patch 8.2.4039: the xdiff library is linked in even when not used Commit: https://github.com/vim/vim/commit/67ffb417861a90fd2c1b215a42fd230272ed94cb Author: Bram Moolenaar <Bram@vim.org> Date: Sat Jan 8 13:36:57 2022 +0000 patch 8.2.4039: the xdiff library is linked in even when not used Problem: The xdiff library is linked in even when not used. Solution: Use configure to decide whether xdiff object files are included.

# 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/