Command explanations --enable-languages=c,c++: This only builds the C and C++ compilers and not the other available compilers as they are, on the average, not often used. If you do need those other compilers don't use the --enable-languages parameter. ln -s ../usr/lib/gcc-lib/*/2.95.2.1/cpp cpp: This creates the $LFS/lib/cpp symlink. Some packages explicitely try to find cpp in /lib. ln -s ../usr/lib/gcc-lib/*/2.95.2.1/cpp cpp: This creates the $LFS/usr/lib/cpp symlink as there are packages that expect cpp to be in /usr/lib.