild GCC and Binutils to link them against the new Glibc, and test them properly. One thing to note, however, is that these test suites are highly dependent on the features supported by your host distribution. Most notably, a host distribution which does not properly support the devpts filesystem will cause most of these tests to fail.