Ensure feature parity for cmake with Makefile #5582
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Add documentation strings and defaults for CMake cache variables including TARGET, BINARY, threading options, vector extensions, memory tuning, and precision types. Treat empty string values as "not set" to allow auto-detection while keeping options visible in ccmake. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Changes: - Add THREAD_TIMEOUT option for thread spin-wait timeout configuration - Prevent in-tree builds with clear error message (protects Makefiles) - Fix ARCH variable to not redundantly re-set when user provides it - Remove experimental warning (CMake now has full Makefile.rule parity) All Makefile.rule options are now supported in CMake: | Makefile.rule Option | CMake Equivalent | |-------------------------------|-------------------------------------| | LIBNAMEPREFIX | LIBNAMEPREFIX | | LIBNAMESUFFIX | LIBNAMESUFFIX | | TARGET | TARGET | | DYNAMIC_ARCH | DYNAMIC_ARCH | | DYNAMIC_OLDER | DYNAMIC_OLDER | | BINARY | BINARY | | USE_THREAD | USE_THREAD | | USE_LOCKING | USE_LOCKING | | USE_OPENMP | USE_OPENMP | | OMP_SCHED | OMP_SCHED | | NUM_THREADS | NUM_THREADS | | NUM_PARALLEL | NUM_PARALLEL | | BUFFERSIZE | BUFFERSIZE | | NO_STATIC / NO_SHARED | BUILD_STATIC_LIBS / BUILD_SHARED_LIBS | | NO_CBLAS | BUILD_WITHOUT_CBLAS | | ONLY_CBLAS | ONLY_CBLAS | | NO_LAPACK | BUILD_WITHOUT_LAPACK | | NO_LAPACKE | BUILD_WITHOUT_LAPACKE | | BUILD_LAPACK_DEPRECATED | BUILD_LAPACK_DEPRECATED | | LAPACK_STRLEN | LAPACK_STRLEN | | BUILD_RELAPACK | BUILD_RELAPACK | | RELAPACK_REPLACE | RELAPACK_REPLACE | | USE_SIMPLE_THREADED_LEVEL3 | USE_SIMPLE_THREADED_LEVEL3 | | USE_TLS | USE_TLS | | INTERFACE64 | INTERFACE64 | | NO_WARMUP | NO_WARMUP | | NO_AFFINITY | NO_AFFINITY | | BIGNUMA | BIGNUMA | | EMBEDDED | EMBEDDED | | NO_AVX / NO_AVX2 / NO_AVX512 | NO_AVX / NO_AVX2 / NO_AVX512 | | FUNCTION_PROFILE | FUNCTION_PROFILE | | QUAD_PRECISION | QUAD_PRECISION | | THREAD_TIMEOUT | THREAD_TIMEOUT | | DEVICEDRIVER_ALLOCATION | DEVICEDRIVER_ALLOCATION | | HUGETLB_ALLOCATION | HUGETLB_ALLOCATION | | HUGETLBFILE_ALLOCATION | HUGETLBFILE_ALLOCATION | | CONSISTENT_FPCSR | CONSISTENT_FPCSR | | GEMM_MULTITHREAD_THRESHOLD | GEMM_MULTITHREAD_THRESHOLD | | SANITY_CHECK | SANITY_CHECK | | MAX_STACK_ALLOC | MAX_STACK_ALLOC | | SYMBOLPREFIX / SYMBOLSUFFIX | SYMBOLPREFIX / SYMBOLSUFFIX | | CPP_THREAD_SAFETY_TEST | CPP_THREAD_SAFETY_TEST | | CPP_THREAD_SAFETY_GEMV | CPP_THREAD_SAFETY_GEMV | | BUILD_BFLOAT16 / BUILD_HFLOAT16 | BUILD_BFLOAT16 / BUILD_HFLOAT16 | | BLAS3_MEM_ALLOC_THRESHOLD | BLAS3_MEM_ALLOC_THRESHOLD | | BUILD_SINGLE/DOUBLE/COMPLEX/COMPLEX16 | BUILD_SINGLE/DOUBLE/COMPLEX/COMPLEX16 | | ARM_SOFTFP_ABI | ARM_SOFTFP_ABI | | DEBUG | CMAKE_BUILD_TYPE=Debug | | PREFIX | CMAKE_INSTALL_PREFIX | | HOSTCC | CMake toolchain files | 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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Claude analyzed the Makefiles and CMakeList and found the list of options that needed to be implemented in cmake to lead to exact feature parity
This is built upon #5581 documentation, since it adds documentation for the new options also.
Changes:
All Makefile.rule options are now supported in CMake: