https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63901
--- Comment #2 from Nick Clifton <nickc at redhat dot com> --- Hi Peter, The whole hardware multiply selection thing is a bit of a mess... The uploaded patch should resolve the problem for now by building newlib with software multiply enabled. In the long term we ought to work out a way to enable multilib versions of newlib based upon the hardware multiply supported. The problem with that is that multilib selection is based solely upon the command line options used which means that a list of all known MSP430 MCU types would probably have to be built into the specs - a bad idea that will fail as soon as a new MCU type is created. Cheers Nick