Hello, just changing the build dependency is *not* enough. The code itself must be updated to be compatible with llvm/clang 21.
Luckily upstream already did this in 0.25: <https://github.com/include-what-you-use/include-what-you-use/releases/tag/0.25> > Compatible with Clang 21. The already is yet a newer version 0.26: <https://github.com/include-what-you-use/include-what-you-use/releases/tag/0.26> > Compatible with Clang 22. Philipp
