libtool: install: error: cannot install `libsvn_subr-1.la' to a directory not ending in /usr/local/lib

SVN users or developers,

I'm hoping someone has run into this during installation of svn 1.2.3:

I'm on Solaris 8 machine:

SunOS ironwood 5.8 Generic_117350-23 sun4u sparc SUNW,Sun-Fire-V240

I downloaded the subversion source tar into /tmp/subversion-1.2.3 and 
did the following:

./configure --prefix /opt
make all
make install

All went well during the configure and make steps (after a few glitches 
that required me to fix up my $PATH up a bit), until the make install step.

Prior to the install, I must "sudo su -" (so I have root permissions and 
environment, then fix my path again).  My current restrictions is that I 
can only write in /opt (not /usr/local).

It appears that libtool requires this libsvn_subr-1.la library to go 
into a directory ending with /usr/local/lib (which I can't write into 
per my system admin):

libtool: install: error: cannot install `libsvn_subr-1.la' to a 
directory not ending in /usr/local/lib

Any ideas?

By the way, per someone else's suggestion,  I've also tried running 
autogen.sh, and I get the following error:  libtoolize not found in path

I'm not sure where libtoolize should be located and/or where I can get it.

Thanks,

Dan