[release/9.0-staging] Fix build break with cmake 4.0#114278
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lewing merged 1 commit intorelease/9.0-stagingfrom Apr 5, 2025
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[release/9.0-staging] Fix build break with cmake 4.0#114278lewing merged 1 commit intorelease/9.0-stagingfrom
lewing merged 1 commit intorelease/9.0-stagingfrom
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cmake 4.0 no longer sets the CMAKE_OSX_SYSROOT variable for macOS targets: https://cmake.org/cmake/help/v4.0/release/4.0.html#other-changes > Builds targeting macOS no longer choose any SDK or pass an -isysroot flag to the compiler by default. Instead, compilers are expected to choose a default macOS SDK on their own. In order to use a compiler that does not do this, users must now specify -DCMAKE_OSX_SYSROOT=macosx when configuring their build. We need to stop passing the variable to swiftc in that case and rely on the default behavior.
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Infra change required to build. Tell mode. Applying servicing-approved. |
lewing
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akoeplinger
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Backport of #114277 to release/9.0-staging
/cc @akoeplinger
Customer Impact
This is an infrastructure/build-only change and required for us to build with cmake 4.0+.
Regression
No, it was caused by a change in cmake 4.0
Testing
CI testing
Risk
Low. This is a build-only change.