Date: Mon, 26 Apr 1999 16:36:17 -0400
Message-Id: <199904262036.QAA24397@envy.delorie.com>
From: DJ Delorie <dj AT delorie DOT com>
To: djgpp AT delorie DOT com
In-reply-to: <7g2gmq$15s$1@nnrp1.dejanews.com> (paulj63110@my-dejanews.com)
Subject: Re: Help please
References:  <7g2gmq$15s$1 AT nnrp1 DOT dejanews DOT com>
Reply-To: djgpp AT delorie DOT com
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> class stack
> {
>  public:
>  static int stack_count ;

You have declared that the class has a stack_count member, but where
do you ever define stack_count itself?  You need to define it, just
like you must define all member functions.  Try adding this somewhere:

int stack::stack_count = 0;