Build DDD problems

[kenny chen]

Hi,
??? I fry to build DDD in our linux (RedHat 6.0) but it is fail in
configuration.

checking whether the C++ compiler (c++) accepts -fpermissive... (cached)
no
checking for X... no
checking for Motif... libraries (none), headers in default path
checking for Athena... libraries /usr/X11R6/lib, headers in default path

checking for Xpm... libraries /usr/X11R6/lib, headers in default path
checking for XOpenDisplay in -lX11... no
configure: error: The X11 library '-lX11' could not be found.
????????????????? Please use the configure options '--x-includes=DIR'
????????????????? and '--x-libraries=DIR' to specify the X location.
????????????????? See the files 'config.log' and 'ddd/config.log'
????????????????? for further diagnostics.
configure: error: ./configure failed for ddd

I try to add the configure option --x-includes=/usr/X11R6/include/X11
--x-libraries=/usr/X11R6/lib/X11, but it is useless
I see there have something wrong in DDD/config.log

#include <X11/Intrinsic.h>
#include <Xm/Xm.h>

int main() {
XtToolkitInitialize();
; return 0; }
configure:6765: checking for Athena
configure:6796: c++ -c -g -O2??? conftest.C 1>&5
configure:6788: X11/Intrinsic.h: No such file or directory
configure:6789: X11/Xaw/Text.h: No such file or directory
configure: failed program was:
#line 6786 "configure"
#include "confdefs.h"

Because in "X11" diorectory, the "intrinsic.h" really not exist, deos it
mean we should have these include files?
How do I get these include files and put in "X11" directory?
??????????????????????????????????????????????????????? kenny