patch 9.0.0853: terminal mouse test is still flaky on MacOS M1 Commit: https://github.com/vim/vim/commit/98aebcc2c6f4b131d2098ebc60c4a552a5163aec Author: Bram Moolenaar <Bram@vim.org> Date: Thu Nov 10 12:38:16 2022 +0000 patch 9.0.0853: terminal mouse test is still flaky on MacOS M1 Problem: Terminal mouse test is still flaky on MacOS M1. Solution: Also wait for the file to have some contents.

# 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/