* configure.ac: Require at least texinfo 4.4.
* configure: Regenerate.
* doc/install.texi (Tools/packages necessary for building GCC):
Update required version of texinfo to at least 4.4.
(Installing GCC: Building): Update required version of texinfo
to at least 4.4.
(Installing GCC: Final installation): Update required version
of texi2dvi to at least 4.4.
(Host/target specific installation notes for GCC): Update required
version of texinfo to at least 4.4.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@107465 138bc75d-0d04-0410-961f-82ee72b054a4