/usr/bin/msp430-gcc is in gcc-msp430 4.6.3~mspgcc-20120406-7ubuntu3.
This file is owned by root:root, with mode 0o755.
It is a symlink to /usr/bin/./usr/bin/msp430-gcc-4.6.3
/usr/bin/./usr/bin/msp430-gcc-4.6.3