I see 3.31.1 (tried with both, "fossil update" and "fossil update release"). I can compile the tcl interface with just configuring and then doing: make tclsqlite3.c cc -o tclsqlite3.o -I/usr/opt/tcl/include -I../sqlite -fPIC -c tclsqlite3.c cc -shared -o libtclsqlite3.so tclsqlite3.o -lpthread -L/usr/opt/tcl/lib -ltclstub8.6