patch 8.2.4762: using freed memory using synstack() and synID() in WinEnter Commit: https://github.com/vim/vim/commit/ca7e86c23789eb0ed8f6400f25ea9e0e1036f9fc Author: zeertzjq <zeertzjq@outlook.com> Date: Sat Apr 16 16:49:24 2022 +0100 patch 8.2.4762: using freed memory using synstack() and synID() in WinEnter Problem: Using freed memory when using synstack() and synID() in WinEnter. Solution: Check using the syntax window. (closes https://github.com/vim/vim/issues/10204)

# 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/