Expected specifier-qualifier-list error compiling gtk+-2.12.1

["G. Chris Hofmann" <ghofmann pair com>]

Greetings,

I have had this error when compiling gtk+-2.12.1 for quite some time now
and have searched for answers quite extensively with no success.  I have
tried reverting the gtk+ version, as well, with no luck.

/usr/include/X11/extensions/Xrandr.h:88: error: expected
specifier-qualifier-list before 'Connection'

I am not entirely certain how to fix this, so any assistance or
suggestions are greatly appreciated.  I am running Debian unstable,
however, have had this error for several months, at least.

Thanks for any clues or assistance anybody can provide!

Cheers,
Chris