travis 6

configure

@@ -14,5 +14,9 @@ sudo apt-get update $y
 # We are just using the host SDL for now, if it causes too much problems we might remove it.
 # libsdl2-dev needs to be installed separatedly from sudo apt-get build-dep qemu
 # because Ubuntu 16.04's QEMU uses SDL 1.
-sudo apt-get install $y build-essential libsdl2-dev
+sudo apt-get install $y \
+  build-essential \
+  coreutils \
+  libsdl2-dev \
+;
 sudo apt-get build-dep $y qemu