From 3b7f4c7d9d124283cec7f7d42e0eca3e2de64d5a Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <edolstra@gmail.com>
Date: Tue, 5 Oct 2021 11:04:46 +0200
Subject: [PATCH] Add FIXME about ptsname

---
 src/libstore/build/local-derivation-goal.cc | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/libstore/build/local-derivation-goal.cc b/src/libstore/build/local-derivation-goal.cc
index 2ba1b3f59..4cb43bc11 100644
--- a/src/libstore/build/local-derivation-goal.cc
+++ b/src/libstore/build/local-derivation-goal.cc
@@ -711,6 +711,7 @@ void LocalDerivationGoal::startBuilder()
     if (!builderOut.readSide)
         throw SysError("opening pseudoterminal master");
 
+    // FIXME: not thread-safe, use ptsname_r
     std::string slaveName(ptsname(builderOut.readSide.get()));
 
     if (buildUser) {