Problem with colors on Ubuntu

[simfouy]

Hi,
I recently (yesterday) installed libsfml-dev on Ubuntu 16.04, and I get a weird error while trying to load my graphic lib (using sfml) trough dlsym:

undefined symbol: _ZN2sf5Color5BlackE

I tried on an other system (ArchLinux) and everything works fine. This is the part causing problem :

sf::Color::Black

I tried to change the color (to :

sf::Color::Blue

), and the error becomes

undefined symbol: _ZN2sf5Color5BlueE

So the error is from sf::Color
Any ideas ? 

[eXpl0it3r]

Do you link the graphics module in the right order?

[simfouy]

I compile my graphic lib with

-lsfml-graphics -lsfml-window -lsfml-system

. This lib includes all the SFML stuff.
I then link at runtime but dlopens fails with the error I gave in the first post.

[eXpl0it3r]

dlopen fails?

[simfouy]

Yes, it returns NULL and dlerror return this:

undefined symbol: _ZN2sf5Color5BlackE

[eXpl0it3r]

Ah okay, I didn't realize that you were using dlsym, must have jumped that line.

The colors are typedef-ed in the SFML header, so they'd generally get statically "linked" into your application. Not sure how one deals with header defines when using dlsym.

[simfouy]

Well I include these headers in the lib I'm calling with dlopen:

#include <SFML/Graphics.hpp>
#include <SFML/Window/Keyboard.hpp>

Is that enough ?

[eXpl0it3r]

In your build command, did you place your cpp file after the linker arguments?

[simfouy]

In your build command, did you place your cpp file after the linker arguments?

Yes  But as I said, this code works on ArchLinux but not on my Ubuntu 

[eXpl0it3r]

Well you shouldn't. If your code depends on the libraries, you need to put them in front of the linker arguments.
Just because something works on system X doesn't mean it's generally correct.

[simfouy]

Well you shouldn't. If your code depends on the libraries, you need to put them in front of the linker arguments.
Just because something works on system X doesn't mean it's generally correct.

I'm not sure what you mean by linker. I'm linking only at runtime