[xcrysden] fatal error on X11/Xlib.h

[sara yzdn]

Hello

I am trying to install xcrysden source package on on fedora 18, I have
followed below steps:

1. $ tar xvf xcrysden-1.5.53.tar.gz
2. $ cd xcrysden-1.5.53/
3. $ XCRYSDEN_TOPDIR=/usr/local/xcrysden
4. $ XCRYSDEN_SCRATCH=/usr/local/xcrysden_scratch
5. $ mkdir /usr/local/xcrysden_scratch
6. $ cp ./system/Make.sys-shared Make.sys
7. $ make all

and I am receiving the following error:

/home/Packages/xcrysden-1.5.53/external/src/tk8.5.11/unix/../generic/tk.h:76:23:
fatal error: X11/Xlib.h: No such file or directory
compilation terminated.
make[2]: *** [tk3d.o] Error 1
make[2]: Leaving directory
`/home/sara/Packages/xcrysden-1.5.53/external/src/tk8.5.11/unix'
make[1]: *** [tk] Error 2
make[1]: Leaving directory
`/home/sara/Packages/xcrysden-1.5.53/external/src'
make: *** [tk] Error 2 *

*
*Please kindly let me know how to solve this problem.
*
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