[commit: ghc] wip/fix-docs: circleci: Fix documentation building (14204c5)

[git at git.haskell.org]

Repository : ssh://git@git.haskell.org/ghc

On branch  : wip/fix-docs
Link       : http://ghc.haskell.org/trac/ghc/changeset/14204c59dc3130e947db5c9b156db3badc6d3781/ghc

>---------------------------------------------------------------

commit 14204c59dc3130e947db5c9b156db3badc6d3781
Author: Ben Gamari <ben at smart-cactus.org>
Date:   Fri Aug 3 16:48:18 2018 -0400

    circleci: Fix documentation building


>---------------------------------------------------------------

14204c59dc3130e947db5c9b156db3badc6d3781
 .circleci/config.yml                            | 18 ++++++++-------
 .circleci/images/i386-linux/Dockerfile          |  6 +++++
 .circleci/images/update-image                   | 30 +++++++++++++++++++++++++
 .circleci/images/x86_64-linux-fedora/Dockerfile | 19 +++++++++++++++-
 .circleci/images/x86_64-linux/Dockerfile        | 10 ++++++++-
 .circleci/prepare-system.sh                     | 20 ++++++++++++++---
 6 files changed, 90 insertions(+), 13 deletions(-)

Diff suppressed because of size. To see it, use:

    git diff-tree --root --patch-with-stat --no-color --find-copies-harder --ignore-space-at-eol --cc 14204c59dc3130e947db5c9b156db3badc6d3781