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Date:	Thu, 10 Jan 2002 11:46:24 +0200
From:	Jean le Roux <jean AT infosat DOT net>
To:	cygwin AT cygwin DOT com
Subject:	building dll's under cygwin
Message-ID:	<20020110114624.A6156@infosat.net>
Mime-Version:	1.0
User-Agent:	Mutt/1.2.5i

Hi all

Seems I've been on the receiving end of all the advice so far.. hope
this will change in the future :)

Until then.. here is the next piece of pain ;)
I use the autotools(all of them) to build my project. I've read the
whole of chapter 25 of the Autobook-1.3, and all I could find on
dll's in the faq and in this list's archives.. and I'm still stumped :(

Here is what my compiler tells me:

cd . \
  && CONFIG_FILES= CONFIG_HEADERS=config.h \
     /bin/sh ./config.status
creating config.h
config.h is unchanged
make  all-recursive
make[1]: Entering directory `/cygdrive/e/projects/myproject'
Making all in libsrc
make[2]: Entering directory `/cygdrive/e/projects/myproject/libsrc'
/bin/sh ../libtool --mode=link c++  -g -O2  -o libpmfp.la -rpath /usr/local/lib --no-undefined	--version-info 0:0:0 common.lo pmfp.lo pmfp_log.lo crypto.lo mckey.lo  
libtool: link: warning: undefined symbols not allowed in i686-pc-cygwin shared libraries
rm -fr .libs/libpmfp.la .libs/libpmfp.* .libs/libpmfp.*
ar cru .libs/libpmfp.a  common.o pmfp.o pmfp_log.o crypto.o mckey.o 
ranlib .libs/libpmfp.a
creating libpmfp.la
(cd .libs && rm -f libpmfp.la && ln -s ../libpmfp.la libpmfp.la)
make[2]: Leaving directory `/cygdrive/e/projects/myproject/libsrc'
make[2]: Entering directory `/cygdrive/e/projects/myproject'
cd . \
  && CONFIG_FILES= CONFIG_HEADERS=config.h \
     /bin/sh ./config.status
creating config.h
config.h is unchanged
make[2]: Leaving directory `/cygdrive/e/projects/myproject'
make[1]: Leaving directory `/cygdrive/e/projects/myproject'


Now, from  what I understand, the --no-undefined switch should
pre-empt any " warning: undefined symbols ..." warnings.
I suspect if this is solved, then the dll will be created.

In my configure.in i do have AC_LIBTOOL_WIN32_DLL, which seems to be
the only major thing to look out for.

Anyone else had this problem before ?


thanx
-- 
Jean le Roux
Binary Entropy Catalyst

Cellular:	083 505 6443

I owe the public nothing.
		-- J.P. Morgan

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