From 07cfc1553fca3f686be7fdd3ddaa07a0fc8e1503 Mon Sep 17 00:00:00 2001
From: Ben Darwin <bcdarwin@gmail.com>
Date: Sun, 26 Jun 2016 16:52:58 -0400
Subject: [PATCH] stan: fix build by not running tests with nonexistent
 /usr/bin/python (#15968)

---
 pkgs/development/compilers/cmdstan/default.nix | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/pkgs/development/compilers/cmdstan/default.nix b/pkgs/development/compilers/cmdstan/default.nix
index 182808031e6..4bfe72c7acd 100644
--- a/pkgs/development/compilers/cmdstan/default.nix
+++ b/pkgs/development/compilers/cmdstan/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl }:
+{ stdenv, fetchurl, python }:
 
 stdenv.mkDerivation rec {
   name = "cmdstan-2.9.0";
@@ -10,9 +10,10 @@ stdenv.mkDerivation rec {
 
   buildFlags = "build";
   enableParallelBuilding = true;
+  nativeBuildInputs = stdenv.lib.optional doCheck python;
 
   doCheck = true;
-  checkPhase = "./runCmdStanTests.py src/test/interface";
+  checkPhase = "python ./runCmdStanTests.py src/test/interface";  # see #5368
 
   installPhase = ''
     mkdir -p $out/opt $out/bin