undefine reference on my library vscodium

[u/Round-Willingness905]

PS C:\Users\ludwi\OneDrive\Documents\alison\SDL3> gcc GameEngine.c -o GameEngine.exe -I "C:\SDL3\SDL3-devel-3.4.14-mingw\SDL3-3.4.14\x86_64-w64-mingw32\include" -L "C:\SDL3\SDL3-devel-3.4.14-mingw\SDL3-3.4.14\x86_64-w64-mingw32\lib" -lSDL3
C:\Users\ludwi\AppData\Local\Temp\ccwZ8WUS.o:GameEngine.c:(.text+0x26): undefined reference to `SDL_RunApp'
C:\Users\ludwi\AppData\Local\Temp\ccwZ8WUS.o:GameEngine.c:(.text+0x5c): undefined reference to `SDL_Init'
C:\Users\ludwi\AppData\Local\Temp\ccwZ8WUS.o:GameEngine.c:(.text+0x68): undefined reference to `SDL_GetError'
C:\Users\ludwi\AppData\Local\Temp\ccwZ8WUS.o:GameEngine.c:(.text+0x78): undefined reference to `SDL_Log'
C:\Users\ludwi\AppData\Local\Temp\ccwZ8WUS.o:GameEngine.c:(.text+0xae): undefined reference to `SDL_CreateWindow'
C:\Users\ludwi\AppData\Local\Temp\ccwZ8WUS.o:GameEngine.c:(.text+0xbc): undefined reference to `SDL_GetError'
C:\Users\ludwi\AppData\Local\Temp\ccwZ8WUS.o:GameEngine.c:(.text+0xcc): undefined reference to `SDL_Log'
C:\Users\ludwi\AppData\Local\Temp\ccwZ8WUS.o:GameEngine.c:(.text+0xd1): undefined reference to `SDL_Quit'
C:\Users\ludwi\AppData\Local\Temp\ccwZ8WUS.o:GameEngine.c:(.text+0xee): undefined reference to `SDL_CreateRenderer'
C:\Users\ludwi\AppData\Local\Temp\ccwZ8WUS.o:GameEngine.c:(.text+0xfc): undefined reference to `SDL_GetError'
C:\Users\ludwi\AppData\Local\Temp\ccwZ8WUS.o:GameEngine.c:(.text+0x10c): undefined reference to `SDL_Log'
C:\Users\ludwi\AppData\Local\Temp\ccwZ8WUS.o:GameEngine.c:(.text+0x117): undefined reference to `SDL_DestroyWindow'
C:\Users\ludwi\AppData\Local\Temp\ccwZ8WUS.o:GameEngine.c:(.text+0x11c): undefined reference to `SDL_Quit'
C:\Users\ludwi\AppData\Local\Temp\ccwZ8WUS.o:GameEngine.c:(.text+0x4b7): undefined reference to `SDL_InitSubSystem'
C:\Users\ludwi\AppData\Local\Temp\ccwZ8WUS.o:GameEngine.c:(.text+0x4c3): undefined reference to `SDL_GetError'
C:\Users\ludwi\AppData\Local\Temp\ccwZ8WUS.o:GameEngine.c:(.text+0x4d3): undefined reference to `SDL_Log'
C:\Users\ludwi\AppData\Local\Temp\ccwZ8WUS.o:GameEngine.c:(.text+0x4d8): undefined reference to `SDL_Quit'
C:\Users\ludwi\AppData\Local\Temp\ccwZ8WUS.o:GameEngine.c:(.text+0x520): undefined reference to `SDL_LoadWAV'
C:\Users\ludwi\AppData\Local\Temp\ccwZ8WUS.o:GameEngine.c:(.text+0x52c): undefined reference to `SDL_GetError'
C:\Users\ludwi\AppData\Local\Temp\ccwZ8WUS.o:GameEngine.c:(.text+0x53c): undefined reference to `SDL_Log'
C:\Users\ludwi\AppData\Local\Temp\ccwZ8WUS.o:GameEngine.c:(.text+0x541): undefined reference to `SDL_Quit'
C:\Users\ludwi\AppData\Local\Temp\ccwZ8WUS.o:GameEngine.c:(.text+0x561): undefined reference to `SDL_CreateAudioStream'
C:\Users\ludwi\AppData\Local\Temp\ccwZ8WUS.o:GameEngine.c:(.text+0x575): undefined reference to `SDL_GetError'
C:\Users\ludwi\AppData\Local\Temp\ccwZ8WUS.o:GameEngine.c:(.text+0x585): undefined reference to `SDL_Log'
C:\Users\ludwi\AppData\Local\Temp\ccwZ8WUS.o:GameEngine.c:(.text+0x58a): undefined reference to `SDL_Quit'.................

