Re: libtool related build questions

[Bob Rossi]

On Thu, Dec 14, 2006 at 01:35:35PM -0500, Bob Rossi wrote:
> On Thu, Dec 14, 2006 at 07:11:08PM +0100, Ralf Wildenhues wrote:
> > > What exactly can I do about the libtool warning messages?
> > 
> > These?
> 
> Yup,
> 
> > >   *** Warning: This system can not link to static lib archive 
> > > /home/bobbybrasko/log4cxx/apr-util/src/prefixdir/lib/libaprutil.la.
> > >   *** I have the capability to make that library automatically link in 
> > > when
> > >   *** you link to this library.  But I can only do this if you have a
> > >   *** shared version of the library, which you do not appear to have.
> > 
> > They are sometimes bogus.  Nobody has gotten around to fixing that yet.
> 
> OK, That's interesting. I wonder if this is OK then. Is there a way to
> tell if it's bogus or not?
> 
> > > is the -enable-experimental-libtool something this list endorses? 
> > 
> > FWIW, I have no idea what it does.  Is there documentation for it, or
> > source to read?  Where does it come from?
> 
> I learned about this swich from the apr folks. http://apr.apache.org/
> This is a quote from someone,
>   It uses jlibtool, Justin's replacement for libtool.                         
>                             
>                                                                               
>                           
>   The source code for it is here:                                             
>                             
>   http://svn.apache.org/repos/asf/apr/apr/trunk/build/jlibtool.c              
>                             
> 
> I thought maybe there was some connection between libtool and this
> option/project. If not, sorry.
> 
> > > BTW, OUCH, I just realized I configured with the wrong parameter, 
> > > -enable-experimental-libtool should have been 
> > > --enable-experimental-libtool.
> > 
> > All I know is -enable-foo and --enable-foo are equivalent.
> 
> OK, that's why re running configure with --enable-experimental-libtool
> didn't change a thing :). Thanks for the insight.
> 
> > Where are the XML_ParserFree and other functions located at?
> > Do you have a URL for the tarball you're building?
> 
> I'm building apr, and apr-util from here,
>   http://apr.apache.org/anonsvn.html
> and I'm building log4cxx from here,
>   http://logging.apache.org/site/cvs-repositories.html
> 
> I've built them all with mingw, and all of these packages, from what I
> can tell, use libtool. 
> 
> XML_ParserFree comes from here,
>  apr-util/src/apr-util/xml/expat/lib/expat.h:XML_ParserFree(XML_Parser 
> parser);
> which in turn, when I configured it, gave this message:
> 
>   *** Warning: This system can not link to static lib archive 
> /home/bobbybrasko/log4cxx/apr-util/src/apr-u
>   *** I have the capability to make that library automatically link in when
>   *** you link to this library.  But I can only do this if you have a
>   *** shared version of the library, which you do not appear to have.
> 
>   *** Warning: This system can not link to static lib archive 
> /home/bobbybrasko/vigilant/apr/apr-1.3.0-cvs
>   *** I have the capability to make that library automatically link in when
>   *** you link to this library.  But I can only do this if you have a
>   *** shared version of the library, which you do not appear to have.
>   libtool: link: warning: undefined symbols not allowed in i686-pc-mingw32 
> shared libraries
>   gawk -f 
> /home/bobbybrasko/vigilant/apr/apr-1.3.0-cvs/build-1/make_exports.awk 
> /home/bobbybrasko/log4cxx/
>   gawk -f 
> /home/bobbybrasko/vigilant/apr/apr-1.3.0-cvs/build-1/make_var_export.awk 
> /home/bobbybrasko/log4c
>   gcc -E -DHAVE_CONFIG_H -D_LARGEFILE64_SOURCE   
> -I/home/bobbybrasko/log4cxx/apr-util/src/apr-util/include
>   gcc -E -DHAVE_CONFIG_H -D_LARGEFILE64_SOURCE   
> -I/home/bobbybrasko/log4cxx/apr-util/src/apr-util/include
>   sed 's,^\(location=\).*$,\1installed,' < apu-1-config > apu-config.out
>   make[1]: Leaving directory `/home/bobbybrasko/log4cxx/apr-util/src/apr-util'
> 
> Any ideas?

Also,

$ objdump -t 
/cygdrive/c/msys/1.0/home/bobbybrasko/log4cxx/apr-util/src/prefixdir/lib/libexpat.a|
 \
  grep XML_ParserFree
[ 81](sec  1)(fl 0x00)(ty  20)(scl   2) (nx 0) 0x00001ec0
_XML_ParserFree

So the symol is there, and that library is being linked in. 

Bob Rossi