Summary of Changes

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This pull request refines the dependency tracking mechanism for clang-cl within the xmake build system. It introduces an intelligent detection for clang-cl's native dependency generation capabilities, allowing xmake to leverage the more efficient /clang:-MMD -MF flags when available. This enhancement aims to improve the accuracy and robustness of build dependency management for projects using clang-cl by adapting to the compiler's specific features.

Highlights

• Clang-cl Dependency File Detection: Implemented a new helper function, _has_clang_mmd, to dynamically check if the clang-cl compiler supports the /clang:-MMD -MF flags for generating dependency files.
• Conditional Dependency Generation: Modified the compile function to conditionally use the /clang:-MMD -MF flags (which produce GCC-style dependency files) if supported by clang-cl. If not supported, it falls back to the existing -showIncludes method (CL-style dependency files).
• Temporary Depfile Cleanup: Added logic to ensure that any temporary dependency files created using the /clang:-MMD -MF flags are properly removed after compilation, preventing file leakage.