bootstrapping Ada: how to get shared libgnat?

[S11001001]

After a couple of make bootstraps, built against act-europe's binaries, 
I have successfully bootstrap a working Ada toolchain. However, I have 
one more bit of trouble: How do I build *only* shared libraries, or at 
least make them the default? I found a gnatlib-shared target in 
gcc/Makefile, used it, failed, dropped libaddr2line from the act-europe 
distribution into my lib directory, tried again, it worked. After 
installation, it continued to use the static libs, so I moved them out 
of the way, and got

/home/sc87/lib/gcc-lib/i386-redhat-linux-gnu/3.2/adalib//libgnat.so: 
undefined reference to `xstrdup'
collect2: ld returned 1 exit status
gnatlink: cannot call /home/sc87/bin/gcc
gnatmake: *** link failed.

BTW, if I get this all working, I'll post a doc, if you like.

-- 
Stephen Compall
DotGNU `Contributor' -- http://dotgnu.org

I hate to break it to you, but there is no God.
	-- RMS