6.4-BETA1: libpgtcl.so / Tcl version?

It fails to link against Tcl 8.0 (Linux 2.0.35, gcc-2.7.2.1):

gcc -I../../include -I../../backend   -I/usr/include/termcap -O2  -Wall -Wmissing-prototypes -I/usr/X11R6/include
-I../../interfaces/libpgtcl-o pgtclsh pgtclAppInit.o \ 
  -L../../interfaces/libpgtcl -lpgtcl -L../../interfaces/libpq -lpq -ltcl8.0 -lm -L/usr/lib/termcap -ldl -lm -lbsd
-lreadline-lhistory -ltermcap -lncurses  -export-dynamic  
../../interfaces/libpgtcl/libpgtcl.so: undefined reference to `Tcl_FileReady'
../../interfaces/libpgtcl/libpgtcl.so: undefined reference to `Tcl_GetFile'
../../interfaces/libpgtcl/libpgtcl.so: undefined reference to `Tcl_WatchFile'
make[2]: *** [pgtclsh] Error 1
make[2]: Leaving directory `/usr/src/packages/BUILD/pgsql/src/bin/pgtclsh'
make[1]: *** [all] Error 2
make[1]: Leaving directory `/usr/src/packages/BUILD/pgsql/src/bin'
make: *** [all] Error 2
make: Leaving directory `/usr/src/packages/BUILD/pgsql/src'
Bad exit status

Linking against Tcl 7.6 is okay.  I didn't find a hint, which Tcl
version one should use.

pgsql/src/interfaces/libpgtcl/README talks about libpgtcl.doc -- but
this file (libpgtcl.doc) isn't there.

Just for the record, the end user documentation (.tar.gz and .ps.gz
files) isn't up-to-date.  The SGML sources are newer.

--
Karl Eichwalder          S.u.S.E. GmbH          Fax       +49-911-3206727
ke@suse.de               Gebhardtstrasse 2      Mo & Th      13:00-18:00:
http://www.suse.de/~ke/  90762 Fuerth, Germany  Hotline   +49-911-3247130