Thread: linker error - i must be doing something stupid

OK, I'm segregating my code to different files for clarity but seem to be missing something at link time. I use Code:Blocks on Win2k.

main.c

Code:

...
#include "mysqlfunc.h"
...
      mysqlconn = connect_to_mysql(mysqlconn);
...

mysqlfunc.h

Code:

#ifndef MYSQLFUNC_H
#define MYSQLFUNC_H
...
MYSQL *connect_to_mysql(MYSQL *);
...
#endif

mysqlfunc.c

Code:

MYSQL *connect_to_mysql(MYSQL *mysqlconn)
{
...
}

Error message:

Code:

main.c     undefined reference to connect_to_mysql(st_mysql*)

main.c, mysqlfunc.c and mysqlfunc.h are all included in my project.

What am I missing ? All files compile fine, they just aren't linking properly.

yes to both questions, it's really bugging me now.

I know, baffles me too. No spelling mistakes as I always use copy/paste when I do my prototypes (straight from the function declaration itself), and the same when I am writing the code to call the function (made that mistake too many times in the past).

The code I posted is direct copy/paste from Code::Blocks. I edited out the full content of the functions/prototypes as I didn't feel they were relevant.

Could this be something I am missing in my project setup ? some dependancy I am supposed to set ? I haven't written multi-source code using Code::Blocks before.

I have another function in another file that gives me the same linker error, but I figured if I could find out what I am doing wrong with this the same would apply.

I have noticed that the compiler variable for main.c is CPP and the compiler variable for mysqlfunc.c is CC, I am not sure how that all works though, and IF I should be changing it.

Thank You, Thank You, Thank You.

I changed the main.c compiler variable to CC and it compiled with no more linker errors. So, I can assume CC means C and CPP is C++, duh. I guess the default was CPP when I first created main.c.

I love this forum.