From 640b1bb38b64f7270b06b502c2d6eae817dddd67 Mon Sep 17 00:00:00 2001
From: squalus <squalus@squalus.net>
Date: Tue, 12 Jul 2022 20:39:33 -0700
Subject: [PATCH] python310Packages.pydantic: fix cross compile

make the doc build optional, and disable for cross builds
---
 .../python-modules/pydantic/default.nix          | 16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)

diff --git a/pkgs/development/python-modules/pydantic/default.nix b/pkgs/development/python-modules/pydantic/default.nix
index 25a5d54d529e..a1f567adcd59 100644
--- a/pkgs/development/python-modules/pydantic/default.nix
+++ b/pkgs/development/python-modules/pydantic/default.nix
@@ -1,4 +1,5 @@
 { lib
+, stdenv
 , buildPythonPackage
 , cython
 , devtools
@@ -10,6 +11,7 @@
 , pythonOlder
 , typing-extensions
 # dependencies for building documentation.
+, withDocs ? (stdenv.hostPlatform == stdenv.buildPlatform)
 , ansi2html
 , markdown-include
 , mkdocs
@@ -25,7 +27,13 @@
 buildPythonPackage rec {
   pname = "pydantic";
   version = "1.9.0";
-  outputs = [ "out" "doc" ];
+
+  outputs = [
+    "out"
+  ] ++ lib.optionals withDocs [
+    "doc"
+  ];
+
   disabled = pythonOlder "3.7";
 
   src = fetchFromGitHub {
@@ -41,7 +49,7 @@ buildPythonPackage rec {
 
   nativeBuildInputs = [
     cython
-
+  ] ++ lib.optionals withDocs [
     # dependencies for building documentation
     ansi2html
     markdown-include
@@ -73,12 +81,12 @@ buildPythonPackage rec {
 
   # Must include current directory into PYTHONPATH, since documentation
   # building process expects "import pydantic" to work.
-  preBuild = ''
+  preBuild = lib.optionals withDocs ''
     PYTHONPATH=$PWD:$PYTHONPATH make docs
   '';
 
   # Layout documentation in same way as "sphinxHook" does.
-  postInstall = ''
+  postInstall = lib.optionals withDocs ''
     mkdir -p $out/share/doc/$name
     mv ./site $out/share/doc/$name/html
   '';