First apply a patch: patch -Np1 -i ../expect-&expect-patch-version;.patch This fixes a bug in Expect that can result in bogus failures during the GCC test suite run. Now prepare Expect to be compiled: ./configure --prefix=/tools --with-tcl=/tools/lib --with-x=no Build the package: make This package has a testsuite available which can perform a number of checks to ensure it built correctly. Should you choose to run it, the following command will do so: make test And install: make install You can now remove the source directories of both Tcl and Expect.