[Gtk-sharp-list] configure.in.in in head

[John Luke]

Hello,
	Two little things with configure.in.in in head:
1. it uses -g instead of -debug which won't work with other C#
compilers, and is now a warning in mcs. I was gonna just change this and
commit but decided against it.
2. the --with-crosspkgdir section doesn't work for me:
./bootstrap
**Warning**: I am going to run `configure' with no arguments.
If you wish to pass any to it, please specify them on the
`./bootstrap' command line.

Running libtoolize...
Running aclocal  ...
Running autoheader...
Running automake --gnu  ...
Running autoconf ...
configure.in:69: error: possibly undefined macro: PKG_PATH
      If this token and others are legitimate, please use
m4_pattern_allow.
      See the Autoconf documentation.

removing it works (autoconf 2.59) but I assume you can fix it other
ways.