[rock-user] Xfree86 & expat

Hi Rene et al,

It cost me some time to find out that the reason for my build failure
of xfree86 is that `xf_config()' in `xf_config.sh' *always* sets
`HasExpat' to `YES', which means that it tries to use an extern expat
lib. I didn't have that external lib installed, and so it didn't make
any sense to me to set it at all, and so was quite a bit stunned. :-)

Later then I found the rene/expat package, which probably explains all
that and its installation will hopefully fix the build error. But
nontheless I think that I faced an issue, because the assumption that
rene/expat is installed should not be made.

So could you please change `xf_config()' to check whether or not
rene/expat is built, and determine the value for HasExpat by the result.



-- tcr (tcr\@freebits\.de)  ``Ho chresim'eidos uch ho poll'eidos sophos''