tkConfig.sh vs. ./configure

See:

./configure     --prefix=/usr/lib/postgresql \               --with-unixodbc \               --enable-odbc \
  --with-openssl \               --with-pam \               --with-python \               --with-perl \
--with-tcl\               --enable-nls \               --enable-multibyte \               --enable-recode \
 --enable-locale
 
[--cut--]checking for tclsh... /usr/bin/tclshchecking for tclConfig.sh... /usr/lib/tcl8.3/tclConfig.shchecking for
tkConfig.sh...noconfigure: error: file `tkConfig.sh' is required for Tk
 
..hmm, I try:
$ ls -la /usr/lib/tk8.3/tkConfig.sh-rw-r--r--    1 root     root         3194 Oct 27 10:00/usr/lib/tk8.3/tkConfig.sh
If I define directly path by --with-tkconfig=/usr/lib/tk8.3 it pass. But why is it needful for tkConfig.sh if it's at
verysimular place as tclConfig.sh?
 
/usr/lib/tcl8.3/tclConfig.sh/usr/lib/tk8.3/tkConfig.sh
Comments?
       Karel

-- Karel Zak  <zakkr@zf.jcu.cz>http://home.zf.jcu.cz/~zakkr/C, PostgreSQL, PHP, WWW, http://docs.linux.cz,
http://mape.jcu.cz