[all-commits] [llvm/llvm-project] 6a4f84: [libc] Only use __has_builtin on clang

[Alex Brachet via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 6a4f8423ae681c4feb7481b9c7e222cc6cdb2c45
      https://github.com/llvm/llvm-project/commit/6a4f8423ae681c4feb7481b9c7e222cc6cdb2c45
  Author: Alex Brachet <alexbrachetmialot at gmail.com>
  Date:   2020-03-28 (Sat, 28 Mar 2020)

  Changed paths:
    M libc/src/string/memory_utils/memcpy_utils.h

  Log Message:
  -----------
  [libc] Only use __has_builtin on clang

The preprocessor reads the whole line even if the first condition of an and is false so this broke when compiling on older gcc versions which don't recognize `__has_builtin`