This makes certain changes if you are bold enough to use a different
installation prefix than /usr/dt:
- fix MANDIR output from dtsearchpath
- missing dtopn_* links
- /usr/dt/bin is always needed
- fix DTKORNSHELL output for dtlp
Remove a pile of old SGML stuff we no longer need in dtdocbook since
we use NSGMLS.
Use some TCL macros from m4/tcl.m4 to loacate and use information in
the tclConfig.sh script installed with TCL. I had to modify it to
export TCL_INCLUDE_SPEC, which was present but not imported.
Jon Trulson