UserOverride.cmake: fix native optflag for PowerPC #2459
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I am not sure if this will work all the time, but we can merge it for now, and iterate on it later if needed. Thanks! |
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@certik This leaves out cases of Rosetta and cross-compilation for PowerPC, but they were broken anyway. |
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@certik This is needed for the build to be feasible on PowerPC, since
-marchis unsupported there.https://gcc.gnu.org/onlinedocs/gcc/RS_002f6000-and-PowerPC-Options.html
-mtuneshould be used instead;-mcpualso supported but may be unsafe and produce a broken code for some targets.