From 4fa2f56bb86a31f805f8ee5be5732288b6773171 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Vladim=C3=ADr=20=C4=8Cun=C3=A1t?= <v@cunat.cz>
Date: Tue, 1 Aug 2023 08:12:42 +0200
Subject: [PATCH] python3Packages.pythran: unvendor the xsimd dependency

https://hydra.nixos.org/build/229711355/nixlog/150/tail
https://github.com/NixOS/nixpkgs/pull/246200#issuecomment-1658719714

pythran doesn't seem to support building with external xsimd,
but this source-symlink seems to work fine and it's header-only
C++ library anyway.
---
 pkgs/development/python-modules/pythran/default.nix | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/pkgs/development/python-modules/pythran/default.nix b/pkgs/development/python-modules/pythran/default.nix
index 7a55b2003ab7..25f21b2fa506 100644
--- a/pkgs/development/python-modules/pythran/default.nix
+++ b/pkgs/development/python-modules/pythran/default.nix
@@ -10,6 +10,7 @@
 , six
 , numpy
 , beniget
+, xsimd
 , isPy3k
 , substituteAll
 }:
@@ -36,6 +37,12 @@ in buildPythonPackage rec {
     })
   ];
 
+  # xsimd: unvendor this header-only C++ lib
+  postPatch = ''
+    rm -r third_party/xsimd
+    ln -s '${lib.getDev xsimd}'/include/xsimd third_party/
+  '';
+
   propagatedBuildInputs = [
     ply
     networkx