Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner@cygwin.com Mail-Followup-To: cygwin@cygwin.com Delivered-To: mailing list cygwin@cygwin.com Message-ID: <013401c28a98$a2fc48e0$78d96f83@pomello> From: "Max Bowsher" To: "Garrett Banuk" , References: Subject: Re: Importing symbols from .exe's Date: Tue, 12 Nov 2002 22:12:49 -0000 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Garrett Banuk wrote: > Hello. We are trying to build a library that references symbols from > an executable. How it works is the executable loads up and then loads > the dynamic library. The library can then implicitly reference > symbols inside the executable. This works fine under Linux and > Solaris. > > Under Cygwin I am having problems building this library. I get the > error "undefined reference to `XXX`" for all the symbols. The library > has no problem resolving symbols that are in other libraries, but > fails on the symbols in the executable. > > So how do I build this library? The symbols can not be resolved until > runtime when the executable loads up the library. Thanks. Windows' dynamic loader isn't powerful enough to do what you want. I think that Apache takes the approach of putting the symbols that need to be shared into a second library, which the original program and library both import. Max. -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Bug reporting: http://cygwin.com/bugs.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/