CODEWITHSUNDEEP
copenglsdlcodeblocks
Moritz Schöfl
Moritz Schöfl

Reputation: 763

Link with SDL and OpenGL under Ubuntu

I want to write a simple SDL OpenGL app, Codeblocks is the IDE I use. When I create a new OpenGL project, it compiles fine, but if I try to use a function from the SDL header, le wild "undefined reference error" occurs. The same goes for the other direction, if I create a new SDL project, I can use the SDL functions without problems but I get a "undefined reference error" for the OpenGL functions...

NOTES:

Upvotes: 1

Views: 2373

Answers (2)

jørgensen
jørgensen

Reputation: 10551

Asking pkg-config is the preferable thing for obtain the particular flags and options needed for compilation and linkage against SDL and Mesa's GL+GLU. (Some GL implemenetations may not be shipping .pc files, but they should still be used where available.)

Upvotes: 2

datenwolf
datenwolf

Reputation: 162164

You need to add the correct library. Headers just give the compiler sort of a index. But you need to tell the linker which libraries to actually pull in. You should find the linker options at the build settings. You need the following libraries for SDL + OpenGL

  • libGL.so ( -lGL linker switch )
  • libSDL.so ( -lSDL linker switch)

You may also require libGLU.so if you're using glu… functions.

Upvotes: 2

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