From b062ac705df9d5b5040ce35c8c01cda394cd8a2a Mon Sep 17 00:00:00 2001
From: John Soo <john.soo@arista.com>
Date: Thu, 21 Apr 2022 09:31:53 -0700
Subject: [PATCH] Set GC_DONT_GC=1.

To avoid `Collecting from unknown thread'.
---
 src/nix-eval-jobs.cc | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/nix-eval-jobs.cc b/src/nix-eval-jobs.cc
index 51fb27e..347e889 100644
--- a/src/nix-eval-jobs.cc
+++ b/src/nix-eval-jobs.cc
@@ -282,6 +282,9 @@ int main(int argc, char * * argv)
        $NIX_PATH. */
     unsetenv("NIX_PATH");
 
+    /* We are doing the garbage collection by killing forks */
+    setenv("GC_DONT_GC", "1", 1);
+
     return handleExceptions(argv[0], [&]() {
         initNix();
         initGC();