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core: try to solve warnings caused by Apple's new LAPACK interface by fengyuentau · Pull Request #24804 · opencv/opencv · GitHub
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See https://cmake.org/cmake/help/latest/variable/CMAKE_OSX_DEPLOYMENT_TARGET.html for the first item. Looks like it's what you need. |
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asmorkalov
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Apr 17, 2024
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@vpisarev @asmorkalov @opencv-alalek Could you review and merge if no further changes are needed? |
asmorkalov
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May 6, 2024
asmorkalov
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Junyan721113
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May 22, 2024
core: try to solve warnings caused by Apple's new LAPACK interface opencv#24804 Resolves opencv#24660 Apple's BLAS documentation: https://developer.apple.com/documentation/accelerate/blas?language=objc New interface since macOS >= 13.3, iOS >= 16.4. Todo: - [x] Detect macOS version. - [x] ~Detect iOS versions (major and minor version).~ No calling of Accelerate New LAPACK on iOS. - [x] Solve calling `cblas_cgemm` and `cblas_zgemm`. ### Pull Request Readiness Checklist See details at https://github.com/opencv/opencv/wiki/How_to_contribute#making-a-good-pull-request - [x] I agree to contribute to the project under Apache 2 License. - [x] To the best of my knowledge, the proposed patch is not based on a code under GPL or another license that is incompatible with OpenCV - [x] The PR is proposed to the proper branch - [x] There is a reference to the original bug report and related work - [x] There is accuracy test, performance test and test data in opencv_extra repository, if applicable Patch to opencv_extra has the same branch name. - [x] The feature is well documented and sample code can be built with the project CMake
seanm
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May 22, 2024
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| execute_process(COMMAND sw_vers -productVersion | ||
| OUTPUT_VARIABLE MACOS_VERSION | ||
| OUTPUT_STRIP_TRAILING_WHITESPACE) |
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This is a problem... it checks the version of macOS on the machine doing the compiling, it does not check the version of macOS that's actually running the code (at runtime). It's common for a developer to be using a new macOS but wanting his code to still run on an old macOS, and that's why these kinds of checks are inappropriate.
Instead, we must check against the 'deployment target' chosen by the developer, set in CMAKE_OSX_DEPLOYMENT_TARGET.
Could we revert this merge, or correct this quickly?
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Let me take care of this. cc @asmorkalov @opencv-alalek
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core: deployment compatibility for old mac after Accelerate New LAPACK fix #25625 Attempt to fix #24804 (comment) We may need to explicitly add build option `-DCMAKE_OSX_DEPLOYMENT_TARGET=12.0` or environment variable (`export MACOSX_DEPLOYMENT_TARGET=12.0`) for mac builds (python package most probably) on builders with new macOS (>= 13.3). ### Pull Request Readiness Checklist See details at https://github.com/opencv/opencv/wiki/How_to_contribute#making-a-good-pull-request - [x] I agree to contribute to the project under Apache 2 License. - [x] To the best of my knowledge, the proposed patch is not based on a code under GPL or another license that is incompatible with OpenCV - [x] The PR is proposed to the proper branch - [x] There is a reference to the original bug report and related work - [ ] There is accuracy test, performance test and test data in opencv_extra repository, if applicable Patch to opencv_extra has the same branch name. - [ ] The feature is well documented and sample code can be built with the project CMake
This was referenced May 31, 2024
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Resolves #24660
Apple's BLAS documentation: https://developer.apple.com/documentation/accelerate/blas?language=objc
New interface since macOS >= 13.3, iOS >= 16.4.
Todo:
Detect iOS versions (major and minor version).No calling of Accelerate New LAPACK on iOS.cblas_cgemmandcblas_zgemm.Pull Request Readiness Checklist
See details at https://github.com/opencv/opencv/wiki/How_to_contribute#making-a-good-pull-request
Patch to opencv_extra has the same branch name.