In [emacs-w3m : No.12540]
On Fri, 27 Nov 2015 09:26:31 +0900, Katsumi Yamaoka wrote:
> Anyway, I'll add this issue to the TODO list:
> Pass a Cygwin path name to `install-info' when installing info
> files for Windows Emacs by using Cygwin.
Done (hopefully).