I have a desktop application which I developed with the Qt framework. In terms of backward compatibility on OSX I have a problem: The app is compiled on 10.15 and works fine on 10.15 and 10.14. This binary also launches with 10.13 but at some point throws an errors about missing symbols (__chkstk_darwin ) in libSystem.B.dylib:
Process: soundjack [36008]
Path: /Applications/SJC200731.app/Contents/MacOS/soundjack
Identifier: com.yourcompany.soundjack
Version: 0
Code Type: X86-64 (Native)
Parent Process: ??? [1]
Responsible: soundjack [36008]
User ID: 501
Date/Time: 2020-08-03 14:27:37.091 -0400
OS Version: Mac OS X 10.13.6 (17G12034)
Report Version: 12
Anonymous UUID: B29E683E-6761-8C04-33C0-BC84BEE092BE
Time Awake Since Boot: 610000 seconds
System Integrity Protection: enabled
Crashed Thread: 3
Exception Type: EXC_CRASH (SIGABRT)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Exception Note: EXC_CORPSE_NOTIFY
Termination Reason: DYLD, [0x4] Symbol missing
Dyld Error Message:
Symbol not found: ____chkstk_darwin
Referenced from: /Applications/SJC200731.app/Contents/MacOS/soundjack
Expected in: /usr/lib/libSystem.B.dylib
Thread 0:: Dispatch queue: com.apple.main-thread
0 libsystem_kernel.dylib 0x00007fff6d3f11fa mach_msg_trap + 10
1 libsystem_kernel.dylib 0x00007fff6d3f0714 mach_msg + 60
2 com.apple.CoreFoundation 0x00007fff452c9f65 __CFRunLoopServiceMachPort + 341
3 com.apple.CoreFoundation 0x00007fff452c92b7 __CFRunLoopRun + 1783
4 com.apple.CoreFoundation 0x00007fff452c8927 CFRunLoopRunSpecific + 487
5 com.apple.HIToolbox 0x00007fff445a8d96 RunCurrentEventLoopInMode + 286
6 com.apple.HIToolbox 0x00007fff445a8b06 ReceiveNextEventCommon + 613
7 com.apple.HIToolbox 0x00007fff445a8884 _BlockUntilNextEventMatchingListInModeWithFilter + 64
8 com.apple.AppKit 0x00007fff42855a3b _DPSNextEvent + 2085
9 com.apple.AppKit 0x00007fff42febe34 -[NSApplication(NSEvent) _nextEventMatchingEventMask:untilDate:inMode:dequeue:] + 3044
10 com.apple.AppKit 0x00007fff4284a84d -[NSApplication run] + 764
11 libqcocoa.dylib 0x00000001100ab5d3 0x110073000 + 230867
12 org.qt-project.QtCore 0x000000010e2b7a7f QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) + 431
13 org.qt-project.QtCore 0x000000010e2bc002 QCoreApplication::exec() + 130
14 com.yourcompany.soundjack 0x000000010cf54875 main + 3141
15 libdyld.dylib 0x00007fff6d2aa015 start + 1
Thread 1:
0 libsystem_kernel.dylib 0x00007fff6d3fbbea kevent + 10
1 com.yourcompany.soundjack 0x000000010cf68ebe 0x10cf4d000 + 114366
2 com.yourcompany.soundjack 0x000000010cf689e5 0x10cf4d000 + 113125
3 com.yourcompany.soundjack 0x000000010cf68591 0x10cf4d000 + 112017
4 com.yourcompany.soundjack 0x000000010cf5b351 boost::asio::io_context::run() + 65
5 com.yourcompany.soundjack 0x000000010cfc8f28 0x10cf4d000 + 507688
6 libsystem_pthread.dylib 0x00007fff6d5c2661 _pthread_body + 340
7 libsystem_pthread.dylib 0x00007fff6d5c250d _pthread_start + 377
8 libsystem_pthread.dylib 0x00007fff6d5c1bf9 thread_start + 13
Thread 2:: com.apple.CFSocket.private
0 libsystem_kernel.dylib 0x00007fff6d3facf2 __select + 10
1 com.apple.CoreFoundation 0x00007fff45303a4b __CFSocketManager + 635
2 libsystem_pthread.dylib 0x00007fff6d5c2661 _pthread_body + 340
3 libsystem_pthread.dylib 0x00007fff6d5c250d _pthread_start + 377
4 libsystem_pthread.dylib 0x00007fff6d5c1bf9 thread_start + 13
Thread 3 Crashed:
0 dyld 0x000000010d4c2256 __abort_with_payload + 10
1 dyld 0x000000010d4c1bc8 abort_with_payload_wrapper_internal + 89
2 dyld 0x000000010d4c1bf5 abort_with_payload + 9
3 dyld 0x000000010d495482 dyld::halt(char const*) + 354
4 dyld 0x000000010d4955a9 dyld::fastBindLazySymbol(ImageLoader**, unsigned long) + 170
5 libdyld.dylib 0x00007fff6d2aa292 dyld_stub_binder + 282
6 ??? 0x000000010d010000 0 + 4513136640
7 com.yourcompany.soundjack 0x000000010cf74bcb sender::doCompression() + 2347
8 com.yourcompany.soundjack 0x000000010cf738d4 sender::sendItThreadFunction() + 564
9 com.yourcompany.soundjack 0x000000010cfc8f28 0x10cf4d000 + 507688
10 libsystem_pthread.dylib 0x00007fff6d5c2661 _pthread_body + 340
11 libsystem_pthread.dylib 0x00007fff6d5c250d _pthread_start + 377
12 libsystem_pthread.dylib 0x00007fff6d5c1bf9 thread_start + 13
Can anyone explain me how to approach this issue ?
Thanks in advance, best
Alex
QMAKE_MACOSX_DEPLOYMENT_TARGET=10.13 has to be part of the PRO-File. This was already the case which is why I was confused. Eventually we could figure that there was an additional lib involved which was not compiled for 10.13 and resulted in the actual issue. After compilation for 10.13 and using this lib the problem was resolved.