Re: Problems with using libtool dependencies in opcodes

[Daniel Jacobowitz <drow at mvista dot com>]

On Tue, Mar 09, 2004 at 12:41:02AM -0300, Alexandre Oliva wrote:
> On Dec 22, 2003, Daniel Jacobowitz <drow@mvista.com> wrote:
> 
> > This problem:
> >   http://sources.redhat.com/ml/binutils/2003-06/msg00025.html
> > is still present, and it's causing me a real headache.
> 
> > I had hopes that the latest version of libtool would fix it, so I did a
> > hack-job to get all of binutils using the new version and tried again.  What
> > we used to get was a command like this (roughly):
> 
> > gcc -shared  .libs/dis-buf.o .libs/disassemble.o .libs/dis-init.o \
> >   .libs/i386-dis.o  -L/opt/src/binutils/inst-tmp/obj/libiberty/pic \
> >   -Wl,--rpath -Wl,/usr/local/lib -L/usr/local/lib -lbfd \
> >   -Wl,-soname -Wl,libopcodes-2.14.90.so -o .libs/libopcodes-2.14.90.so
> 
> 
> > Now we get:
> 
> > gcc -shared  .libs/dis-buf.o .libs/disassemble.o .libs/dis-init.o \
> >   .libs/i386-dis.o  -L/opt/src/binutils/inst-tmp/obj/libiberty/pic \
> >   -L/opt/src/binutils/inst-tmp/inst/usr/local/lib -L/usr/local/lib -lbfd \
> >   -Wl,-soname -Wl,libopcodes-2.14.90.so -o .libs/libopcodes-2.14.90.so
> 
> > That fixes the immediate problem but opens up a whole new can of worms.  By
> > adding -L$libdir to the path, my cross compiler configuration starts trying
> > to open /usr/lib/libc.so, which points it to /lib/libc.so.6.
> 
> And why are you configuring the cross toolchain to be installed in
> /usr/local anyway?  I think this is the root of the problem.  You
> don't want libraries for the host to be installed in the same dir as
> libraries for the build machine, do you?

This is not a cross toolchain.  It's a host-x-host toolchain.  I don't
build my cross toolchains with --enable-shared, because they absolutely
must be relocatable so rpath is right out; I'm building something to
live on my target machine with its shared libraries installed in a
system directory.

It's the host != build that is causing the problem, since libtool
insists on putting host directories in link commands on the build
machine.

-- 
Daniel Jacobowitz
MontaVista Software                         Debian GNU/Linux Developer