[all-commits] [llvm/llvm-project] 1e53f9: [CMake] Remove some always-true HAVE_XXX_H

[Fangrui Song via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 1e53f9523d3d5fcb2993b4b6540f1ed8d743380b
      https://github.com/llvm/llvm-project/commit/1e53f9523d3d5fcb2993b4b6540f1ed8d743380b
  Author: Fangrui Song <i at maskray.me>
  Date:   2025-01-15 (Wed, 15 Jan 2025)

  Changed paths:
    M llvm/cmake/config-ix.cmake
    M llvm/include/llvm/Config/config.h.cmake
    M llvm/include/llvm/Support/FileSystem.h
    M llvm/lib/Analysis/ConstantFolding.cpp
    M llvm/lib/ExecutionEngine/RuntimeDyld/RTDyldMemoryManager.cpp
    M llvm/lib/Support/Errno.cpp
    M llvm/lib/Support/Unix/Path.inc
    M llvm/lib/Support/Unix/Process.inc
    M llvm/lib/Support/Unix/Program.inc
    M llvm/lib/Support/Unix/Signals.inc
    M llvm/lib/Support/Unix/Unix.h
    M llvm/lib/Support/raw_ostream.cpp
    M llvm/utils/gn/secondary/llvm/include/llvm/Config/BUILD.gn
    M utils/bazel/llvm-project-overlay/llvm/include/llvm/Config/config.h
    M utils/bazel/llvm_configs/config.h.cmake

  Log Message:
  -----------
  [CMake] Remove some always-true HAVE_XXX_H

These are unneeded even on AIX, PURE_WINDOWS, and ZOS (per #104706)

* HAVE_ERRNO_H: introduced by 1a93330ffa2ae2aa0b49461f05e6f0d51e8443f8 (2009) but unneeded.
  The guarded ABI is unconditionally used by lldb.
* HAVE_FCNTL_H
* HAVE_FENV_H
* HAVE_SYS_STAT_H

Pull Request: https://github.com/llvm/llvm-project/pull/123087



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