After I built HOL4, I opened HOLDIR/help/HOLindex.html in my browser,
and I clicked on the "Theory Graph" link.  It was broken.

Then I read this:

 [70+0]hol4-source$ cat help/theorygraph/README 
This is the "help/theorygraph" directory for HOL.  A theory dependency
graph will be placed here when you build HOL (provided the Graphviz
dot tool, cf. http://www.graphviz.org/, is available on your system).

I most certainly do have graphviz & dot.

So, thinking the configure and build process somehow misfired, I did

 [72+0]hol4-source$ find . -type f | xargs grep -w dot

and

 [73+0]hol4-source$ find . -type f | xargs grep -w theorygraph

Neither search returned with anything that seemed to actually look for
the dot program let alone execute it.  So, now it seems to me the README
just lies, and the graph is not built, period.  Am I right?

-- 
Ian Zimmerman
gpg public key: 1024D/C6FF61AD
fingerprint: 66DC D68F 5C1B 4D71 2EE5  BD03 8A00 786C C6FF 61AD
http://www.gravatar.com/avatar/c66875cda51109f76c6312f4d4743d1e.png
Rule 420: All persons more than eight miles high to leave the court.

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