Symbol not found: _objc_alloc_init

Issue details

After updating to LibGDX 1.9.15-SNAPSHOT, the app crashes on iOS < 13 with this error:

dyld: lazy symbol binding failed: Symbol not found: _objc_alloc_init
  Referenced from: /Users/cellcrowd/Library/Developer/CoreSimulator/Devices/D387FB2F-A92D-44F9-A7DB-D3FCB8AAF3D1/data/Containers/Bundle/Application/EE9AFCF3-4FF3-4F64-91D7-08387A843DC3/IOSLauncher.app/IOSLauncher
  Expected in: /Library/Developer/CoreSimulator/Profiles/Runtimes/iOS 12.0.simruntime/Contents/Resources/RuntimeRoot/System/Library/Frameworks/Foundation.framework/Foundation

dyld: Symbol not found: _objc_alloc_init
  Referenced from: /Users/cellcrowd/Library/Developer/CoreSimulator/Devices/D387FB2F-A92D-44F9-A7DB-D3FCB8AAF3D1/data/Containers/Bundle/Application/EE9AFCF3-4FF3-4F64-91D7-08387A843DC3/IOSLauncher.app/IOSLauncher
  Expected in: /Library/Developer/CoreSimulator/Profiles/Runtimes/iOS 12.0.simruntime/Contents/Resources/RuntimeRoot/System/Library/Frameworks/Foundation.framework/Foundation

Reproduction steps/code

Updated to LibGDX 1.9.15-SNAPSHOT from LibGDX 1.9.13 (=no crashes) Cleaned project, cleared MobiVM and IntelliJ caches

Version of LibGDX and/or relevant dependencies

LibGDX 1.9.15-SNAPSHOT App crashes with given error on iOS < 13. Works on iOS >= 13

LibGDX 1.9.14 Compiling fails with duplicate symbol errors which has been reported and identified as a regression at https://github.com/libgdx/libgdx/issues/6402

LibGDX 1.9.13 Works on all iOS versions

All of the above using: MobiVM 2.3.12 IntelliJ 2020.2.4 (community edition) XCode 12.4

Several Firebase frameworks are added: https://github.com/dkimitsa/robovm-robopods/issues/8

Please select the affected platforms

• Android
• iOS
• HTML/GWT
• Windows
• Linux
• MacOS

[Tom-Ski]

@obigu this issue was that new xcode is ignoring that flag. When building with xcodebuild to build the audio backend it was overriding it to latest for the system, 14.2. jnigen was fine when i looked at it, (it does not use xcodebuild to generate natives), and no warnings for versions in logs

[obigu]

@cellcrowd Ok, good news, feel free to close the issue, I’ll keep banging my head against the wall to try to understand what’s wrong with my env.

I think the culprit has to do with the fact that we have migrated to gdx-jnigen to build natives and -miphoneos-version-min was being set to 6 instead of 8 which was causing problems. (https://github.com/libgdx/gdx-jnigen/blob/f9be183adefb5fe9c8917a1b83bc7f9cc8961200/gdx-jnigen/src/main/resources/com/badlogic/gdx/jnigen/resources/scripts/build-ios.xml.template#L87)

@Tom-Ski Thanks for the fix.