Hello Martin,
Thank you for all your good work on keeping darktable available on computers with older Mac OS.
I am able to run darktable 5.2.0 on an MacBook Pro of early 2015 with macOs Catalina.
Thanks to your work I was able to upgrade and use darktable several times (4.6, 4.8, 5.2) although the official version of darktable is no longer supported for Catalina. Every time I use the …_x86_64.dmg build without any problems.
Last weekend I was trying to upgrade to 5.4.1 using your latest build. I wanted to experiment with the new AgX module which became available with darktable 5.4. Unfortunately when I started darktable I received an error message. When I tried 5.4.0 or the latest build on this thread, it fails also.
I copied the errormessage below. Is it possible that it can be fixed? Thank you very much in advance.
Greetings from Pieter Horjus
Process: darktable [1871]
Path: /Applications/darktable.app/Contents/MacOS/darktable
Identifier: org.darktable
Version: 5.4.0 (5.4.0.117)
Code Type: X86-64 (Native)
Parent Process: ??? [1]
Responsible: darktable [1871]
User ID: 501
Date/Time: 2026-02-08 18:17:39.919 +0100
OS Version: Mac OS X 10.15.7 (19H2026)
Report Version: 12
Anonymous UUID: DFADE7AB-17C3-24FC-BE84-F776F0A17FD8
Time Awake Since Boot: 1800 seconds
System Integrity Protection: enabled
Crashed Thread: 0
Exception Type: EXC_CRASH (SIGABRT)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Exception Note: EXC_CORPSE_NOTIFY
Termination Reason: DYLD, [0x4] Symbol missing
Application Specific Information:
dyld: launch, loading dependent libraries
Dyld Error Message:
Symbol not found: __ZNSt3__113basic_filebufIcNS_11char_traitsIcEEE4openEPKcj
Referenced from: /Applications/darktable.app/Contents/MacOS/…/Resources/lib/libheif.1.dylib (which was built for Mac OS X 14.0)
Expected in: /usr/lib/libc++.1.dylib
Binary Images:
0x10b0d6000 - 0x10b0e5ff3 +org.darktable (5.4.0 - 5.4.0.117) <9BC1D5CB-39CB-3CA5-A35E-8AA36B7593F4> /Applications/darktable.app/Contents/MacOS/darktable
0x10b0f1000 - 0x10b554ff7 +libdarktable.dylib (0) <8E3CB37A-B88E-3632-AE4D-48BF85EA715B> /Applications/darktable.app/Contents/Resources/lib/darktable/libdarktable.dylib
0x10b74b000 - 0x10b7e2ff7 +libomp.dylib (0) <4A68758C-97C5-30BB-8B99-CF0A233385C0> /Applications/darktable.app/
etcetera