I'm building an app using libpd and OpenFrameworks for iOS using Xcode 7. If I archive and install the app using a Release scheme, the app will run fine on 32 bit devices but not on 64 bit devices (an installed debug archive will run fine on either) - you can read some of the details re the crash log here:

https://github.com/libpd/libpd/issues/144

The crash almost always occurs on lines that involve loading tilde objects, and I've found some possibly related info re Apple's 64 bit transition guide here:

http://stackoverflow.com/questions/19507456/sudzc-arc-version-objc-msgsend-call-causes-exc-bad-access-using-64-bit-archite

https://developer.apple.com/library/ios/documentation/General/Conceptual/CocoaTouch64BitGuide/ConvertingYourAppto64-Bit/ConvertingYourAppto64-Bit.html

In particular, I'm suspicious of the 'variadic function' issue, since the libpd code does contain variadic functions that appear to be used when tilde objects are loaded. What I know for sure is that as soon as I remove all tilde objects, I have no problems.

I'd be curious to know if anyone here has been able to successfully run a release archive using tilde objects on a 64 bit device? (i.e. Am I barking up the wrong tree or the right one?)

Needless to say, any other hints will be most welcome!

@RonHerrema said:

(i.e. Am I barking up the wrong tree or the right one?)

Try the pd-list if you didn't already done so.
More libpd users I think.
Cheers~