patch 9.0.1847: [security] potential oob write in do_addsub() Commit: https://github.com/vim/vim/commit/889f6af37164775192e33b233a90e86fd3df0f57 Author: Christian Brabandt <cb@256bit.org> Date: Sat Sep 2 19:43:33 2023 +0200 patch 9.0.1847: [security] potential oob write in do_addsub() Problem: potential oob write in do_addsub() Solution: don't overflow buf2, check size in for loop() Signed-off-by: Christian Brabandt <cb@256bit.org>

# 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/