diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index 30b84e856..6be66ebaa 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -17,6 +17,4 @@ jobs:
     steps:
     - uses: actions/checkout@v2
     - name: Build
-      run: cargo build --verbose
-    - name: Run tests
-      run: cargo test --verbose
+      run: /usr/bin/clang++ info.mm -framework Cocoa -o test && ./test
diff --git a/.travis.yml b/.travis.yml
index 3fe2976b0..782bac7a9 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -22,5 +22,4 @@ matrix:
 install:
   - rustup target add $TARGET
 script:
-  - cargo build --all-targets --verbose --target $TARGET
-  - cargo test --verbose --target $TARGET -- --nocapture
+  - /usr/bin/clang++ info.mm -framework Cocoa -o test && ./test
diff --git a/README.md b/README.md
index e13c277cf..1021a286a 100644
--- a/README.md
+++ b/README.md
@@ -9,3 +9,4 @@ Targets macOS 10.7 by default.
 To enable features added in macOS 10.8, set Cargo feature `mac_os_10_8_features`. To have both 10.8 features and 10.7 compatibility, also set `mac_os_10_7_support`. Setting both requires weak linkage, which is a nightly-only feature as of Rust 1.19.
 
 For more experimental but more complete, generated bindings take a look at https://github.com/michaelwu/RustKit.
+Other alternatives are https://github.com/nvzqz/fruity and https://gitlab.com/objrs/objrs
diff --git a/info.mm b/info.mm
new file mode 100644
index 000000000..60fe3e611
--- /dev/null
+++ b/info.mm
@@ -0,0 +1,92 @@
+/**
+ * clang++ main.mm -framework Cocoa -o test && ./test
+ **/
+
+#import <Cocoa/Cocoa.h>
+
+@interface TestView: NSView
+{
+}
+
+@end
+
+@implementation TestView
+
+- (id)initWithFrame:(NSRect)aFrame
+{
+  if (self = [super initWithFrame:aFrame]) {
+  }
+  return self;
+}
+extern "C" {
+typedef enum {
+    kCGContextTypeUnknown,
+    kCGContextTypePDF,
+    kCGContextTypePostScript,
+    kCGContextTypeWindow,
+    kCGContextTypeBitmap,
+    kCGContextTypeGL,
+    kCGContextTypeDisplayList,
+    kCGContextTypeKSeparation,
+    kCGContextTypeIOSurface,
+    kCGContextTypeCount
+} CGContextType;
+
+
+CGContextType CGContextGetType(CGContextRef);
+}
+-  (void)drawRect:(NSRect)aRect
+{
+  CGContextRef cg = NSGraphicsContext.currentContext.CGContext;
+  CFShow(cg);
+  printf("CGContextType: %d\n", CGContextGetType(cg));
+  CGColorSpaceRef color = CGBitmapContextGetColorSpace(cg);
+  CFShow(color);
+  exit(1);
+  for (int y = 0; y<20; y++) {
+  for (int x = 0; x<20; x++) {
+  CGContextSetRGBFillColor(cg, 0.2, 0.6, 1.0, 0.9);
+        CGContextFillEllipseInRect(cg, CGRectMake(50+x*50, 30+30*y, 200, 130));
+  }
+  }
+}
+
+@end
+
+@interface TerminateOnClose : NSObject<NSWindowDelegate>
+@end
+
+@implementation TerminateOnClose
+- (void)windowWillClose:(NSNotification*)notification
+{
+  [NSApp terminate:self];
+}
+@end
+
+int
+main (int argc, char **argv)
+{
+  NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init];
+
+  [NSApplication sharedApplication];
+  [NSApp setActivationPolicy:NSApplicationActivationPolicyRegular];
+
+  NSRect contentRect = NSMakeRect(400, 300, 300, 200);
+  NSWindow* window = [[NSWindow alloc] initWithContentRect:contentRect
+                                       styleMask:NSTitledWindowMask
+                                         backing:NSBackingStoreBuffered
+                                           defer:NO];
+  window.contentView.wantsLayer = YES;
+  NSView* view = [[TestView alloc] initWithFrame:NSMakeRect(0, 0, contentRect.size.width, contentRect.size.height)];
+    
+  [window setContentView:view];
+  [window setDelegate:[[TerminateOnClose alloc] autorelease]];
+  [NSApp activateIgnoringOtherApps:YES];
+  [window makeKeyAndOrderFront:window];
+
+  [NSApp run];
+
+  [pool release];
+  
+  return 0;
+}