Tcl/Tk and Xlib error building scilab

[Huub <huubvanniekerk%gmail.com@localhost>]

Hi,

Running NBSD 4.0.1, I'm building scilab from pkgsrc-current. This is what 
I get:

/usr/pkgsrc/math/scilab/work/.buildlink/lib/libXaw3d.so: warning: warning: 
tmpnam() possibly used unsafely, use mkstemp() or mkdtemp()
making all in examples...
Type "make tests" in examples directory
  to test link and addinter features
making man in man...
Creating html help files
/usr/pkgsrc/math/scilab/work/scilab-4.1/bin/scilab -l eng  -nwni  -e 
"xmltohtml([],[],'html-rev.xsl');quit" -args -nouserstartup
Xlib: connection to "unix:0.0" refused by server
Xlib: No protocol specified


Tcl Error  : Tk_Init
 
Xlib: connection to "unix:0.0" refused by server
Xlib: No protocol specified

Error: Can't open display: unix:0.0
*** Error code 1

Stop.
make: stopped in /usr/pkgsrc/math/scilab/work/scilab-4.1/man/eng
Creating html help files
/usr/pkgsrc/math/scilab/work/scilab-4.1/bin/scilab -l fr  -nwni  -e 
"xmltohtml([],[],'html-rev.xsl');quit" -args -nouserstartup
Xlib: connection to "unix:0.0" refused by server
Xlib: No protocol specified


Tcl Error  : Tk_Init
 
Xlib: connection to "unix:0.0" refused by server
Xlib: No protocol specified

Error: Can't open display: unix:0.0
*** Error code 1

Stop.
make: stopped in /usr/pkgsrc/math/scilab/work/scilab-4.1/man/fr
*** Error code 1

Stop.
make: stopped in /usr/pkgsrc/math/scilab/work/scilab-4.1/man
*** Error code 1

Stop.
make: stopped in /usr/pkgsrc/math/scilab/work/scilab-4.1
*** Error code 1

Stop.
make: stopped in /usr/pkgsrc/math/scilab
*** Error code 1

Stop.
make: stopped in /usr/pkgsrc/math/scilab
Bloemfontein# 

Can somebody please tell me what may be wrong?

Thanks for helping out.