diff --git a/.gitignore b/.gitignore
index daf913b1..b7006615 100644
--- a/.gitignore
+++ b/.gitignore
@@ -22,3 +22,5 @@ _testmain.go
 *.exe
 *.test
 *.prof
+*.tar.gz
+*.zip
diff --git a/build.sh b/build.sh
new file mode 100755
index 00000000..5f605e1b
--- /dev/null
+++ b/build.sh
@@ -0,0 +1,37 @@
+#!/bin/bash
+set -euo pipefail
+set nullglob
+
+echo Get dependencies
+go get -d
+
+rm -rf relaysrv-*-*
+
+build() {
+	export GOOS="$1"
+	export GOARCH="$2"
+	target="relaysrv-$GOOS-$GOARCH"
+	go build -v
+	mkdir "$target"
+	if [ -f relaysrv ] ; then
+		mv relaysrv "$target"
+		tar zcvf "$target.tar.gz" "$target" 
+	fi
+	if [ -f relaysrv.exe ] ; then
+	      	mv relaysrv.exe "$target"
+		zip -r "$target.zip" "$target"
+	fi
+}
+
+for goos in linux darwin windows freebsd openbsd netbsd solaris ; do
+	build "$goos" amd64
+done
+for goos in linux windows freebsd openbsd netbsd ; do
+	build "$goos" 386
+done
+build linux arm
+
+# Hack used because we run as root under Docker
+if [[ ${CHOWN_USER:-} != "" ]] ; then
+	chown -R $CHOWN_USER .
+fi