meanwhile pulls in wrong glib headers

[nerdling (Jeremy Lavergne)]

meanwhile attempts to directly include glib2 headers files, which glib2 explicitly marks as a no-no. Since meanwhile is ancient, we might simply remove this port.

ProductName: Mac OS X ProductVersion: 10.7.3 BuildVersion: 11D50b Xcode 4.3.2 Build version 4E2002

:info:build In file included from channel.c:22:
:info:build /opt/local/include/glib-2.0/glib/ghash.h:28:2: error: #error "Only <glib.h> can be included directly."
:info:build #error "Only <glib.h> can be included directly."
:info:build  ^
:info:build In file included from channel.c:23:
:info:build /opt/local/include/glib-2.0/glib/glist.h:28:2: error: #error "Only <glib.h> can be included directly."
:info:build #error "Only <glib.h> can be included directly."
:info:build  ^
:info:build In file included from channel.c:30:
:info:build In file included from ./mw_message.h:25:
:info:build /opt/local/include/glib-2.0/glib/glist.h:28:2: error: #error "Only <glib.h> can be included directly."
:info:build #error "Only <glib.h> can be included directly."
:info:build  ^
:info:build In file included from channel.c:33:
:info:build In file included from ./mw_util.h:26:
:info:build /opt/local/include/glib-2.0/glib/ghash.h:28:2: error: #error "Only <glib.h> can be included directly."
:info:build #error "Only <glib.h> can be included directly."
:info:build  ^
:info:build In file included from channel.c:33:
:info:build In file included from ./mw_util.h:27:
:info:build /opt/local/include/glib-2.0/glib/glist.h:28:2: error: #error "Only <glib.h> can be included directly."
:info:build #error "Only <glib.h> can be included directly."
:info:build  ^
:info:build 5 errors generated.