Cyberpunk 2077 Mac crash fix — stub libGameServicesGOG.dylib to fix SIGSEGV in SetRichPresence

cyberpunk2077_mac_fix.c

// Cyberpunk 2077 Mac — Crash on save load (SIGSEGV in SetRichPresence)
//
// Problem: Game crashes on any save load. GOG Galaxy not installed, so
// SetRichPresence passes a null string to syslog() -> segfault.
//
// Fix: Replace libGameServicesGOG.dylib with this no-op stub.
//
// Compile:
//   clang -dynamiclib -arch arm64 -o libGameServicesGOG.dylib cyberpunk2077_mac_fix.c \
//     -install_name @executable_path/../Frameworks/libGameServicesGOG.dylib
//
// Install:
//   cp "/Applications/Cyberpunk 2077/Cyberpunk2077.app/Contents/Frameworks/libGameServicesGOG.dylib" \
//      "/Applications/Cyberpunk 2077/Cyberpunk2077.app/Contents/Frameworks/libGameServicesGOG.dylib.bak"
//   cp libGameServicesGOG.dylib "/Applications/Cyberpunk 2077/Cyberpunk2077.app/Contents/Frameworks/"
//
// Restore:
//   cp "/Applications/Cyberpunk 2077/Cyberpunk2077.app/Contents/Frameworks/libGameServicesGOG.dylib.bak" \
//      "/Applications/Cyberpunk 2077/Cyberpunk2077.app/Contents/Frameworks/libGameServicesGOG.dylib"

#include <stddef.h>
#include <stdarg.h>

// C++ mangled gs:: namespace functions (must match original dylib)
void _ZN2gs8WriteLogEPKcz(const char* fmt, ...) {}
void _ZN2gs13SetAllocatorsEPFPvS0_mmEPFvPKvE(void* a, void* b) {}
void _ZN2gs4FreeEPKv(const void* p) {}
void* _ZN2gs7ReallocEPvmm(void* p, size_t a, size_t b) { return NULL; }

// C-linkage exports
void Initialize(void) {}
void Uninitialize(void) {}
void Update(void) {}
void SignIn(void) {}
void SetRichPresence(const char* a, void* b, void* c) {}
void SyncAchievement(void) {}
void SyncAchievementList(void) {}
void UnlockAchievement(void) {}
void SetNetworkState(int s) {}
void SetOverlayHandler(void* h) {}
void SetCommandLineHandler(void* h) {}
void SetLogger(void* l) {}
void RequestEncryptedAppTicket(void) {}
void OpenWebBrowser(const char* u) {}
const char* GetPlatformName(void) { return "stub"; }
const char* GetLanguageCodeName(void) { return "en"; }
const char* GetLibraryVersion(void) { return "0.0.0"; }
void VerifyDataIntegrity(void) {}
void CheckAdditionalContentStatus(void) {}
int IsPurchaseThroughAppEnabled(void) { return 0; }
int IsInstallThroughAppEnabled(void) { return 0; }
void RequestAdditionalContentPurchase(void) {}
void RequestAdditionalContentInstall(void) {}
void SetAddtionalContentInstallCallback(void* c) {}
void CloudSaveReady(void) {}
void FetchCloudSavedGameData(void) {}
void DeleteCloudSavedGameData(void) {}
void SaveDataToCloud(void) {}

Hi, thank you - this helped with the crashes! But it introduced another problem now: the game doesn't see the Phantom Liberty DLC, even though it's installed. Any idea how to fix that?