patch 9.0.1069: diff mode highlight fails for special characters Commit: https://github.com/vim/vim/commit/417e88bb75ee8af1bf696760bba9f114a007f733 Author: Bram Moolenaar <Bram@vim.org> Date: Sat Dec 17 15:03:02 2022 +0000 patch 9.0.1069: diff mode highlight fails for special characters Problem: Diff mode highlight fails for special characters. Solution: Adjust condition for setting "diff_hlf".

# Clang 12 (or Apple clang 13) and later makes a warning '-Wcompound-token-split-by-macro' enable by default.
/^PERL_CFLAGS_EXTRA[[:blank:]]*=/s/$/ -Wno-error=compound-token-split-by-macro/
/^RUBY_CFLAGS_EXTRA[[:blank:]]*=/s/$/ -Wno-error=compound-token-split-by-macro/