0.4 macOS build crashes on startup

Callstack:

Termination Signal:    Segmentation fault: 11
Termination Reason:    Namespace SIGNAL, Code 0xb
Terminating Process:   exc handler [75011]

VM Regions Near 0x3b0:
--> 
    __TEXT                      10dcb0000-10e494000    [ 8080K] r-x/r-x SM=COW  /Users/*

Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0   libGL.dylib                   	0x00007fff6cb42bad glGetString + 15
1   armagetronad                  	0x000000010e23b0e6 lowlevel_sr_InitDisplay() + 3238 (rScreen.cpp:971)
2   armagetronad                  	0x000000010e239f0f sr_InitDisplay() + 303 (rScreen.cpp:1507)
3   armagetronad                  	0x000000010dd35f67 main + 3335 (gArmagetron.cpp:905)
4   libdyld.dylib                 	0x00007fff203e0621 start + 1

It often visibly tries to initialize different screen setups before crashing.