patch 8.2.3177: Vim9: can not use "for _ in expr" at script level Commit: https://github.com/vim/vim/commit/ad2d4969e1616d3a0354c181e3a09271d5433b3d Author: Bram Moolenaar <Bram@vim.org> Date: Sun Jul 18 17:08:50 2021 +0200 patch 8.2.3177: Vim9: can not use "for _ in expr" at script level Problem: Vim9: can not use "for _ in expr" at script level. Solution: Skip assignment if the loop variable is "_".

/^CFLAGS[[:blank:]]*=/s/$/ -Wno-error=missing-field-initializers/
/^RUBY_CFLAGS[[:blank:]]*=/s/$/ -Wno-error=unknown-attributes -Wno-error=ignored-attributes/