From a72c5b53880f931a176292f205a1c1db86156347 Mon Sep 17 00:00:00 2001
From: Alyssa Ross <hi@alyssa.is>
Date: Sun, 19 Apr 2020 11:41:32 +0000
Subject: [PATCH] modemmanager: enableParallelBuilding

Seems to work fine for me at -j48.
---
 pkgs/tools/networking/modem-manager/default.nix | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/pkgs/tools/networking/modem-manager/default.nix b/pkgs/tools/networking/modem-manager/default.nix
index e9d925fb930..badfddd6d50 100644
--- a/pkgs/tools/networking/modem-manager/default.nix
+++ b/pkgs/tools/networking/modem-manager/default.nix
@@ -30,6 +30,8 @@ stdenv.mkDerivation rec {
     export G_TEST_DBUS_DAEMON="${dbus.daemon}/bin/dbus-daemon"
   '';
 
+  enableParallelBuilding = true;
+
   doCheck = true;
 
   meta = with stdenv.lib; {