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Date: Mon, 05 Mar 2001 16:45:17 -0500
To: "Lyman Neuschaefer" <lyman AT bcsisims DOT com>, <cygwin AT cygwin DOT com>
From: "Larry Hall (RFK Partners, Inc)" <lhall AT rfk DOT com>
Subject: RE: Unresolved references to opendir/readdir/closedir
In-Reply-To: <NDBBIAKKHKMFGDHKLMKPGENFCBAA.lyman@bcsisims.com>
References: <20010305155758 DOT D16971 AT redhat DOT com>
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You don't need to explicitly include the "C" library.  You'll get it by 
default.  The better question is, what symbols are your objects looking for 
here and what header files did you include to get these to compile?

Larry Hall                              lhall AT rfk DOT com
RFK Partners, Inc.                      http://www.rfk.com
118 Washington Street                   (508) 893-9779 - RFK Office
Holliston, MA 01746                     (508) 893-9889 - FAX



At 04:44 PM 3/5/2001, Lyman Neuschaefer wrote:
>Further elaboration on my problem,
>
>Thanks for your reply.  I've tried what you said, but
>am still having problems...
>
>After reinstalling cygwin 1.1.8 on
>Win NT SP5 I have found definitions
>for opendir/readdir/closedir within /lib/libc.a:
>
>  /lib:54>nm -C libc.a |egrep '(opendir|readdir|closedir)'
>  00000000 I _imp__readdir
>  00000000 T readdir
>  00000000 I _imp__opendir
>  00000000 T opendir
>  00000000 I _imp__closedir
>  00000000 T closedir
>  00000000 I _imp___readdir
>  00000000 T _readdir
>  00000000 I _imp___opendir
>  00000000 T _opendir
>  00000000 T _closedir
>  00000000 I _imp___closedir
>
>However, these symbols are still unresolved when linking
>an executable as observed below:
>
>  g++  -o svintf SVIntf.o cnf.a \
>  ../message/message.a \
>  ../viewers/table.a \
>  ../common/common.a \
>  ../../../tools/bcgui/bcgui.a \
>  ../../../tools/support/support.a \
>  -L/usr/local/LessTif/Motif2.0/lib -L/usr/X11R6/lib -L/lib -lc -lXm -lXt -lS
>M -lICE -lX11
>  cnf.a(SVIntfLoader.o)(.text+0x2942):SVIntfLoader.C: undefined reference to
>`opendir(char const *)'
>  cnf.a(SVIntfLoader.o)(.text+0x2a7b):SVIntfLoader.C: undefined reference to
>`readdir(DIR *)'
>  cnf.a(SVIntfLoader.o)(.text+0x2c43):SVIntfLoader.C: undefined reference to
>`closedir(DIR *)'
>  cnf.a(SVIntfLoader.o)(.text+0x2ce4):SVIntfLoader.C: undefined reference to
>`opendir(char const *)'
>  cnf.a(SVIntfLoader.o)(.text+0x2e3b):SVIntfLoader.C: undefined reference to
>`readdir(DIR *)'
>  cnf.a(SVIntfLoader.o)(.text+0x3107):SVIntfLoader.C: undefined reference to
>`closedir(DIR *)'
>  collect2: ld returned 1 exit status
>
>Notice the explicit inclusion of /lib/libc.a (-L/lib -lc).  I am tearing my
>hair out on this one.  Thanks for any help you can provide.
>
>Lyman
>
>-----Original Message-----
>From: Christopher Faylor [mailto:cgf AT redhat DOT com]
>Sent: Monday, March 05, 2001 1:58 PM
>To: cygwin AT cygwin DOT com
>Cc: lyman AT bcsisims DOT com
>Subject: Re: Unresolved references to opendir/readdir/closedir
>
>
>On Mon, Mar 05, 2001 at 01:59:44PM -0700, Lyman Neuschaefer wrote:
> >Apologies in advance for the following inane question:
> >
> >I am unable to link an executable which uses opendir, readdir
> >and closedir.  Via nm I am unable to find definitions for
> >these symbols in any of the libraries in /usr/lib.  Moreover,
> >I've scoured the cygwin FAQ as well as the cygwin archive
> >and have found no answer to this problem.  Surely I'm not
> >understanding something fundamental.
>
>You apparently don't have the cygwin package fully installed.
>Rerun setup and install it.
>
>cgf
>
>
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