On 23 January 2017 at 10:12, Jonathan Wakely wrote: > Or just ensure libgmp.so and libmfr.so and libmpc.so are also > installed in the new partition. Or link to them statically, which is > what happens when using the contrib/downloadd_prerequisites script. More serious problem comes from ``fixed" headers in /usr/libexec/gcc/{arch}/{version}/include-fixed When GCC is being compiled, some headers may be automatically edited and copyed here. Since the system configuration of sda2 and sda7 are different, using sda7 headers in sda2 may lead to strange problems. -- Xi Ruoyao <ryxi@xxxxxxxxxxxxxxxxx> School of Aerospace Science and Technology, Xidian University