From 107613ad2b2b61ef92edf9ee53ec71ad664be71b Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <edolstra@gmail.com>
Date: Wed, 4 May 2022 11:31:39 +0200
Subject: [PATCH] Fix compiler warning

---
 src/libstore/build/worker.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/libstore/build/worker.cc b/src/libstore/build/worker.cc
index e7c01a737..b192fbc77 100644
--- a/src/libstore/build/worker.cc
+++ b/src/libstore/build/worker.cc
@@ -350,7 +350,7 @@ void Worker::waitForInput()
        become `available'.  Note that `available' (i.e., non-blocking)
        includes EOF. */
     std::vector<struct pollfd> pollStatus;
-    std::map <int, int> fdToPollStatus;
+    std::map<int, size_t> fdToPollStatus;
     for (auto & i : children) {
         for (auto & j : i.fds) {
             pollStatus.push_back((struct pollfd) { .fd = j, .events = POLLIN });