patch 8.0.1335: writefile() using fsync() may give an error. commit https://github.com/vim/vim/commit/291a9d15ed1eb1094edc8ad6dda00a6da3bd7072 Author: Bram Moolenaar <Bram@vim.org> Date: Sat Nov 25 14:37:11 2017 +0100 patch 8.0.1335: writefile() using fsync() may give an error. Problem: Writefile() using fsync() may give an error for a device. (Yasuhiro Matsumoto) Solution: Ignore fsync() failing. (closes #2373)

README_src.txt for version 8.0 of Vim: Vi IMproved.

The source archive contains the files needed to compile Vim on Unix systems.
It is packed for Unix systems (NL line separator).

For more information, see the README.txt file that comes with the runtime
archive (vim-8.0-rt.tar.gz).  To be able to run Vim you MUST get the runtime
archive too!