See tcl section of my /etc/csh.cshrc for explanation. In dir. ~jhs/src/bsd/fixes/FreeBSD/src/gen/lib/libtcl/ I used to have sym link tcl.h@ -> /usr/include/tcl.h but removerd it to avoid web errors & complaint from tar --dereference In dir. ~/src/bsd/fixes/FreeBSD/src/gen/contrib/tcl/generic/ I had tclInt.h@ -> /usr/include/tcl/generic/tclInt.h