From 609b72142546c922b1ca52ac7bf9ae00c2f452c0 Mon Sep 17 00:00:00 2001
From: Linus Heckemann <git@sphalerite.org>
Date: Fri, 31 May 2024 19:30:35 +0200
Subject: libstore/filetransfer: fix no-s3 build

Fixes a compiler error that looks like:

error: could not convert '[...]' from 'future<void>' to 'future<nix::FileTransferResult>'
Change-Id: I4aeadfeba0dadfdf133f25e6abce90ede7a86ca6
---
 src/libstore/filetransfer.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/libstore/filetransfer.cc b/src/libstore/filetransfer.cc
index fd341b2f0..156ab6f7a 100644
--- a/src/libstore/filetransfer.cc
+++ b/src/libstore/filetransfer.cc
@@ -656,7 +656,7 @@ struct curlFileTransfer : public FileTransfer
         /* Ugly hack to support s3:// URIs. */
         if (request.uri.starts_with("s3://")) {
             // FIXME: do this on a worker thread
-            return std::async(std::launch::deferred, [uri{request.uri}] {
+            return std::async(std::launch::deferred, [uri{request.uri}]() -> FileTransferResult {
 #if ENABLE_S3
                 auto [bucketName, key, params] = parseS3Uri(uri);
 
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