[all-commits] [llvm/llvm-project] 28d732: [lldb][cmake] Set `CMAKE_OSX_SYSROOT` when buildin...

[Chelsea Cassanova via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 28d732a24ef06bab3a2cd6c17975281155f63cd6
      https://github.com/llvm/llvm-project/commit/28d732a24ef06bab3a2cd6c17975281155f63cd6
  Author: Chelsea Cassanova <chelsea_cassanova at apple.com>
  Date:   2025-05-14 (Wed, 14 May 2025)

  Changed paths:
    M lldb/tools/debugserver/source/CMakeLists.txt

  Log Message:
  -----------
  [lldb][cmake] Set `CMAKE_OSX_SYSROOT` when building debugserver with CMake 4 (#138020)

CMake 4 no longer sets the `CMAKE_OSX_SYSROOT` variable by default. If
you've updated to CMake 4 on macOS (e.g. with brew) and try building
LLDB with CMake/ninja, this will yield an error when building
debugserver that clang is unable to run since it tries to compile files
that don't exist.

These files are supposed to be generated by the `mig` process. `mig`
needs the `CMAKE_OSX_SYSROOT` variable in order to work and without it,
it silently fails to generate the files that later on need to be
compiled.

This commit sets this SDK path for mig and will fatal error out of config
when building debugserver without having set CMAKE_OSX_SYSROOT.



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