checking for Tcl library... found /usr/lib/libtcl8.0.so.1
checking for Tcl header... found /usr/local/include/tcl.h
checking whether the Tcl system has changed... yes
checking for Tcl version... 8.3
checking for Tcl patch level... 8.3.4
checking for Tcl_Free in -ltcl8.0... no
checking for TclpFinalizeThreadData in -ltcl8.0... no
There's a clip from eggdrop 1.6.10 ./configure
I had tcl 8.3 previously, and seems there are some traces of it left on my system. This is propably causing a compile error.
Where does eggdrop look for TCL version? So I can go and remove the tcl8.3 left overs.
Read though configure.in and other configureation files, you will find the section of Tcl, and be able to loacte it's search locations.
Note, every directory that is in the search list, may contain Tcl, but eggdrop stops searching after the first found copy, so you may need to keep digging.
Note, if you read the scripts corectly, you will notice that it doesn't quickly sweep the directory. It actualy goes to each directory, and ch3ecks for more than 1 file name, once again, stopping at the first match.