From:	"Patrick Chen" <pck66 AT pd DOT jaring DOT my>
Newsgroups:	comp.os.msdos.djgpp
Subject:	DJCPP linking errors.
Date:	Tue, 9 Jul 2002 17:02:33 +0800
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Hello Folks,
      I face the linking errors for the object files of
draw_plot.c(library), DrawCircle.c. But individual compilation of each
source files gave no errors:

draw_plot.c file:
(part of program)
#include "draw_plot.h"
void vid_mode(byte_t mode){
 union REGS regs;
 regs.h.ah = 0;
 regs.h.al = mode;
 int86(0x10,&regs,&regs);
}

draw_plot.h file:
typedef unsigned char byte_t;
byte_t* double_buffer;
..
extern void
vid_mode(byte_t mode);

DrawCircle.c file:
int main() {
..
vid_mode(0x13);
..
}

Link Errors:
draw_plot.o:
draw_plot.c: multiple definition of "_vid_mode"

Other functions in the library face the link error messages.
What is wrong and how to solve this challenge?

Thank you

Patrick

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