tree 23501faa5bbf6fed950782380113538aaa26e3c6
parent 65087ac7ce4cc5f2109967c1380b474955dcb590
author Akira TAGOH <akira@tagoh.org> 1570530910 +0900
committer Akira TAGOH <akira@tagoh.org> 1570533132 +0900

Warn as well if no directory name for cachedir provided

cachedir is used to determine where cache files are stored.
the empty directory will ends up to put them under the top of
directory of XDG_CACHE_HOME. that messes it up and must be avoided.

As a note, if you want to read/write something from the top of
XDG_DATA_HOME (dir) and/or XDG_CACHE_HOME (cachedir),
put "." instead of the empty.

https://gitlab.freedesktop.org/fontconfig/fontconfig/issues/180