Mailing-List:	contact cygwin-help AT cygwin DOT com; run by ezmlm
List-Subscribe:	<mailto:cygwin-subscribe AT cygwin DOT com>
List-Archive:	<http://sourceware.org/ml/cygwin/>
List-Post:	<mailto:cygwin AT cygwin DOT com>
List-Help:	<mailto:cygwin-help AT cygwin DOT com>, <http://sourceware.org/ml/#faqs>
Sender:	cygwin-owner AT cygwin DOT com
Mail-Followup-To:	cygwin AT cygwin DOT com
Delivered-To:	mailing list cygwin AT cygwin DOT com
Message-ID:	<417ADE6A.7090804@familiehaase.de>
Date:	Sun, 24 Oct 2004 00:42:50 +0200
From:	"Gerrit P. Haase" <gp AT familiehaase DOT de>
Organization:	Esse keine toten Tiere
User-Agent:	Mozilla/5.0 (Windows; U; WinNT4.0; de-AT; rv:1.7.3) Gecko/20040910
MIME-Version:	1.0
To:	Judd <jbogus1 AT yahoo DOT com>
CC:	cygwin AT cygwin DOT com
Subject:	Re: Build/Linker question again (g++)
References:	<clb7sb$bar$1 AT sea DOT gmane DOT org>
In-Reply-To:	<clb7sb$bar$1@sea.gmane.org>
X-IsSubscribed:	yes

Judd wrote:

> The error I'm getting now is:
> ----------------------------
> /usr/lib/gcc-lib/i686-pc-cygwin/3.3.3/libgcc.a(_chkstk.o)(.text+0x0):
> multiple definition of `__alloca'
> 
> /usr/lib/libcygwin.a(d000085.o)(.text+0x0): first defined here
> 
> /usr/lib/gcc-lib/i686-pc-cygwin/3.3.3/libgcc.a(_eprintf.o)(.text+0x0):
> multiple definition of `___eprintf'
> 
> /usr/lib/libcygwin.a(d000027.o)(.text+0x0): first defined here
> 
> ---------------------------------
> 
> From the build command:
> 
> -------------------------
> 
> g++ -shared \
 >  -nodefaultlibs \
 >  -o libInventor.dll \
 >  -Wl,--out-implib=libInventor.dll.a \
>  -Wl,--export-all-symbols \
 >  -Wl,--enable-auto-import \
 >  -Wl,--whole-archive \
>  libInventor.a \
 >  -WL,--no-whole-archive \
 >  -L/usr/lib \
 >  -L/usr/lib/gcc-lib/i686-pc-cygwin/3.3.3 \
 >  -L/usr/X11R6/lib \
 >  -L/usr/lib/w32api \
 >  -L../libimage \
 >  -L../libFL/src \
>  -ljpeg.dll -limage -lFL -lX11.dll -lfltk_gl.dll -lGLU.dll \
 > -lGL.dll -liconv.dll -lfreetype.dll -lcygwin -lstdc++ \
 > -lasprintf -lz -lkernel32 -lgcc

You don't need to add the .dll prefix, the linker should automatically 
pick up the .dll.a import lib if both, import lib and static archives 
are present.


> -----------------------------
> 
> I'm using nodefaultlibs because I had a problem linking before where I was
> getting lots of multiple definition errors from essentially the same
> library.  Using nodefaultlibs and linking all the libs I need by hand has
> fixed all those, but I have those last 2 multiple definition errors.  Is
> there any way to link libcygwin and libgcc without getting multiple
> definitions of ___eprintf and __alloca?  It seems bizarre that those 2 would
> conflict.  Maybe there's a command line option that I need to be using in my
> build command.

There is no option like nodefaultlibs:

$ ld --help | grep nodefaultlibs

Try -nostdlib instead.


Gerrit
-- 
=^..^=

--
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple
Problem reports:       http://cygwin.com/problems.html
Documentation:         http://cygwin.com/docs.html
FAQ:                   http://cygwin.com/faq/

- Raw text -