ghc: patch release notes to not trip sphinx, and get ghc building again

srcpkgs/ghc/patches/sphinx-9-compat.patch

@@ -0,0 +1,31 @@
+Adapted from changes to sphinx_rtd_theme (which is vendored in ghc):
+commit d34b71bb0977b4265ceff07955e974cfa73a2405
+From: Manuel Kaufmann <humitos@gmail.com>
+Date: Tue, 29 Aug 2023 11:43:41 +0200
+Subject: [PATCH] Use `css_tag` helper to inject CSS files (#1519)
+
+* Use `css_tag` helper to inject CSS files
+
+* Typo
+---
+ sphinx_rtd_theme/layout.html | 8 ++------
+ 1 file changed, 2 insertions(+), 6 deletions(-)
+
+diff --git a/docs/users_guide/rtd-theme/layout.html b/docs/users_guide/rtd-theme/layout.html
+index a83bdd29e..f3de11ad0 100644
+--- a/docs/users_guide/rtd-theme/layout.html
++++ b/docs/users_guide/rtd-theme/layout.html
+@@ -29,11 +29,7 @@
+     <link rel="stylesheet" href="{{ pathto('_static/pygments.css', 1) }}" type="text/css" />
+   {%- endif %}
+-  {%- for css in css_files %}
++  {%- for css_file in css_files %}
+-    {%- if css|attr("rel") %}
+-      <link rel="{{ css.rel }}" href="{{ pathto(css.filename, 1) }}" type="text/css"{% if css.title is not none %} title="{{ css.title }}"{% endif %} />
+-    {%- else %}
+-      <link rel="stylesheet" href="{{ pathto(css, 1) }}" type="text/css" />
+-    {%- endif %}
++    {{ css_tag(css_file) }}
+   {%- endfor %}
+
+   {%- for cssfile in extra_css_files %}

srcpkgs/ghc/template

@@ -2,7 +2,7 @@
 pkgname=ghc
 # Keep this synchronized with http://www.stackage.org/lts
 version=9.8.4
-revision=1
+revision=2
 build_helper="haskell"
 _configure_args="--prefix=/usr"
 _hadrian_args="--prefix=/usr"