Build fails on Ubuntu 20.04

[nordlow]

Trying to build as

cmake -DCMAKE_PREFIX_PATH=/usr/lib/llvm-10/include .
make

errors as

/home/per/Work/cpp2d/CPP2D/CPP2DPPHandling.h:30:7: error: ‘void CPP2DPPHandling::InclusionDirective(clang::SourceLocation, const clang::Token&, llvm::StringRef, bool, clang::CharSourceRange, const clang::FileEntry*, llvm::StringRef, llvm::StringRef, const clang::Module*)’ marked ‘override’, but does not override
...

on Ubuntu 20.04 with libclang-10-dev installed.

Is this because the Clang API has changed from version 6 to version 10?

[redthing1]

I am having this issue too.