diff --git a/build/savestdout/savestdout.go b/build/savestdout/savestdout.go
new file mode 100644
index 0000000..a0fb709
--- /dev/null
+++ b/build/savestdout/savestdout.go
@@ -0,0 +1,51 @@
+// Copyright 2020 The Monogon Project Authors.
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package main
+
+import (
+	"log"
+	"os"
+	"os/exec"
+)
+
+func main() {
+	if len(os.Args) < 3 {
+		log.Fatalf("Usage: %s output_file program <args...>", os.Args[0])
+	}
+
+	f, err := os.Create(os.Args[1])
+	if err != nil {
+		log.Fatalf("Create(%q): %v", os.Args[1], err)
+	}
+	defer f.Close()
+
+	args := os.Args[3:]
+	cmd := exec.Command(os.Args[2], args...)
+	cmd.Stderr = os.Stderr
+	cmd.Stdout = f
+
+	err = cmd.Run()
+	if err == nil {
+		return
+	}
+
+	if e, ok := err.(*exec.ExitError); ok {
+		os.Exit(e.ExitCode())
+	}
+
+	log.Fatalf("Could not start command: %v", err)
+}