ofSetBackgroundAuto=false not working on Raspberry Pi

Calling ofSetBackgroundAuto(false); in setup() has no effect on Raspberry Pi 2 (BG is still cleared every time)

Running on Raspberry Pi 2 with of_v0.9.3_linuxarmv6l_release

Following code works as expected on a Mac, but not on Raspberry Pi

void ofApp::setup(){
    ofSetBackgroundAuto(false);
    ofSetFrameRate(30);
}

void ofApp::draw(){
    ofFill();
    for (int i = 0; i < 10; i++){
        ofSetColor((int)ofRandom(0,255),(int)ofRandom(0,255),(int)ofRandom(0,255));
        ofDrawRectangle(ofRandom(0,1280),ofRandom(0,720),ofRandom(10,200),ofRandom(10,200));
    }
}

Reproduce the example from the issue on Raspberry Pi 2 using of_v0.9.3_linuxarmv6l_release, then compare it with the reported Mac behavior. Start by tracing ofSetBackgroundAuto(false) from setup() into the frame rendering path; done means the background is not cleared between draw() calls on Raspberry Pi.