i found they followed lines on the .configure
"
  --disable-libtool-lock  avoid locking (might break parallel builds)
  --enable-gio-unix       Enable checking for GIO-Unix features
                          (default=[yes])
  --disable-gio-unix      Disable checking for GIO-Unix features
  --enable-gio-unix       Enable checking for GIO-Unix too new
                          (default=[yes])
  --disable-gio-unix      Disable checking for GIO-Unix too new
  --enable-gtk-doc        use gtk-doc to build documentation [[default=no]]
  --enable-gtk-doc-html   build documentation in html format [[default=yes]]

"
i think there one patch was going worst, 
twice enable-gio-unix and disable ???
should be there not a other option like glib or so??? i not knowing exact, but i think
on the versions before 4.8 there a other option was written...