Can't find X

[Jonathan Villa <jvilla isdesigndev com>]

checking for X... no
configure: error: X is required, but it was either disabled or not
found.
make[5]: *** [configure-work/main.d/xrender-0.8.3/configure] Error 1


I'm assuming that this is a common problem?  I've gotten past some of
the others I have encountered during installation, but now I can't seem
to get past this one because the locations listed in the xrender
configure file are correct.