ghc: fix build with upstream patch, taken from ghc 8.6 branch

ghc (8.4.4+dfsg1-2) UNRELEASED; urgency=medium

ghc (8.4.4+dfsg1-2) unstable; urgency=medium

  [ Clint Adams ]

  * Patch Sphinx config to use locally-installed MathJax instead of a

    copy on the Internet.  closes: #919518.

 -- Clint Adams <clint@debian.org>  Fri, 18 Jan 2019 17:36:40 -0500

  [ Gianfranco Costamagna ]

  * Fix sphinx 1.8 build with upstream patch (Closes: #923445)

 -- Gianfranco Costamagna <locutusofborg@debian.org>  Thu, 28 Feb 2019 15:18:49 +0100

ghc (8.4.4+dfsg1-1) unstable; urgency=medium

Origin: https://git.haskell.org/ghc.git/commitdiff/a257782f56e5e330349d4cc7db71e297d8396c67

diff -Nru ghc-8.4.4+dfsg1/docs/users_guide/flags.py ghc-8.6.3+dfsg1/docs/users_guide/flags.py

--- ghc-8.4.4+dfsg1/docs/users_guide/flags.py	2017-11-28 17:39:29.000000000 +0100

+++ ghc-8.6.3+dfsg1/docs/users_guide/flags.py	2018-09-21 00:18:23.000000000 +0200

@@ -46,9 +46,11 @@

 from docutils import nodes

 from docutils.parsers.rst import Directive, directives

+import sphinx

 from sphinx import addnodes

 from sphinx.domains.std import GenericObject

 from sphinx.errors import SphinxError

+from distutils.version import LooseVersion

 from utils import build_table_from_list

 ### Settings

@@ -597,14 +599,18 @@

 ### Initialization

 def setup(app):

+    # The override argument to add_directive_to_domain is only supported by >= 1.8

+    sphinx_version = LooseVersion(sphinx.__version__)

+    override_arg = {'override': True} if sphinx_version >= LooseVersion('1.8') else {}

     # Add ghc-flag directive, and override the class with our own

     app.add_object_type('ghc-flag', 'ghc-flag')

-    app.add_directive_to_domain('std', 'ghc-flag', Flag)

+    app.add_directive_to_domain('std', 'ghc-flag', Flag, **override_arg)

     # Add extension directive, and override the class with our own

     app.add_object_type('extension', 'extension')

-    app.add_directive_to_domain('std', 'extension', LanguageExtension)

+    app.add_directive_to_domain('std', 'extension', LanguageExtension,

+                                **override_arg)

     # NB: language-extension would be misinterpreted by sphinx, and produce

     # lang="extensions" XML attributes

kfreebsd-aclocal.m4

revert-llvm-fixes

local-mathjax

fix-build-sphinx.patch