patch 8.2.4397: crash when using many composing characters in error message Commit: https://github.com/vim/vim/commit/34f8117dec685ace52cd9e578e2729db278163fc Author: Bram Moolenaar <Bram@vim.org> Date: Wed Feb 16 12:16:19 2022 +0000 patch 8.2.4397: crash when using many composing characters in error message Problem: Crash when using many composing characters in error message. Solution: Use mb_cptr2char_adv() instead of mb_ptr2char_adv().

# 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/