patch 9.0.0316: screen flickers when 'cmdheight' is zero Commit: https://github.com/vim/vim/commit/f73e5ba56f4aca1cd6e38f1c8ea24e941bf6b33f Author: Bram Moolenaar <Bram@vim.org> Date: Mon Aug 29 12:41:06 2022 +0100 patch 9.0.0316: screen flickers when 'cmdheight' is zero Problem: Screen flickers when 'cmdheight' is zero. Solution: Redraw over existing text instead of clearing.

# 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/