Do not use an unpatched autoconf 2.65 to generate release tarball

With released 0.7.0, on Freebsd 8.2:
$ ./configure
...
checking for int16_t... no
checking for int32_t... no
checking for int64_t... no
checking for int8_t... no

When they are obviously available (uint32_t is found...).

There is a nasty regression in autoconf 2.65. Many distribution carry a patch for the fix (on Debian, autoconf-2.65-3 I believe). The upstream fix is:
http://git.savannah.gnu.org/cgit/autoconf.git/commit/?id=83ee5bc4

Not sure what exact version/build of autoconf-2.65 is used to generate the tarball, but please upgrade.

A workaround is to make sure you have a recent enough version of autoconf and run:
$ autoconf
$ ./configure

Thanks.