gentoo ebuild question

Hi,

I am interested in trying out SableVM. Since my distro is Gentoo, I
found the ebuild for building SableVm from SVN
(http://bugs.gentoo.org/show_bug.cgi?id=72988).  However, when I try
to build, I get an error that is probably a result of my setup.  I'm
wondering what I need to do to get it to work.  I have a ~x86 system. 
My relevant USE flags are: -debug +gtk

The last part of my exception/build output is:

 * subversion update start -->
 *    update from: svn://svn.sablevm.org/sablevm/branches/staging
Skip updating...
 *     updated in: /usr/portage/distfiles/svn-src/sablevm/staging
 *      copied to: /var/tmp/portage/sablevm-svn-20041129-r1/work

 * begin bootstrap -->
 *    bootstrap with commands:                  cd
/var/tmp/portage/sablevm-svn-20041129-r1/work &&             mv
staging sablevm-20041129 &&          cd sablevm-20041129 &&           
  sed -i s:staging+:staging-sablevm-svn-20041129+: configure.ac &&    
           ./autogen.sh
configure.ac:12: warning: do not use m4_patsubst: use patsubst or m4_bpatsubst
aclocal.m4:546: AM_CONFIG_HEADER is expanded from...
configure.ac:12: the top level
configure.ac:413: warning: do not use m4_regexp: use regexp or m4_bregexp
aclocal.m4:559: _AM_DIRNAME is expanded from...
configure.ac:413: the top level
configure.ac:12: warning: do not use m4_patsubst: use patsubst or m4_bpatsubst
aclocal.m4:546: AM_CONFIG_HEADER is expanded from...
configure.ac:12: the top level
configure.ac:413: warning: do not use m4_regexp: use regexp or m4_bregexp
aclocal.m4:559: _AM_DIRNAME is expanded from...
configure.ac:413: the top level
automake-1.5: configure.ac: `AM_INIT_AUTOMAKE' must be used
automake-1.5: configure.ac: installing `./install-sh'
automake-1.5: configure.ac: installing `./mkinstalldirs'
automake-1.5: configure.ac: installing `./missing'
automake-1.5: configure.ac: installing `./depcomp'

!!! ERROR: dev-java/sablevm-svn-20041129-r1 failed.
!!! Function subversion_bootstrap, Line 226, Exitcode 1
!!! subversion.eclass: can't eval ESVN_BOOTSTRAP.
!!! If you need support, post the topmost build error, NOT this status message.


Thanks for any pointers, Kevin