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Undefined references in projects

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Nacho:
Hi! I´m trying to compile an SDL project -created using the CodeBlock´s template for SDL projects- which includes a few source files. After a successful compilation I get linker errors about "undefined references" from my own´s source files. As a simple test I tried the following piece of code, but the error is still there (I get an undefined reference to Vector2DFPDotProd).

#include "MathLibFP.h"

int
main(int argc,char** argv)
{
    Vector2DFPType VecA = {1.0f,1.0f}, VecB = {1.0f,1.0f};
    Vector2DFPDotProd(&VecA,&VecB);
    return 0;
}

I tried cleaning the project and rebuilding, but nothing. Here´s a piece of the project´s makefile:

.deps/MathLibFP.d: MathLibFP.c
   @echo Calculating dependencies for "MathLibFP.c"...
   @$(default_CC) -MM $(default_CFLAGS) -MF .deps/MathLibFP.d -MT .objs/MathLibFP.o $(default_INCS) MathLibFP.c

.objs/MathLibFP.o: .deps/MathLibFP.d
   @echo Compiling "MathLibFP.c"...
   @$(default_CC) $(default_CFLAGS) $(default_INCS) -c MathLibFP.c -o .objs/MathLibFP.o

which shows that MathLibFP.c is being compiled. Any suggestions on how to solve this??

Thanks in advance!

--Nacho

Michael:
Hello,

May be this topic could be useful for you.

I would also advice a search in the forum :). There are already some posts about SDL that could be useful for solve your problem.

Michael

Nacho:
Thanks for the link, but my current problem is not related with SDL´s files but with some of my own files (MathLibFP.c/h, for example) that do not contain any SDL code at all. In fact, the SDL program that gets automatically created by CB works ok.

I also searched in the forum but most threads were on "undefined references" obtained by programmers who wanted to compile CB´s source code, which is not my case. Although I did found this thread: http://forums.codeblocks.org/index.php?topic=947.0, that mentions somethings closely related to the problem I´m experiencing:


--- Quote ---- the compiler sometimes gives messages like undefined reference to function f @ some point in some file where that function is not even used :p. Well I know that this is not a very good description, but...
--- End quote ---

Thanks again for your input!

--Nacho

Michael:
Ok, sorry :oops:.

Which version of C::B are you using? And which OS?

Michael

Nacho:

--- Quote from: Michael on January 16, 2006, 09:38:11 pm ---Ok, sorry :oops:.
--- End quote ---

Eh, no problem! Please, don´t feel bad about it.  :)

Anyway, I came here to tell you that I finally fixed it, but the steps I took to arrive at the solution are a little bit weird: I removed main.cpp (the one that gets automatically generated by CB SDL´s template), renamed it to blabla.cpp, created and included a new file called main.c, copied the contents from blabla.cpp to main.c and rebuilt the whole project.

I´m using the latets version of CB (the one that includes MinGW) and WinXP. Although I solved my problem, I´d like to know if somebody else has ever experienced a similar problem.

Michael, thanks again for your reply!

--Nacho

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