patch 8.1.0704: building with Ruby 2.6 gives compiler warnings commit https://github.com/vim/vim/commit/f62fc316a212160d1c58be88f30efd11eb595493 Author: Bram Moolenaar <Bram@vim.org> Date: Tue Jan 8 20:29:32 2019 +0100 patch 8.1.0704: building with Ruby 2.6 gives compiler warnings Problem: Building with Ruby 2.6 gives compiler warnings. Solution: Define a stub for rb_ary_detransient. (Ozaki Kiichi, closes https://github.com/vim/vim/issues/3779)