why only automake-1.7

[Halton Huo <Halton Huo Sun COM>]

Hi

I'm trying to build gtk from trunk code. found it only allows
automake-1.7, could somebody tell me why? I have automake-1.10
installed.

$./autogen.sh --prefix=/usr
./autogen.sh: automake-1.7: not found

You must have automake 1.7.x installed to compile Gtk+.
Install the appropriate package for your distribution,
or get the source tarball at http://ftp.gnu.org/gnu/automake/

Thanks,
Halton.