Fix https://bugzilla.libsdl.org/show_bug.cgi?id=4877#c2 loadNibNamed:owner:topLevelObjects is available on 10.8 and newer. There is an issue report here about an app failing to function on 10.7 and earlier: https://discourse.libsdl.org/t/28179
diff --git a/src/video/cocoa/SDL_cocoaevents.m b/src/video/cocoa/SDL_cocoaevents.m
index 8aec000..43f4392 100644
--- a/src/video/cocoa/SDL_cocoaevents.m
+++ b/src/video/cocoa/SDL_cocoaevents.m
@@ -33,6 +33,9 @@
#ifndef kIOPMAssertPreventUserIdleDisplaySleep
#define kIOPMAssertPreventUserIdleDisplaySleep kIOPMAssertionTypePreventUserIdleDisplaySleep
#endif
+#ifndef NSAppKitVersionNumber10_8
+#define NSAppKitVersionNumber10_8 1187
+#endif
@interface SDLApplication : NSApplication
@@ -306,7 +309,10 @@ LoadMainMenuNibIfAvailable(void)
NSDictionary *infoDict;
NSString *mainNibFileName;
bool success = false;
-
+
+ if (floor(NSAppKitVersionNumber) < NSAppKitVersionNumber10_8) {
+ return false;
+ }
infoDict = [[NSBundle mainBundle] infoDictionary];
if (infoDict) {
mainNibFileName = [infoDict valueForKey:@"NSMainNibFile"];