From 836491f610d6590859cae9f68a09a3900c478d2c Mon Sep 17 00:00:00 2001
From: Jean-Paul Calderone <exarkun@twistedmatrix.com>
Date: Fri, 20 Dec 2019 14:40:07 -0500
Subject: [PATCH] don't use -j with coverage, it doesn't work

---
 zkapauthorizer.nix | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/zkapauthorizer.nix b/zkapauthorizer.nix
index bb7e5e2..3edef94 100644
--- a/zkapauthorizer.nix
+++ b/zkapauthorizer.nix
@@ -10,7 +10,9 @@
 let
   hypothesisProfile' = if hypothesisProfile == null then "default" else hypothesisProfile;
   testSuite' = if testSuite == null then "_zkapauthorizer" else testSuite;
-  extraTrialArgs = builtins.concatStringsSep " " (if trialArgs == null then ["--rterrors" "--jobs=4" ] else trialArgs);
+  defaultTrialArgs = [ "--rterrors" ] ++ ( lib.optional ( ! collectCoverage ) "--jobs=4" );
+  trialArgs' = if trialArgs == null then defaultTrialArgs else trialArgs;
+  extraTrialArgs = builtins.concatStringsSep " " trialArgs';
 in
 buildPythonPackage rec {
   version = "0.0";
-- 
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