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1

General / [SOLVED]Unresolved external symbol when statically linking

« on: July 27, 2016, 03:38:13 pm »

SOLUTION:
Firstly, thanks to the patient community who helped me (eventually) figure this out. The answer was in the tutorials and FAQs but it didn't click for me in the way it was written. So just in case anyone finds this thread in a similar situation, the Additional Dependencies needs to include ALL the window libs, not just the SFML libs,opengl32,winmmn.lib and gdi32.lib. As such, mine now works with them as:
Debug

sfml-window-s-d.lib;sfml-graphics-s-d.lib;sfml-audio-s-d.lib;sfml-network-s-d.lib;sfml-system-s-d.lib;sfml-main-d.lib;opengl32.lib;winmm.lib;gdi32.lib;freetype.lib;jpeg.lib;openal32.lib;flac.lib;vorbisenc.lib;vorbisfile.lib;vorbis.lib;ogg.lib;ws2_32.lib;

Release

sfml-window-s.lib;sfml-graphics-s.lib;sfml-audio-s.lib;sfml-network-s.lib;sfml-system-s.lib;sfml-main.lib;opengl32.lib;winmm.lib;gdi32.lib;freetype.lib;jpeg.lib;openal32.lib;flac.lib;vorbisenc.lib;vorbisfile.lib;vorbis.lib;ogg.lib;ws2_32.lib;

ORIGINAL POST:
I am having problems with static linking in SFML and Visual Studio. I'm having this linking problem in my game so I thought I would test out why by going back to basics by following the tutorial below:
http://www.sfml-dev.org/tutorials/2.2/start-vc.php

Using dynamic linking (and copying the .dlls from the sfml/bin folder to the project folder) it works as expected and I get that lime green circle as per the tutorial.

However if I then add the -s suffix as below:
Debug:

sfml-graphics-s-d.lib;sfml-window-s-d.lib;sfml-system-s-d.lib

Release:

sfml-graphics-s.lib;sfml-window-s.lib;sfml-system-s.lib

and add the SFML_STATIC macro to c/c++ preprocessor defintion I get a lot of "unresolved external symbol" errors referring to the sfml-graphics-s.lib, with the same error if its build in debug or release mode.

Can anyone advise as I can't see what I have missed from the tutorial and it works fine dynamically.

EDITED TO ADD ERRORS:

Error   LNK2001   unresolved external symbol __imp__glReadPixels@28   ConsoleApplication2   C:\Users\NAME\Documents\Visual Studio 2015\Projects\ConsoleApplication2\ConsoleApplication2\sfml-graphics-s.lib(RenderWindow.cpp.obj)   1   1   

Error   LNK2001   unresolved external symbol __imp__glBlendFunc@8   ConsoleApplication2   C:\Users\NAME\Documents\Visual Studio 2015\Projects\ConsoleApplication2\ConsoleApplication2\sfml-graphics-s.lib(RenderTarget.cpp.obj)   1   1   


etc. There are about 65 of these errors, all the same error type of LNK2001 for various functions in the sfml-graphics.lib

2

Audio / Music Plays but Sound wont - no symbols loaded for sfml-audio-d-2.dll?

« on: July 26, 2016, 05:54:31 pm »

I have been working on a game using SFML and have managed to implement Music objects without problems. However, I can't seem to get a Sound object to work. I've tried a bare bones SFML project as per code below to make sure it's not anything related to my game and it still doesn't play a sound. The program just runs through and returns at the end, with no error messages.

SFML version 2.3.2
Visual Studio 2015

#include <SFML/Audio.hpp>
#include <iostream>

int main()
{
        sf::SoundBuffer buffer;
        sf::Sound sound;

        if (!buffer.loadFromFile("assets/sounds/pickup.wav")) {
               //error handling
                std::cout << "can't find sound file" << std::endl;
        }
        sound.setBuffer(buffer);

        if (sound.getStatus() != sf::Sound::Playing) {
                sound.play();
        }
        return 0;
}

The error handling message doesn't trigger so it seems to be loading ok, and its from the same folder as the correctly working music wav file. During debugging I have set a breakpoint at the sound.play() function and it definitely calls this, with the sound object seeming to hold the correct data (e.g. sound duration looks right etc). However it does have the following message:
sound   <Information not available, no symbols loaded for sfml-audio-d-2.dll>   sf::Sound

I've tried googling and it seems that there might be an issue with the .dll or .lib so I've checked these again and I'm sure I have this right:

All sfml 2.3.2 dll files are all in the same folder as main.

Project properties:
Debug
C/C++ - Additional Include Directories = C:\Users\[name]\Documents\SFML-2.3.2\include
Linker - Additional Library Directories = C:\Users\[name]\Documents\SFML-2.3.2\lib
Linker - Additional Dependencies = sfml-audio-d.lib;sfml-graphics-d.lib;sfml-window-d.lib;sfml-system-d.lib;kernel32.lib;user32.lib;gdi32.lib;winspool.lib;comdlg32.lib;advapi32.lib;shell32.lib;ole32.lib;oleaut32.lib;uuid.lib;odbc32.lib;odbccp32.lib;%(AdditionalDependencies)

Release
C/C++ - Additional Include Directories = C:\Users\[name]\Documents\SFML-2.3.2\include
Linker - Additional Library Directories = C:\Users\[name]\Documents\SFML-2.3.2\lib
Linker - Additional Dependencies = sfml-audio.lib;sfml-graphics.lib;sfml-window.lib;sfml-system.lib;kernel32.lib;user32.lib;gdi32.lib;winspool.lib;comdlg32.lib;advapi32.lib;shell32.lib;ole32.lib;oleaut32.lib;uuid.lib;odbc32.lib;odbccp32.lib;%(AdditionalDependencies)

Can anyone advise as I feel like I'm banging my head against a wall here. I hope this is enough info but let me know if you want to know anything else about the setup.