SDL project won't compile (no code yet)

This is a discussion on SDL project won't compile (no code yet) within the Game Programming forums, part of the General Programming Boards category; I am trying to build a SDL project. So far I haven't been able to properly set up the project, ...

  1. #1
    Shadow12345
    Guest

    SDL project won't compile (no code yet)

    I am trying to build a SDL project. So far I haven't been able to properly set up the project, this is what happens:

    sdlmain.lib(SDL_main.obj) : error LNK2001: unresolved external symbol _SDL_main
    Debug/SDL.exe : fatal error LNK1120: 1 unresolved externals

    I get this before I even write any code in. I am pretty sure I have set up SDL correctly (I put the SDL.dll in system32 [I am currently on Windows 2000], I have selected multithreaded dll, and I added sdl.lib and sdlmain.lib libraries to the project)

    I do not know why this isn't working, and to tell you the truth I don't really even understand the errors I am getting (the ones listed above). If anyone can either shed some light specifically to what I am doing wrong in SDL, or if they can just give me some clarifications on what the errors mean, I will be very happy.
    Thank you thank you thank you.

  2. #2
    Fingerstyle Guitarist taylorguitarman's Avatar
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    Assuming you've setup SDL correctly, make sure you're main looks like this:

    int main( int argc, char **argv )

    or

    int main( int argc, char *argv[] )

    you need to include the full command line arguments as parameters.
    If that doesn't take care of it let me know.
    If a tree falls in the forest, and no one is around to see it, do the other trees make fun of it?

  3. #3
    Shadow12345
    Guest
    That seems to have taken care of it. Before I was just setting up the project settings and including header files, and then compiling with no main ( I was doing this just to make sure it could find all the header files and what not).

    Also what is the difference between

    int main( int argc, char **argv )

    and

    int main( int argc, char *argv[] )
    ?

    Your help is greatly appreciated

  4. #4
    I am the worst best coder Quantrizi's Avatar
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    Considering it looks like it is from VC++, instead of int main(blah...), type int main(void)...see if that works.

  5. #5
    geek SilentStrike's Avatar
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    taylor is correct. SDL redefines main or something, and it only correctly redefines it if the command line arguments are there.
    Prove you can code in C++ or C# at TopCoder, referrer rrenaud
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  6. #6
    Registered User Invincible's Avatar
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    Also what is the difference between
    (char**argv) is a pointer to a pointer of a location where chars are stored, and (char *argv[]) is a pointer to an array of chars. So basically, same difference.

    pointer* = undefined array[]
    "The mind, like a parachute, only functions when open."

  7. #7
    Code Warrior
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    By the way, what is SDL?
    Current projects:
    1) User Interface Development Kit (C++)
    2) HTML SDK (C++)
    3) Classes (C++)
    4) INI Editor (Delphi)

  8. #8
    I am the worst best coder Quantrizi's Avatar
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    This question was answered before in this exact thread, but it's a Library kinda like DirectX, but better, and also developed by a person who works(or worked) at Blizzard Entertainment..from what I've read.

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