Please describe the problem:
vte's code for finding the X libraries munges with the results of AC_PATH_XTRA
in unnecessary and incorrect ways.

The premise for this munging is that "On some OSs, AC_PATH_XTRA doesn't work
right(?)...".  Nevermind that on such an operating system, gtk, libgnomeui, and
a host of other programs wouldn't compile, so it's unlikely that a user of said
operating system would get to the point of building vte.

As to what specifically can go wrong: vte uses the internal variables
ac_x_includes and ac_x_libraries to reset X_CFLAGS and X_LIBS instead of using
the values resulting from AC_PATH_XTRA.  The AC_PATH_XTRA macro does not set
those internal variables in all cases; for instance, if x_includes and
x_libraries are set in config.site, it simply uses those values and does not
compute its own.

Please remove the eleven lines following AC_PATH_XTRA (from "X_CFLAGS=" to "fi")
and the preceding comment, and all should be well again.


Steps to reproduce:
1. Create a config.site which sets x_includes and x_libraries.
2. Configure vte.



Actual results:
The freetype test fails due to CFLAGS and LIBS having incorrect values for the X
flags.

Expected results:


Does this happen every time?


Other information: