mhaberler/linuxcnc — pull request #6 by zultron (2013-12-24 09:25:16+00:00)
Title: Override -mpreferred-stack-boundary on x86_64

When using SSE instructions, not normally allowed in the
kernel, the stack must be aligned at 16 bytes. Later
kernels (3.8.13, but not 3.5.7) try to set
-mpreferred-stack-boundary=3 on x86_64 arch, so force it.