2008-02-09 Robert Millan <rmh@aybabtu.com>

* configure.ac: Probe for `help2man'.
        * Makefile.in (builddir): New variable.
        (HELP2MAN): Likewise.  Set to `true' when @HELP2MAN@ doesn't provide it,
        or otherwise add a few flags/options to it.
        (install-local): For every executable utility or script that is
        installed, invoke $(HELP2MAN) to install a manpage based on --help
        output.

        * util/i386/pc/grub-install.in: Move down `update-grub_lib' sourcing, so
        that it doesn't prevent --help from working in build tree.

        * util/i386/pc/grub-mkrescue.in (usage): Replace `grub-devel@gnu.org'
        with `bug-grub@gnu.org'.
        * util/powerpc/ieee1275/grub-mkrescue.in (usage): Likewise.
        * util/update-grub.in (usage): New function.
        Implement proper argument check, with support for --help and --version
        (as well as existing -y).

configure.ac

@@ -115,8 +115,9 @@ AC_PROG_INSTALL
 AC_PROG_AWK
 AC_PROG_MAKE_SET
 
-# This is not a "must".
+# These are not a "must".
 AC_PATH_PROG(RUBY, ruby)
+AC_PATH_PROG(HELP2MAN, help2man)
 
 #
 # Checks for host programs.