From mboxrd@z Thu Jan  1 00:00:00 1970
From: Mark H Weaver <mhw@netris.org>
Subject: bug#18640: [wishlist] fontconfig's cache is not refreshed
	automatically
Date: Sun, 05 Oct 2014 17:53:16 -0400
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To: 18640@debbugs.gnu.org

When a user runs emacs (or any other program that uses fontconfig), a
cache is created in ~/.cache/fontconfig.  This cache is not updated
automatically after installing new fonts, and must be manually cleared
out.

I guess this might be related to our use of Jan 1, 1970 as the
timestamps for all files in /gnu/store (which includes user profiles).

We should either modify fontconfig to detect a stale cache using a
method that works on Guix, or else notify the user that they must clear
the cache after installing ttf fonts.

      Mark