SDL project won't compile (no code yet)

Shadow12345 · 05-22-2002

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.

**taylorguitarman** · 05-22-2002

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.

Shadow12345 · 05-22-2002

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

**Quantrizi** · 05-24-2002

Considering it looks like it is from VC++, instead of int main(blah...), type int main(void)...see if that works.

**SilentStrike** · 05-25-2002

taylor is correct. SDL redefines main or something, and it only correctly redefines it if the command line arguments are there.

**Invincible** · 05-25-2002

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[]

**GaPe** · 05-25-2002

By the way, what is SDL?

**Quantrizi** · 05-25-2002

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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