3fc61716b3
SDL contains AltiVec instructions, whose support is not properly detected at runtime. Disable AltiVec on powerpc to fix SIGILLs on macppc G3s, while keeping it for powerpc64. « Later, one might try to enable altivec again by moving the altivec blitter to a separate file, and compiling only that file with -maltivec (as xenocara/lib/pixman does now). » - gkoehler@ Reported by @will@empty.cafe. OK gkoehler@, no news from thfr@ (maintainer)