[DO-981] qt package (!15)

Co-authored-by: aleksandr.vodyanov <aleksandr.vodyanov@avroid.tech>
Reviewed-on: https://git.avroid.tech/Conan/conan_build/pulls/15

recipes/opengl/all/test_package/osx.mm

@@ -0,0 +1,31 @@
+#include "TargetConditionals.h"
+
+#if TARGET_OS_TV || TARGET_OS_WATCH || TARGET_OS_IPHONE
+#else
+#import <Foundation/Foundation.h>
+#import <AppKit/AppKit.h>
+#endif
+
+bool init_context()
+{
+#if TARGET_OS_TV || TARGET_OS_WATCH || TARGET_OS_IPHONE
+    return true;
+#else
+    NSOpenGLPixelFormatAttribute pixelFormatAttributes[] =
+    {
+        NSOpenGLPFAColorSize, 24,
+        NSOpenGLPFAAlphaSize, 8,
+        NSOpenGLPFADoubleBuffer,
+        0
+    };
+    NSOpenGLPixelFormat *pixelFormat = [[NSOpenGLPixelFormat alloc] initWithAttributes:pixelFormatAttributes];
+    if (!pixelFormat)
+        return false;
+
+    NSOpenGLContext *context = [[NSOpenGLContext alloc] initWithFormat:pixelFormat shareContext:nil];
+    if (!context)
+        return false;
+    [context makeCurrentContext];
+    return true;
+#endif
+}