Linker Error (SDL, OpenGL)

Question

I'm getting this error when trying to compile:

*1>main-light.obj : error LNK2019: unresolved external symbol _SDL_FreeSurface referenced in function "private: unsigned int __thiscall objloader::loadTexture(char const *)" (?loadTexture@objloader@@AAEIPBD@Z) 1>main-light.obj : error LNK2019: unresolved external symbol _SDL_LoadBMP_RW referenced in function "private: unsigned int __thiscall objloader::loadTexture(char const *)" (?loadTexture@objloader@@AAEIPBD@Z) 1>main-light.obj : error LNK2019: unresolved external symbol _SDL_RWFromFile referenced in function "private: unsigned int __thiscall objloader::loadTexture(char const *)" (?loadTexture@objloader@@AAEIPBD@Z) 1>main-light.obj : error LNK2019: unresolved external symbol _SDL_GetTicks referenced in function "public: void __thiscall Player::init(void)" (?init@Player@@QAEXXZ) 1>main-light.obj : error LNK2019: unresolved external symbol _SDL_GetKeyState referenced in function "void __cdecl Control(float,float,bool)" (?Control@@YAXMM_N@Z) 1>main-light.obj : error LNK2019: unresolved external symbol _SDL_WarpMouse referenced in function "void __cdecl Control(float,float,bool)" (?Control@@YAXMM_N@Z) 1>main-light.obj : error LNK2019: unresolved external symbol _SDL_GetMouseState referenced in function "void __cdecl Control(float,float,bool)" (?Control@@YAXMM_N@Z) 1>main-light.obj : error LNK2019: unresolved external symbol _SDL_ShowCursor referenced in function "void __cdecl Control(float,float,bool)" (?Control@@YAXMM_N@Z) 1>main-light.obj : error LNK2019: unresolved external symbol _SDL_Delay referenced in function _SDL_main 1>main-light.obj : error LNK2019: unresolved external symbol _SDL_GL_SwapBuffers referenced in function _SDL_main 1>main-light.obj : error LNK2019: unresolved external symbol _SDL_PollEvent referenced in function _SDL_main 1>main-light.obj : error LNK2019: unresolved external symbol _SDL_SetVideoMode referenced in function _SDL_main 1>main-light.obj : error LNK2019: unresolved external symbol _SDL_Init referenced in function _SDL_main 1>MSVCRT.lib(wcrtexew.obj) : error LNK2019: unresolved external symbol wWinMain@16 referenced in function __tmainCRTStartup 1>C:\Users\Name\Desktop\Projects\FPS\Debug\FPS.exe : fatal error LNK1120: 14 unresolved externals*

I tried to change to a console application and it didn't work. How can I fix it?

SDL surely comes with a couple of .lib files. You're forgetting to link against those. Make sure you do within your linker options. — Bart, Mar 10 '12 at 21:29
what do you mean? Properties -> linker -> input -> additional dependencies -> "SDL.lib; SDLmain.lib; glut32.lib"? — Tiago Salzmann, Mar 10 '12 at 22:08
@TiagoSalzmann: I always thought that linker dependencies on MSVC do not need to be ";"-separated. Try removing semicolons. — SigTerm, Mar 10 '12 at 22:38

score 7 · Answer 1 · answered Jun 27 '12 at 22:32

7

Direct to the 32 bit versions of the library.

answered Jun 27 '12 at 22:32

Eric Smekens

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score 0 · Accepted Answer · edited Dec 30 '17 at 11:15

0

For OpenGL you may also need glu32.lib and opengl32.lib

edited Dec 30 '17 at 11:15

Donald Duck

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answered Mar 10 '12 at 22:13

Blood

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glut32.lib should be fine, but opengl32.lib is needed too. And are you sure that u have configured SDL properly? – Blood Mar 10 '12 at 22:18
yes. i just added opengl32.lib and didn't solve the problem. – Tiago Salzmann Mar 10 '12 at 22:24
I copyed the SDL and OpenGL include and lib files in the main file of my project. Can it be the cause of the problem? – Tiago Salzmann Mar 10 '12 at 22:27
no, this is all i saw on the build tab – Tiago Salzmann Mar 10 '12 at 22:30
is the solution not related with '1>MSVCRT.lib(crtexe.obj) : error LNK2019: unresolved external symbol _main referenced in function ___tmainCRTStartup'? – Tiago Salzmann Mar 10 '12 at 22:32
His linker errors indicate that he does not link with SDL. Somehow. glu has nothing to do with it. – SigTerm Mar 10 '12 at 22:36
oh, so the problem is sdl. But what with SDL. I added SDL.lib and SDLmain.lib and that's everything that's needed. Maybe are the dll files causing any problem? – Tiago Salzmann Mar 10 '12 at 22:41

Linker Error (SDL, OpenGL)

2 Answers2