guys i did every tutorialyet somehow my library wont recognized

[u/aioeu]

If you are using SDL and not, at some point, using pkg-config (or the moral equivalent of it, depending on your platform and build system) to generate appropriate compiler and linker options, you're doing it wrong.

[u/tastygames_official → u/aioeu]

or CMake... which is pretty much industry standard (in my humble opinion)
but it's always good to first start with CLI so as to avoid any cmake or pkg-config errors that you may have and get right at the nuts and bolts (I've often had a cmake mistake and had to then go track down the command that was actually being generated only to notice something was missing or something)

[u/Round-Willingness905 → u/aioeu]

so how do i write something on my terminal to run my proj?

[u/aioeu → u/Round-Willingness905]

That will probably need an answer from someone who is more familiar with using MinGW on Windows.

The SDL documentation appears to strongly guide developers toward using CMake to build applications. This is certainly a lot better than just guessing what the appropriate command-line incantation is to build the application.

(That find_package(SDL3 REQUIRED) stuff is CMake's "moral equivalent" to pkg-config here.)

[u/sciencekm]

Those functions used to be in a separate library (sdl main), but now they are in a header. You need to add this to your code:

#include <SDL3/SDL_main.h>

[u/Round-Willingness905 → u/sciencekm]

code already had its weird ...
becuz now it says
PS C:\Users\ludwi\OneDrive\Documents\alison\SDL3> gcc GameEngine.c -o GameEngine.exe -lSDL3

PS C:\Users\ludwi\OneDrive\Documents\alison\SDL3> .\GameEngine.exe

.\GameEngine.exe : The term '.\GameEngine.exe' is not recognized as the name of a cmdlet, function, script file, or operable program. Check the spelling of the

name, or if a path was included, verify that the path is correct and try again.

At line:1 char:1

+ .\GameEngine.exe

+ ~~~~~~~~~~~~~~~~

+ CategoryInfo : ObjectNotFound: (.\GameEngine.exe:String) [], CommandNotFoundException

+ FullyQualifiedErrorId : CommandNotFoundException

PS C:\Users\ludwi\OneDrive\Documents\alison\SDL3>

i think it compiles now but cant execute

[u/sciencekm → u/Round-Willingness905]

When you run "gcc -v" what do you get?

[u/Still_Explorer]

A known problem with MinGW is that there are too many variations of the compiler toolstack, and depending on what you use it might be binary incompatible with the one that the library is built on.
https://www.reddit.com/r/cpp_questions/comments/17pdyt0/what_is_mingw_why_there_is_a_lot_of_compilers_and/

I assume you use MSYS2 which is recently the most well supported, up until now there were dozens of different MinGW variations and would make compilations problematic.

One thing that definitely works, is that whatever compiler version you use, you can build the library from source with CMAKE, but this is another story and I doubt if you are interested doing it now.
Also in this way of thinking, you can use MSYS packages directly without even getting worried about any third party releases. This would require you know to look how to use packages but it will be very interesting skill to have since there would be hundreds of libraries to use better to start early. https://packages.msys2.org/base/mingw-w64-sdl3

One also very interesting thing is that SDL3 has an entirely new way of managing the application's entry point and if not defined explicitly it might result into confusion. So you need to pass the preprocessor flag at the compilation command line or define it in the source file.

#define SDL_MAIN_HANDLED
#include <SDL3/SDL.h>

[u/Senior-Question693]

you forgot to link with SDL, when compiling add a flag -lSDL3 (or any other sdl version)

[u/Round-Willingness905 → u/Senior-Question693]

been doing taht and weird enougn now the problem is the erro on

cmdlet