Hi Mac developers,
In my quest to compile all fg related packages for 64 bit architecture
(x86_64) I finally decided to compile the mac fg start up GUI
(FlightGear) for 64 bits. The binary does not work, it starts up and
exits with
2010-12-08 00:20:50.408 FlightGear[29071:903]
AircraftOptions#awakeFromNib: OSX::OCDataConvException: Cannot register
the given selector 'applicationWillTerminate:' as an informal protocol
method of type 'v...@0:8...@16', because another informal protocol method is
already registered with the same signature (but with another type,
'v...@0:4...@8'. Please rename your selector.
/System/Library/Frameworks/RubyCocoa.framework/Resources/ruby/osx/objc/oc_wrapper.rb:50:in
`ocm_send'
/System/Library/Frameworks/RubyCocoa.framework/Resources/ruby/osx/objc/oc_wrapper.rb:50:in
`method_missing'
/Users/jari/projects/fg/macbundle/FlightGear.app/Contents/Resources/SearchableOptions.rb:41:in
`awakeFromNib'
/Users/jari/projects/fg/macbundle/FlightGear.app/Contents/Resources/SearchableOptions.rb:40:in
`each'
/Users/jari/projects/fg/macbundle/FlightGear.app/Contents/Resources/SearchableOptions.rb:40:in
`awakeFromNib'
/Users/jari/projects/fg/macbundle/FlightGear.app/Contents/Resources/AircraftOptions.rb:37:in
`awakeFromNib'
/Users/jari/projects/fg/macbundle/FlightGear.app/Contents/Resources/rb_main.rb:38:in
`NSApplicationMain'
/Users/jari/projects/fg/macbundle/FlightGear.app/Contents/Resources/rb_main.rb:38
A 32bit FlightGear will work without any message. The issue is trivially
removed by renaming methods named applicationWillTerminate in a few
places (see the attached patch for details).
I have search the Net for an explanation for the problem with no success.
Can some one apply the patch to repository
https://macflightgear.svn.sourceforge.net/svnroot/macflightgear/trunk/FlightGearOSX
? It resolves the 64bit problem and does not affect i386 binaries.
Another way to resolve the issue is simply to continue compile the
startup GUI for 32bit (i386) architecture rather than x86_64. But where
is the beauty in that?
Cheers,
Jari
Index: FavoriteOptions.rb
===================================================================
--- FavoriteOptions.rb (revision 284)
+++ FavoriteOptions.rb (arbetskopia)
@@ -88,7 +88,7 @@
end
end
- def applicationWillTerminate(notification=nil)
+ def theApplicationWillTerminate(notification=nil)
@dictionary.save()
super()
end
Index: FlightGearController.rb
===================================================================
--- FlightGearController.rb (revision 284)
+++ FlightGearController.rb (arbetskopia)
@@ -104,7 +104,7 @@
@path = NSBundle.mainBundle.resourcePath.to_s
notifier = OSX::NSNotificationCenter.defaultCenter
- {'applicationWillTerminate:' =>
OSX::NSApplicationWillTerminateNotification,
+ {'theApplicationWillTerminate:' =>
OSX::NSApplicationWillTerminateNotification,
'windowDidBecomeKeyNotification:' =>
OSX::NSWindowDidBecomeKeyNotification,
'reloadAircraft:' => 'FGReloadAircraftNotification',
'selectAircraft:' => 'FGAircraftDidSelectNotification',
@@ -247,7 +247,7 @@
NSNotificationCenter.defaultCenter.removeObserver_name_object(self,
NSWindowDidBecomeKeyNotification, nil)
end
- def applicationWillTerminate(notification=nil)
+ def theApplicationWillTerminate(notification=nil)
# save all the instances of Option
ObjectSpace.each_object(Option) {|option| option.update(); option.save()}
Preferences.setValue('advanced', @advanced.state.to_i)
Index: SearchableOptions.rb
===================================================================
--- SearchableOptions.rb (revision 284)
+++ SearchableOptions.rb (arbetskopia)
@@ -35,7 +35,7 @@
def awakeFromNib()
@table.setDataSource(@dictionary)
notifier = OSX::NSNotificationCenter.defaultCenter
- {'applicationWillTerminate:' =>
OSX::NSApplicationWillTerminateNotification,
+ {'theApplicationWillTerminate:' =>
OSX::NSApplicationWillTerminateNotification,
'synchronize:' => OSX::NSWindowDidBecomeKeyNotification
}.each do |selector, name|
notifier.addObserver_selector_name_object(self, selector, name, nil)
@@ -69,7 +69,7 @@
@table.reloadData()
end
- def applicationWillTerminate(notification=nil)
+ def theApplicationWillTerminate(notification=nil)
NSNotificationCenter.defaultCenter.removeObserver(self)
end
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