diff --git a/ghc.spec b/ghc.spec
index 206b08b..f60e9e3 100644
--- a/ghc.spec
+++ b/ghc.spec
@@ -1,5 +1,5 @@
 # Start: prod settings
-# all bcond_without for production builds:
+# all *bcond_without* for production builds:
 # - performance build (disable for quick build)
 %bcond perfbuild 1
 %bcond build_hadrian 1
@@ -9,7 +9,7 @@
 %endif
 # End: prod settings
 
-# without for production builds
+# not for production builds
 %if %{without perfbuild}
 # disable profiling libraries (overriding macros.ghc-srpm)
 %undefine with_ghc_prof
@@ -138,6 +138,10 @@ Patch24: buildpath-abi-stability.patch
 Patch26: no-missing-haddock-file-warning.patch
 Patch27: haddock-remove-googleapis-fonts.patch
 
+Patch30: https://src.opensuse.org/rpm/ghc/raw/branch/factory/sphinx7.patch
+
+# https://gitlab.haskell.org/ghc/ghc/-/wikis/platforms
+
 # fedora ghc has been bootstrapped on
 # %%{ix86} x86_64 s390x ppc64le aarch64
 # and retired arches: alpha sparcv9 armv5tel ppc ppc64 s390 armv7hl
@@ -456,6 +460,11 @@ rm libffi-tarballs/libffi-*.tar.gz
 %patch -P26 -p1 -b .orig
 %patch -P27 -p1 -b .orig
 
+#sphinx 7
+%if 0%{?fedora} >= 40
+%patch -P30 -p1 -b .orig
+%endif
+
 %if %{with haddock} && %{without hadrian}
 %global gen_contents_index gen_contents_index.orig
 if [ ! -f "libraries/%{gen_contents_index}" ]; then
@@ -465,7 +474,6 @@ fi
 %endif
 
 %if %{without hadrian}
-# https://gitlab.haskell.org/ghc/ghc/-/wikis/platforms
 cat > mk/build.mk << EOF
 %if %{with perfbuild}
 %ifarch %{ghc_llvm_archs}
@@ -552,6 +560,9 @@ cd hadrian
 %global hadrian_llvm +llvm
 %endif
 %define hadrian_docs %{!?with_haddock:--docs=no-haddocks} --docs=%[%{?with_manual} ? "no-sphinx-pdfs" : "no-sphinx"]
+# aarch64 with 224 cpus: _build/stage0/bin/ghc: createProcess: pipe: resource exhausted (Too many open files)
+# https://koji.fedoraproject.org/koji/taskinfo?taskID=105428124
+%global _smp_ncpus_max 64
 # quickest does not build shared libs
 # try release instead of perf
 %{hadrian} %{?_smp_mflags} --flavour=%[%{?with_perfbuild} ? "perf" : "quick"]%{!?with_ghc_prof:+no_profiled_libs}%{?hadrian_llvm} %{hadrian_docs} binary-dist-dir
diff --git a/sphinx7.patch b/sphinx7.patch
new file mode 100644
index 0000000..0eb1dbd
--- /dev/null
+++ b/sphinx7.patch
@@ -0,0 +1,26 @@
+From 52d701b31dc4427b7e321a04be3f5f13a5fc271e Mon Sep 17 00:00:00 2001
+From: "mimi.vx" <mimi.vx@gmail.com>
+Date: Wed, 24 May 2023 12:42:15 +0000
+Subject: [PATCH] Fix for Sphinx 7 removed style key
+
+Fixes https://gitlab.haskell.org/ghc/ghc/-/issues/23444
+---
+ docs/users_guide/rtd-theme/layout.html | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/docs/users_guide/rtd-theme/layout.html b/docs/users_guide/rtd-theme/layout.html
+index 2a61142514a..7ffeff7befc 100644
+--- a/docs/users_guide/rtd-theme/layout.html
++++ b/docs/users_guide/rtd-theme/layout.html
+@@ -64,7 +64,7 @@
+   {%- endif %}
+ 
+   {# CSS #}
+-  <link rel="stylesheet" href="{{ pathto('_static/' + style, 1) }}" type="text/css" />
++  <link rel="stylesheet" href="{{ pathto('_static/' + styles[-1], 1) }}" type="text/css" />
+   <link rel="stylesheet" href="{{ pathto('_static/pygments.css', 1) }}" type="text/css" />
+   {%- for css in css_files %}
+     {%- if css|attr("rel") %}
+-- 
+GitLab
+