Error: Cannot find -lSDL2

jsulm

@ajcdev said in Error: Cannot find -lSDL2:

win32:LIBS += "C:\Users\admin\Documents\SDL2-2.28.5\i686-w64-mingw32\lib\libSDL2.a"

This is for static library. Do you want to link dynamically? If so, then you have to add *.lib, not *.a

ajcdev

@jsulm Yeah I want to link dynamically.

I tried this:

win32:LIBS += C:\Users\admin\Documents\SDL2-2.28.5\i686-w64-mingw32\lib\*.lib

Now the error is this:

:-1: error: cannot find C:\Users\admin\Documents\SDL2-2.28.5\i686-w64-mingw32\lib*.lib: Invalid argument

jsulm

@ajcdev said in Error: Cannot find -lSDL2:

win32:LIBS += C:\Users\admin\Documents\SDL2-2.28.5\i686-w64-mingw32\lib*.lib

What is this please?! You have to put the file name of your library instead of *.lib...

Are you using MinGW compiler?

ajcdev

@jsulm Yes I am using MinGW compiler. I do apologize since I'm really new when it comes to Qt Creator.

Also I don't have a .lib file in my SDL2 library and they're all .a files. I downloaded the SDL2 that uses MingW from their repository.

jsulm

@ajcdev said in Error: Cannot find -lSDL2:

Now it can't detect the SDL2 library itself

What does this mean? What exactly happens if you try to link the static version?

ajcdev

@jsulm

win32:LIBS += "C:\Users\admin\Documents\SDL2-2.28.5\i686-w64-mingw32\lib\libSDL2.a"

So this is what I used since there's no .lib files in the SDL2 MingW library. What happens is that my SDL2 codes get an error that they become undefined.

aerodesk.cpp:16: error: undefined reference to `SDL_Init'

Christian Ehrlicher

@ajcdev Since your Qt version is 64bit you must also link against the 64bit sdl lib.

ajcdev

@Christian-Ehrlicher I'm not sure how you do that. Do I need to add another library for SDL2 for this?

jsulm

@ajcdev You need to download and use 64bit version of that library. From where exactly did you download it?

ajcdev

@jsulm I downloaded from their Github Repository.

I downloaded the one that comes with the MingW.

Christian Ehrlicher

There is also a64 bit version in the dev zip file. Adjust your path accordingly.

jsulm

@ajcdev Then use the lib in x86_64-w64-mingw32 subfolder. i686-w64-mingw32 is the 32bit version.

ajcdev

@jsulm @Christian-Ehrlicher

Well, my code doesn't work after but I'll figure it out later.

I can say that the linking works properly now. Thanks for your help guys!