Subj : Linker error, 'undefined symbo l'
To   : borland.public.cpp.borlandcpp
From : "Rob C" <robb_christiansen@juno.com>
Date : Fri Jul 04 2003 12:01 pm


-------- The errors I get : 
Info :Making...
Info :Building...
Info :Compiling C:\LEARN\color2.c
Info :Compiling C:\LEARN\try2.cpp
Info :Compiling C:\LEARN\try1.cpp
Info :Transferring to C:\BC5\BIN\tlink.exe @C:\LEARN\TRY2.R$P
Warn :  (1,1):No module definition file specified: using defaults <-------- ??????????????
Error:  (1,1):Undefined symbol _cprintf in module color2.c
Error:  (1,1):Undefined symbol _textbackground in module color2.c
Error:  (1,1):Undefined symbol _textcolor in module color2.c
--------------------
[The linker warning, 'no module definition file specified: using defaults,']
[how do I fix that?]
--------------------------- try1.cpp 
#include <iostream.h>
#include <conio.h>

int try2();

int main()
{
cout << "This is module 1, try1.cpp \n";
try2();

return 0;

}
--------------------- try2.cpp  
#include <iostream.h>

extern "C" int color2(void );

int try2()
{
cout << "This is module 2, try2.cpp \n";
color2();

return 0;

}
------------------------------- color2.c 
#include <stdio.h>
#include <conio.h>

void textbackground(int newcolor);
void textcolor(int newcolor);
int cprintf(const char * );

----------
[I think I got all the above function prototypes correct, but the
linker still returns 'undefined symbol']
----------

char message[] = "This is module 3, color2.c";

int color2()
{
	int col=15, row=10;

   gotoxy( col, row );
   textcolor(7);
   textbackground(1);
   cprintf(message); 
return(0);
}

.