version `2.2.3a' doesn't follow Gnits standards

[Olly Betts]

With autoconf 2.61 and automake 1.10.1, both built from source, and CVS libtool
I get an error from "make" after "./bootstrap" and "./configure":

$ make
cd . && /bin/bash /home/olly/cvs/libtool/libltdl/config/missing --run
aclocal-1.10 -I libltdl/m4
 cd . && /bin/bash /home/olly/cvs/libtool/libltdl/config/missing --run
automake-1.10 --gnits 
configure.ac:33: version `2.2.3a' doesn't follow Gnits standards
make: *** [Makefile.in] Error 1

The regexp which automake 1.10.1 uses to check the version is this, which
indeed doesn't match 2.2.3a:

  my $GNITS_VERSION_PATTERN = '\d+\.\d+([a-z]|\.\d+)?(-[A-Za-z0-9]+)?';

The simple fix is to drop "gnits" from AM_INIT_AUTOMAKE in configure.ac, but
perhaps the version number is actually incorrect.

Cheers,
    Olly