From 27d3a18ac7d34b66a14b634cb785e8c8caef024b Mon Sep 17 00:00:00 2001
From: Frederik Rietdijk <fridh@fridh.nl>
Date: Thu, 19 Nov 2020 20:57:22 +0100
Subject: [PATCH] buildPython*: don't catch conflicts when cross-compiling

Hack until we fix PYTHONPATH.
---
 pkgs/development/interpreters/python/mk-python-derivation.nix | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/pkgs/development/interpreters/python/mk-python-derivation.nix b/pkgs/development/interpreters/python/mk-python-derivation.nix
index c85a5939055..670c870f107 100644
--- a/pkgs/development/interpreters/python/mk-python-derivation.nix
+++ b/pkgs/development/interpreters/python/mk-python-derivation.nix
@@ -53,7 +53,9 @@
 , disabled ? false
 
 # Raise an error if two packages are installed with the same name
-, catchConflicts ? true
+# TODO: For cross we probably need a different PYTHONPATH, or not
+# add the runtime deps until after buildPhase.
+, catchConflicts ? (python.stdenv.hostPlatform == python.stdenv.buildPlatform)
 
 # Additional arguments to pass to the makeWrapper function, which wraps
 # generated binaries.