Capturing configuration summaries

["Edward Duffy" <eduffy gmail com>]

Some configure scripts will print out a summary at the end, from
freedesktop/glitz eg.

glitz will be compiled with the following backends:
 GLX: yes
 AGL: no
 EGL: no
 WGL: no

When manually configuring software its easy enough to see, but since
garnome automates that process it's difficult to catch.  Would it be
possible for garnome to capture these summaries and drop them into a
file so I can review them later?  It should just be some combination
of tee and tail on configure's stdout, right?