I tryed rebuilding SDL2 wich worked. But when i try to build the engine i get stuff like this:
[71/72] Link (lld) CrashReportClient-Linux-Development
ld.lld: error: /home/slasher006/UnrealEngine/Engine/Source/ThirdParty/SDL2/SDL-gui-backend/lib/Linux/x86_64-unknown-linux-gnu/libSDL2.a(SDL_dynapi.c.o): contains a compressed section, but zlib is not available
ld.lld: error: /home/slasher006/UnrealEngine/Engine/Source/ThirdParty/SDL2/SDL-gui-backend/lib/Linux/x86_64-unknown-linux-gnu/libSDL2.a(SDL_dynapi.c.o): contains a compressed section, but zlib is not available
ld.lld: error: /home/slasher006/UnrealEngine/Engine/Source/ThirdParty/SDL2/SDL-gui-backend/lib/Linux/x86_64-unknown-linux-gnu/libSDL2.a(SDL_dynapi.c.o): contains a compressed section, but zlib is not available
ld.lld: error: /home/slasher006/UnrealEngine/Engine/Source/ThirdParty/SDL2/SDL-gui-backend/lib/Linux/x86_64-unknown-linux-gnu/libSDL2.a(SDL_dynapi.c.o): contains a compressed section, but zlib is not available
ld.lld: error: /home/slasher006/UnrealEngine/Engine/Source/ThirdParty/SDL2/SDL-gui-backend/lib/Linux/x86_64-unknown-linux-gnu/libSDL2.a(SDL_dynapi.c.o): contains a compressed section, but zlib is not available
ld.lld: error: /home/slasher006/UnrealEngine/Engine/Source/ThirdParty/SDL2/SDL-gui-backend/lib/Linux/x86_64-unknown-linux-gnu/libSDL2.a(SDL_dynapi.c.o): contains a compressed section, but zlib is not available
ld.lld: error: /home/slasher006/UnrealEngine/Engine/Source/ThirdParty/SDL2/SDL-gui-backend/lib/Linux/x86_64-unknown-linux-gnu/libSDL2.a(SDL_error.c.o): contains a compressed section, but zlib is not available
ld.lld: error: /home/slasher006/UnrealEngine/Engine/Source/ThirdParty/SDL2/SDL-gui-backend/lib/Linux/x86_64-unknown-linux-gnu/libSDL2.a(SDL_error.c.o): contains a compressed section, but zlib is not available
ld.lld: error: /home/slasher006/UnrealEngine/Engine/Source/ThirdParty/SDL2/SDL-gui-backend/lib/Linux/x86_64-unknown-linux-gnu/libSDL2.a(SDL_error.c.o): contains a compressed section, but zlib is not available
ld.lld: error: /home/slasher006/UnrealEngine/Engine/Source/ThirdParty/SDL2/SDL-gui-backend/lib/Linux/x86_64-unknown-linux-gnu/libSDL2.a(SDL_error.c.o): contains a compressed section, but zlib is not available
ld.lld: error: /home/slasher006/UnrealEngine/Engine/Source/ThirdParty/SDL2/SDL-gui-backend/lib/Linux/x86_64-unknown-linux-gnu/libSDL2.a(SDL_error.c.o): contains a compressed section, but zlib is not available
ld.lld: error: /home/slasher006/UnrealEngine/Engine/Source/ThirdParty/SDL2/SDL-gui-backend/lib/Linux/x86_64-unknown-linux-gnu/libSDL2.a(SDL_error.c.o): contains a compressed section, but zlib is not available
ld.lld: error: /home/slasher006/UnrealEngine/Engine/Source/ThirdParty/SDL2/SDL-gui-backend/lib/Linux/x86_64-unknown-linux-gnu/libSDL2.a(SDL_log.c.o): contains a compressed section, but zlib is not available
ld.lld: error: /home/slasher006/UnrealEngine/Engine/Source/ThirdParty/SDL2/SDL-gui-backend/lib/Linux/x86_64-unknown-linux-gnu/libSDL2.a(SDL_log.c.o): contains a compressed section, but zlib is not available
ld.lld: error: /home/slasher006/UnrealEngine/Engine/Source/ThirdParty/SDL2/SDL-gui-backend/lib/Linux/x86_64-unknown-linux-gnu/libSDL2.a(SDL_log.c.o): contains a compressed section, but zlib is not available
ld.lld: error: /home/slasher006/UnrealEngine/Engine/Source/ThirdParty/SDL2/SDL-gui-backend/lib/Linux/x86_64-unknown-linux-gnu/libSDL2.a(SDL_log.c.o): contains a compressed section, but zlib is not available
ld.lld: error: /home/slasher006/UnrealEngine/Engine/Source/ThirdParty/SDL2/SDL-gui-backend/lib/Linux/x86_64-unknown-linux-gnu/libSDL2.a(SDL_log.c.o): contains a compressed section, but zlib is not available
ld.lld: error: /home/slasher006/UnrealEngine/Engine/Source/ThirdParty/SDL2/SDL-gui-backend/lib/Linux/x86_64-unknown-linux-gnu/libSDL2.a(SDL_log.c.o): contains a compressed section, but zlib is not available
ld.lld: error: /home/slasher006/UnrealEngine/Engine/Source/ThirdParty/SDL2/SDL-gui-backend/lib/Linux/x86_64-unknown-linux-gnu/libSDL2.a(SDL.c.o): contains a compressed section, but zlib is not available
ld.lld: error: /home/slasher006/UnrealEngine/Engine/Source/ThirdParty/SDL2/SDL-gui-backend/lib/Linux/x86_64-unknown-linux-gnu/libSDL2.a(SDL.c.o): contains a compressed section, but zlib is not available
ld.lld: error: too many errors emitted, stopping now (use -error-limit=0 to see all errors)
clang++: error: linker command failed with exit code 1 (use -v to see invocation)
make: *** [Makefile:308: CrashReportClient] Fehler 5
zlib is installed i checked. Am i missing something here?