From: Martin Str|mberg <ams AT speedy DOT ludd DOT luth DOT se>
Subject: Re: DJCPP linking errors.
Newsgroups: comp.os.msdos.djgpp
References: <age8re$e54$1 AT news4 DOT jaring DOT my>
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Date: 09 Jul 2002 14:27:56 GMT
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To: djgpp AT delorie DOT com
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Reply-To: djgpp AT delorie DOT com

Patrick Chen <pck66 AT pd DOT jaring DOT my> wrote:
: 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?

How about #including draw_plot.h in DrawCircle.c?


Right,

						MartinS