Segher Boessenkool <seg...@kernel.crashing.org> writes: > On Thu, Oct 11, 2018 at 08:22:54AM +1030, Joel Stanley wrote: >> On Wed, 10 Oct 2018 at 22:41, Michael Ellerman <m...@ellerman.id.au> wrote: >> > Joel Stanley <j...@jms.id.au> writes: >> > > BOOTCFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \ >> > > - -fno-strict-aliasing -Os -msoft-float -pipe \ >> > > - -fomit-frame-pointer -fno-builtin -fPIC -nostdinc \ >> > > + -fno-strict-aliasing -Os -msoft-float -mno-altivec >> > > -mno-vsx \ >> > >> > That's going to break if the compiler doesn't understand -mno-vsx isn't it? >> > >> > I'm not sure if "support" a compiler that old though. >> >> Segher, the kernel mandates 4.6 as the minimum. Do we need to worry >> about the compiler not supporting -mno-altivec -mno-vsx? > > -mvsx is gcc 4.5 and later. > https://www.gnu.org/software/gcc/gcc-4.5/changes.html > > -maltivec is... Hrm, not so easy to find... gcc 3.1 and later it seems. > https://www.gnu.org/software/gcc/gcc-3.1/changes.html
Thanks. cheers
