https://bugzilla.redhat.com/show_bug.cgi?id=1060804
--- Comment #5 from Michael Schwendt <bugs.mich...@gmx.net> ---
> - Use %{__isa_bits} macro to expand to either 32 or 64 according to the
> architecture of the package
>
> %ifarch x86_64
> --enable-optimizations=sse2
> %else
> --enable-optimizations=none
> %endif
>
> becomes
>
> if [ %{__isa_bits} = "64" ]; then
> --enable-optimizations=sse2
> fi
For x86_64 SSE2 is enabled by default for GCC. The assumption that any other
64-bit arch also supports SSE2 doesn't sound correct.
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