Windows Clang May 2026

The days of treating Clang as a "Unix compiler" are over. On Windows, Clang is a professional, performant, first-class citizen. Give it a week in your CI pipeline—you won't go back. Have you migrated a large Windows codebase to Clang? Share your build time improvements and horror stories in the comments below.

# In a VS Developer Command Prompt clang-cl --version # Output: clang version 17.0.3 Target: x86_64-pc-windows-msvc echo int main() {} > test.cpp clang-cl /EHsc test.cpp /Fe:test.exe test.exe windows clang

Traditional MSVC linking of a large C++ project (say, Chrome or Unreal Engine) can take minutes. LLD reduces that to seconds. The days of treating Clang as a "Unix compiler" are over

It works. No hacks. No cygwin. No WSL.