BLD: use -ftrapping-math
with Clang on macOS in Meson build
#24060
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
The distutils build also uses this flag, and it avoids some problems with
floor_divide
and similar functions (xref gh-19479).For older macOS arm64 Clang versions, the flag does get accepted, but then gets overridden because it's not actually supported - which yields these warnings:
Since they're a little annoying to suppress (at least without completely disabling those warnings, which doesn't seem desirable) and will go away when updating to the latest XCode version, we'll ignore these warnings.