improved update checks

Application/Application/PrefsWindowController.m

@@ -367,7 +367,7 @@ bail:
         case Update_NotSupported:
             
             //dbg msg
-            os_log_debug(logHandle, "update available, but not for this version of macOS");
+            os_log_debug(logHandle, "update available, but not for this version of macOS.");
             
             //set label
             self.updateLabel.stringValue = [NSString stringWithFormat:@"Update available, but isn't supported on macOS %ld.%ld", NSProcessInfo.processInfo.operatingSystemVersion.majorVersion, NSProcessInfo.processInfo.operatingSystemVersion.minorVersion];

Shared/Utilities.m

@@ -969,33 +969,48 @@ bail:
     return icon;
 }
 
-//wait until a window is non nil
-// then make it modal
+//wait till window non-nil
+// then make that window modal
 void makeModal(NSWindowController* windowController)
 {
-    //wait up to 1 second window to be non-nil
-    // then make modal
+    //window
+    __block NSWindow* window = nil;
+    
+    //wait till non-nil
+    // then make window modal
     for(int i=0; i<20; i++)
     {
-        //can make it modal once we have a window
-        if(nil != windowController.window)
-        {
-            //make modal on main thread
-            dispatch_sync(dispatch_get_main_queue(), ^{
-                
-                //modal
-                [[NSApplication sharedApplication] runModalForWindow:windowController.window];
-                
-            });
+        //grab window
+        dispatch_sync(dispatch_get_main_queue(), ^{
+         
+            //grab
+            window = windowController.window;
             
-            //all done
-            break;
+        });
+                      
+        //nil?
+        // nap
+        if(nil == window)
+        {
+            //nap
+            [NSThread sleepForTimeInterval:0.05f];
+            
+            //next
+            continue;
         }
         
-        //nap
-        [NSThread sleepForTimeInterval:0.05f];
+        //have window?
+        // make it modal
+        dispatch_sync(dispatch_get_main_queue(), ^{
+            
+            //modal
+            [[NSApplication sharedApplication] runModalForWindow:windowController.window];
+            
+        });
         
-    }//until 1 second
+        //done
+        break;
+    }
     
     return;
 }