patch 8.2.4808: unused item in engine struct Commit: https://github.com/vim/vim/commit/33d3ce640c63366e26b84c8d6f5798187a258ee2 Author: Bram Moolenaar <Bram@vim.org> Date: Sat Apr 23 10:41:35 2022 +0100 patch 8.2.4808: unused item in engine struct Problem: Unused item in engine struct. Solution: Remove "expr". Add comment with tags.

# 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/