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Date: Tue, 18 Apr 1995 09:55:11 EST
From: "Steve Salter (519) 452-4447" <SALTERS AT AM DOT FANSHAWEC DOT ON DOT CA>
Subject: Code works fine (Was: - no subject (01HPGHOSEGZW8WVYV7) -)
To: "stadier AT cuug DOT ab DOT ca" <stadier AT cuug DOT ab DOT ca>
Cc: DJGPP Mailing List <djgpp AT sun DOT soe DOT clarkson DOT edu>
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Ralph,

> I'm having a problem using abstract classes with GCC 2.6.3.  When I try to
> compile and link the following program exerpt:
> 

[Program Deleted]

> 
> I get the error message:
> 
> 	pure.cc(.text+0x7a): undefined reference to `__pure_virtual'
> 
> I can't seem to find any references to `__pure_virtual' (other than
UNDEFINED)
> in any of the DJGPP object libraries, so I don't know where it's expecting to
> find it.  Is this a problem with my particular installation, or are pure
> virtual functions not supported with this release of DJGPP?
> 
> Any suggestions, advice, hints or alternatives are appreciatively solicited.
> 
> Thanks,
> 
> Ralph

When I compiled, linked and ran your excerpt, it ran fine:

106$ gcc pure.C -liostr
107$ go32 a.out
go32 version 1.12.maint3 Copyright (C) 1994 DJ Delorie
Reading an int...
Reading a buffer...
108$

No linker errors.  Could you tell me what command line you used?

Steve Salter                                        salters AT am DOT fanshawec DOT on DOT ca
Programmer, 
Fanshawe College
London, ON Canada