Code no longer builds "unsupported option for target"

Question

perdrix52 OP

Created Apr ’25

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A short while ago, I added:

set(CMAKE_OSX_DEPLOYMENT_TARGET 13.0 CACHE STRING "Minimum operating system version for deployment")

to my top level CMake file.

The code would not compile. So I removed the line and deleted the CMake cache and tried to rebuild.

And for my pains I got this:

c++: error: unsupported option '-mavx' for target 'arm64-apple-darwin24.4.0'
c++: error: unsupported option '-mavx2' for target 'arm64-apple-darwin24.4.0'
c++: error: unsupported option '-mfma' for target 'arm64-apple-darwin24.4.0'
c++: error: unsupported option '-mssse3' for target 'arm64-apple-darwin24.4.0'

This code was all compiled just fine up until this change, but now it just won't do so.

Help!!! David

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Answer 1

perdrix52 OP

Apr ’25

Accepted Answer

It turns out that it may have been an update to XCode that caused the errors to be reported when none were previously.

I just hadn't tried to build the code since before the update.

So this can be ignored <BLUSH>

David

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