Bitcode for iOS ?

k.gaitanis

I have an app for iOS distributed via the AppStore. I would like to benefit from the advantages of including bitcode in my bundle. Is that possible ? Currently when I try to compile my app with Xcode and bitcode enabled I get the following error :

ld: -u and -bitcode_bundle (Xcode setting ENABLE_BITCODE=YES) cannot be used together

Is this Qt related or am I doing something wrong?

SGaist

Hi,

What version of Qt are you using ?

k.gaitanis

@SGaist Qt 5.6 installed using the online installer

SGaist

From what I found, currently bitcode is disabled to support deployment target under iOS 6.0

k.gaitanis

And if we only want to support iOS 8.1 and higher? Would it be possible to enable it?

SGaist

You'll have to modify and recompile qmake for that.

k.gaitanis

Modify what in qmake?

SGaist

Take a look at pbuilder_pbx.cpp around line 1409

k.gaitanis

Found this at line 1425 of qtbase-5.6.0/qmake/generators/mac/pbuilder_pbx.cpp:

        // Bitcode is only supported with a deployment target >= iOS 6.0.
        // Disable it for now, and consider switching it on when later
        // bumping the deployment target.
        settings.insert("ENABLE_BITCODE", "NO");
        settings.insert("GCC_GENERATE_DEBUGGING_SYMBOLS", as_release ? "NO" : "YES");

This seems like it would solve my problem. It also seems to answer to my other post concerning DSym files (iOS: DSym not uploaded to the AppStore).

I don't have time to test right now, but I'll definitively give it a try soon and report back.

Thanks SGaist