* added the GNU getopt library, which gets compiled in when getopt_long
    isn't available on the desired platform.
  * replaced the `--warning' flag with the standard cumulative `-v' flag.
    `-v' is like `--warning 3', and `-vvvv' is like `--warning 0'
    (`--warning' is still valid for those used to it)
  * cleaning in configure.in and Makefile.in, the Solaris port now
    builds and runs properly.