From 95c727caef110c03900a77133eb3e873fca7f019 Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <edolstra@gmail.com>
Date: Tue, 2 Oct 2018 11:24:54 +0200
Subject: [PATCH] Remove the check against concurrent builds in the same
 process

---
 src/libstore/build.cc | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/src/libstore/build.cc b/src/libstore/build.cc
index 886c864a3..dfae8024a 100644
--- a/src/libstore/build.cc
+++ b/src/libstore/build.cc
@@ -4138,9 +4138,6 @@ void SubstitutionGoal::handleEOF(int fd)
 //////////////////////////////////////////////////////////////////////
 
 
-static bool working = false;
-
-
 Worker::Worker(LocalStore & store)
     : act(*logger, actRealise)
     , actDerivations(*logger, actBuilds)
@@ -4148,8 +4145,6 @@ Worker::Worker(LocalStore & store)
     , store(store)
 {
     /* Debugging: prevent recursive workers. */
-    if (working) abort();
-    working = true;
     nrLocalBuilds = 0;
     lastWokenUp = steady_time_point::min();
     permanentFailure = false;
@@ -4161,8 +4156,6 @@ Worker::Worker(LocalStore & store)
 
 Worker::~Worker()
 {
-    working = false;
-
     /* Explicitly get rid of all strong pointers now.  After this all
        goals that refer to this worker should be gone.  (Otherwise we
        are in trouble, since goals may call childTerminated() etc. in