Path: chuka.playstation.co.uk!scea!peter_alau@playstation.sony.com
From: "Antony Arciuolo" <antony.arciuolo@mail.trincoll.edu>
Newsgroups: scea.yaroze.programming.gnu_compiler
Subject: Linking
Date: Thu, 2 Dec 1999 20:26:11 -0500
Organization: SCEA News Server
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Message-ID: <8275bv$jq3@scea>
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I have an array to describe a layout (index) for a GsBG.

I want to explicitly define it in the header of a BG module:

#ifndef BG_H
#define BG_H

u_short Layout1[] =
{ 
GsCELLtransparentCell, GsCELLtransparentCell, 
GsCELLtransparentCell, GsCELLtransparentCell, 
GsCELLtransparentCell, GsCELLtransparentCell
};

...
#endif

Now I want to compile using this makefile


PROGRAM = test.pxe
PXE_ADDR = 80140000

# To Optimize use -O3 instead of -g
OPTIONS = -c -g
LINKER = -Xlinker -Map -Xlinker mapfile.map -Xlinker -Ttext -Xlinker $(PXE_ADDR)
DEPENDENCIES = bg.o main.o

all: $(PROGRAM)

$(PROGRAM): $(PROGOBJ) $(DEPENDENCIES)
 gcc $(LINKER) $(DEPENDENCIES) -o $(PROGRAM)

main.o: main.c mainTIMS.h Levels.h
 gcc $(OPTIONS) main.c

bg.o: bg.c bg.h Levels.h
 gcc $(OPTIONS) bg.c

The problem is:

gcc -Xlinker -Map -Xlinker mapfile.map -Xlinker -Ttext -Xlinker 80140000 bg.o main.o -o test.pxe
main.o(.data+0x0): multiple definition of `Layout1'
bg.o(.data+0x0): first defined here
make.exe: *** [test.pxe] Error 1

How can I solve this? It just does not seem to me that it is being defined twice, and if I redeclare Layout1 as:


u_short Layout1[6];

Everything is fine. Why?

- Tony