Message-Id: <199704180452.AAA07139@hcst.net>
From: "Bryan Murphy" <bf461 AT cleveland DOT freenet DOT edu>
To: <djgpp AT delorie DOT com>
Subject: Another Interesting DJGPP C++ Problem
Date: Fri, 18 Apr 1997 00:47:43 -0400
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Well, here is my latest MAKE output capture.  This one I find
a little hard to explain also, and I even checked the FAQ this 
time! :)  Anyways, here's the problem:  I've written the basic
outline of a simple event driven GUI framework for my program.
It compiled fine and dandy till I tried adding in some very minimal
Allegro support (i.e. I added enough Allegro routines to ideally 
fill the screen with one window with absolutely nothing in it and
no functionality).  Well, as soon as I wrote a test program, and 
started linking in the Allegro library, I got a ton of undefined
references and a whole bunch of multiply defined refernces.  Any
ideas?  All problems are link related.  I suppose it's a coding 
problem, I'll be thorougly reviewing my code tomorrow, but any
help would still be appreciated!

gxx -g3 -fno-implicit-templates -fhandle-exceptions -I. -I../ -I./include
-o ugltest ugltest.cc universe.o    smath.o       timer.o       oolist.o
input.o       llist.o       inilib.o      ugl_bitmap.o ugl_view.o   
ugl_desktop.o uobject.o     vertex.o vertex.o      vector.o      object.o  
   ugl_window.o ugl_window.o  ugl_palette.o ugl_screen.o  ugl_component.o
ugl_container.o -L../ -lalleg
In file included from ugltest.cc:4:
e:/dev/djgpp/include/stdio.h:19: warning: `EOF' redefined
allegro.h:1232: warning: this is the location of the previous definition
vertex.o: In function `VERTEX::VERTEX(long, long, long)':
vertex.cc:4: multiple definition of `VERTEX::VERTEX(long, long, long)'
vertex.o:vertex.cc:4: first defined here
vertex.o: In function `VERTEX::Translate(long, long, long)':
vertex.cc:11: multiple definition of `VERTEX::Translate(long, long, long)'
vertex.o:vertex.cc:11: first defined here
vertex.o: In function `VERTEX::SetLocation(VERTEX)':
vertex.cc:18: multiple definition of `VERTEX::SetLocation(VERTEX)'
vertex.o:vertex.cc:18: first defined here
vertex.o: In function `VERTEX::SetLocation(long &, long &, long &)':
vertex.cc:22: multiple definition of `VERTEX::SetLocation(long &, long &,
long &)'
vertex.o:vertex.cc:22: first defined here
vertex.o: In function `VERTEX::X(void)':
vertex.cc:26: multiple definition of `VERTEX::X(void)'
vertex.o:vertex.cc:26: first defined here
vertex.o: In function `VERTEX::Y(void)':
vertex.cc:31: multiple definition of `VERTEX::Y(void)'
vertex.o:vertex.cc:31: first defined here
vertex.o: In function `VERTEX::Z(void)':
vertex.cc:36: multiple definition of `VERTEX::Z(void)'
vertex.o:vertex.cc:36: first defined here
vertex.o: In function `global constructors keyed to VERTEX::VERTEX(long,
long, long)':
vertex.cc:38: multiple definition of `global constructors keyed to
VERTEX::VERTEX(long, long, long)'
vertex.o:vertex.cc:38: first defined here
vertex.o: In function `__throw':
vertex.cc:38: multiple definition of `VERTEX virtual table'
vertex.o:vertex.cc:38: first defined here
ugl_window.o: In function `UGL_WINDOW::UGL_WINDOW(int, int)':
ugl_window.cc:5: multiple definition of `UGL_WINDOW::UGL_WINDOW(int, int)'
ugl_window.o:ugl_window.cc:5: first defined here
ugl_window.o: In function `UGL_WINDOW::~UGL_WINDOW(void)':
ugl_window.cc:13: multiple definition of `UGL_WINDOW::~UGL_WINDOW(void)'
ugl_window.o:ugl_window.cc:13: first defined here
ugl_window.o: In function `UGL_WINDOW::Initialize(void)':
ugl_window.cc:18: multiple definition of `UGL_WINDOW::Initialize(void)'
ugl_window.o:ugl_window.cc:18: first defined here
ugl_window.o: In function `UGL_WINDOW::Blit(UGL_BITMAP *, int, int, int,
int)':
ugl_window.cc:22: multiple definition of `UGL_WINDOW::Blit(UGL_BITMAP *,
int, int, int, int)'
ugl_window.o:ugl_window.cc:22: first defined here
ugl_window.o: In function `UGL_WINDOW::OnDraw(void)':
ugl_window.cc:27: multiple definition of `UGL_WINDOW::OnDraw(void)'
ugl_window.o:ugl_window.cc:27: first defined here
ugl_window.o: In function `UGL_WINDOW::SetBackgroundType(int)':
ugl_window.cc:45: multiple definition of `UGL_WINDOW::SetBackgroundType(int)
'
ugl_window.o:ugl_window.cc:45: first defined here
ugl_window.o: In function `UGL_WINDOW::ShutDown(void)':
ugl_window.cc:50: multiple definition of `UGL_WINDOW::ShutDown(void)'
ugl_window.o:ugl_window.cc:50: first defined here
ugl_window.o: In function `global constructors keyed to UGL_WINDOW::UGL_WIND
OW(int, int)':
ugl_window.cc:51: multiple definition of `global constructors keyed to
UGL_WINDOW::UGL_WINDOW(int, int)'
ugl_window.o:ugl_window.cc:51: first defined here
ugl_window.o: In function `UGL_WINDOW::OnUpdate(void)':
ugl_window.cc:20: multiple definition of `UGL_WINDOW::OnUpdate(void)'
ugl_window.o:ugl_window.cc:20: first defined here
ugl_window.o: In function `__throw':
ugl_window.cc:51: multiple definition of `UGL_WINDOW virtual table'
ugl_window.o:ugl_window.cc:51: first defined here
ugl_desktop.o: In function `UGL_DESKTOP::UGL_DESKTOP(void)':
ugl_desktop.cc:5: undefined reference to `UGL_VIEW::UGL_VIEW(int, int, int,
int)'
ugl_desktop.o: In function `__throw':
ugl_desktop.cc:16: undefined reference to `UGL_VIEW::Translate(int, int)'
ugl_desktop.cc(.text+0x248): undefined reference to `UGL_VIEW::SetOrigin(int
, int)'
make.exe: *** [ugltest.exe] Error 1