From 76b82d92fcd02303c621557ca2df0a739ef3ba78 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jesu=CC=81s=20A=2E=20A=CC=81lvarez?= <zydeco@namedfork.net>
Date: Mon, 6 Jun 2016 20:13:02 +0200
Subject: [PATCH] don't try to handle physical keyboard events on iOS <9

---
 Mini vMac/MNVMApplication.m | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/Mini vMac/MNVMApplication.m b/Mini vMac/MNVMApplication.m
index ec58736..82756d3 100644
--- a/Mini vMac/MNVMApplication.m	
+++ b/Mini vMac/MNVMApplication.m	
@@ -101,7 +101,16 @@ static int8_t usb_to_adb_scancode[] = {
 
 - (void)handleKeyUIEvent:(UIEvent *)event {
     [super handleKeyUIEvent:event];
-    if ([event isKindOfClass:keyboardEventClass]) {
+    static dispatch_once_t onceToken;
+    static BOOL handleKeyboardEvents = YES;
+    dispatch_once(&onceToken, ^{
+        if ([NSProcessInfo instancesRespondToSelector:@selector(operatingSystemVersion)]) {
+            handleKeyboardEvents = [NSProcessInfo processInfo].operatingSystemVersion.majorVersion >= 9;
+        } else {
+            handleKeyboardEvents = NO;
+        }
+    });
+    if ([event isKindOfClass:keyboardEventClass] && handleKeyboardEvents) {
         [self handleKeyboardEvent:(UIPhysicalKeyboardEvent*)event];
     }
 }