Installing TK on UNIXware 7.1.1

[Areito]

I tried installing TCL/TK 8.4.5 on a UNIXware 7.1.1 system with an AMD K2 - 600MHz processor.
The TCL8.4.5 installed fine, but I had a few problems with TK8.4.5

Extracting the tar.gz file I encountered the following error relating to password info for jeffh:
# tar -xvf tk8.4.5-src.tar
UX:tar: INFO: blocksize = 20
x tk8.4.5/, 0 bytes, 0 tape blocks
UX:tar: WARNING: Cannot get passwd information for jeffh
UX:tar: WARNING: tk8.4.5/: owner not changed
x tk8.4.5/doc/, 0 bytes, 0 tape blocks

I was able to run "./configure", but after running "make" I got the following errors:
# make
cc -c -O -KPIC -I/tk8.4.5/unix -I/tk8.4.5/unix/../generic -I/tk8.4.5/unix/../bitmaps -I/tcl8.4.5/generic -DHAVE_UNISTD_H=1 -DHAVE_LIMITS_H=1 -DTCL_WIDE_INT_TYPE=long\ long -DHAVE_STRUCT_DIRENT64=1 -DHAVE_STRUCT_STAT64=1 -DHAVE_TYPE_OFF64_T=1 -DSTDC_HEADERS=1 -DHAVE_SYS_TIME_H=1 -DTIME_WITH_SYS_TIME=1 -DHAVE_PW_GECOS=1 -DTCL_NO_DEPRECATED -DUSE_TCL_STUBS /tk8.4.5/unix/../generic/tk3d.c

UX:acomp: ERROR: &quot;/tk8.4.5/unix/../generic/tk.h&quot;, line 96: cannot find include file: <X11/Xlib.h>

UX:acomp: ERROR: &quot;/tk8.4.5/unix/../generic/tk.h&quot;, line 572: Syntax error before or at: Window

UX:acomp: ERROR: &quot;/tk8.4.5/unix/../generic/tk.h&quot;, line 572: function cannot return function or array

UX:acomp: WARNING: &quot;/tk8.4.5/unix/../generic/tk.h&quot;, line 572: function prototype parameters must have types

UX:acomp: ERROR: &quot;/tk8.4.5/unix/../generic/tk.h&quot;, line 575: Syntax error before or at: XEvent

UX:acomp: ERROR: &quot;/tk8.4.5/unix/../generic/tk.h&quot;, line 584: Syntax error before or at: Tk_ClassCreateProc

UX:acomp: ERROR: &quot;/tk8.4.5/unix/../generic/tk.h&quot;, line 584: cannot recover from previous errors

*** Error code 1 (bu21)

UX:make: ERROR: fatal error.



Any ideas, I have TCL/TK 8.0(Binaries from SCO's skunk works) already on this system, but I would to use some of the 8.4 feature.

Thanks!