love.data.compress causes a segfault on macOS Big Sur (LOVE 11.5) about love HOT 9 CLOSED

Does this only happen on macOS 11 in particular, for you? I just tried running that code with love 11.5 on macOS 14 and didn't crash.

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Does this only happen on macOS 11 in particular, for you? I just tried running that code with love 11.5 on macOS 14 and didn't crash.

Yes. It works on Ventura and Sonoma, at the very least, but I know for a fact that Big Sur and Catalina (at least) have this problem.

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In that case I wonder if it's an Apple bug where app references to the system zlib library APIs aren't compatible with an older deployment target version when a newer SDK is used to compile, or something.

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I can add that the segfault trace looks like this (thanks to MacOS's really remarkably good error tracing):

Thread 22 Crashed:: @engine/save_manager.lua
0   ???                               000000000000000000 0 + 0
1   love2d.love                       0x00000001047b8e8d love::data::zlibCompressor::compress(love::data::Compressor::Format, char const*, unsigned long, int, unsigned long&) + 429
2   love2d.love                       0x000000010474dc16 love::data::compress(love::data::Compressor::Format, char const*, unsigned long, int) + 70

With the following error flags set:

Crashed Thread:        22  @engine/save_manager.lua

Exception Type:        EXC_BAD_ACCESS (SIGSEGV)
Exception Codes:       KERN_INVALID_ADDRESS at 0x0000000000000000
Exception Note:        EXC_CORPSE_NOTIFY

Termination Signal:    Segmentation fault: 11
Termination Reason:    Namespace SIGNAL, Code 0xb
Terminating Process:   exc handler [36532]

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Update: when compiling 11.5 from scratch on 11.7.10 (20G1427) and attempting to reproduce the program functions completely normally. So it appears to be yet another compiler bug.

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I wonder if this Xcode update fixes it: https://developer.apple.com/documentation/xcode-release-notes/xcode-15_1-release-notes#Linking

I can try uploading a rebuilt version of 11.5 using Xcode 15.2 later, if you want to try.

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I wonder if this Xcode update fixes it: https://developer.apple.com/documentation/xcode-release-notes/xcode-15_1-release-notes#Linking

I can try uploading a rebuilt version of 11.5 using Xcode 15.2 later, if you want to try.

Seems like the issue. I can't get to compiling LOVE today but if a build was made I can certainly report if the issue's been resolved.

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@slime73 I'm not sure if it was upgrading to Xcode 15.2, or building with MACOSX_DEPLOYMENT_TARGET=10.13 (I got a warning about 10.11 not being valid anymore), but I was able to build a version of LOVE that works correctly on Big Sur.

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I've updated the 11.5 macOS build in the releases section after recompiling with Xcode 15.2. That should fix it, but let me know if you still run into issues.

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