libHPC is a high-performance computing library focused on Linux and Windows environments. It provides SIMD-optimized kernels, concurrent data structures, GPU utilities, and HPC-oriented memory management components.

libHPC does not support macOS ARM (Apple Silicon).

The reason is simple:

Apple’s recent macOS / Xcode toolchain updates introduced ABI changes in libc++, causing oneTBB and other HPC components to fail at link-time.

These issues do not occur on Linux or Windows, and they did not occur on older macOS versions.

Since the goal of libHPC is stable, reproducible high-performance computing, macOS ARM is excluded to avoid degraded reliability or performance.

If the Apple toolchain becomes ABI-stable again or TBB provides upstream fixes, support may be reconsidered in the future.

libHPC previously worked on macOS ARM.
However, new Xcode toolchains explicitly mark several libc++ ABI symbols as forbidden (Xcode even shows a “prohibited symbol” icon), including std::__1::__hash_memory, which oneTBB depends on.

Since these symbols are removed at the SDK level, the issue cannot be fixed in libHPC or by configuration changes. As a result, macOS ARM support has been formally dropped.