The comparison is incorrect, and the check also breaks daily work on
autobuilders and older distros.

This reverts commit dbc4dda7.

Signed-off-by: Guido Trotter <ultrotter@google.com>
Reviewed-by: Iustin Pop <iustin@google.com>

1.11.1 is the version in squeeze and lucid, and we know it works. We
also know that 1.10.1 in hardy and lenny doesn't, nor do 1.10 in etch
and 1.9.6 in dapper. We haven't tested any other version.

With older versions python.m4 is buggy, and results in the package being
built not working on python 2.6 (which uses dist-packages rather than
site-packages as a module directory).

The autogen.sh interpreter is changed to bash, as we need to use the [[
builtin to compare versions with "<". [ doesn't have that functionality,
and we can't of course rely on dpkg, which won't be installed on all
distributions.

Signed-off-by: Guido Trotter <ultrotter@google.com>
Reviewed-by: Iustin Pop <iustin@google.com>

Nowadays we have actual files (tracket by VCS) in autotools/, so we know
the directory exists.

Signed-off-by: Iustin Pop <iustin@google.com>
Reviewed-by: Guido Trotter <ultrotter@google.com>

Reviewed-by: iustinp

Not all distributions have the same version of aclocal, autoconf
or automake. Users can pass the name of a specific executables
via environment variables. Change configure.ac to require at
least autoconf 1.9.

Reviewed-by: iustinp

This patch adds checking for our external python modules at the
./configure stage, as it's better to check than rely on documentation.

The patch adds one autoconf macro from the autoconf macro archive
(http://autoconf-archive.cryp.to)

Reviewed-by: imsnah

Reviewed-by: ultrotter