When anything libtcl (bug #247282) this will fail, and we're only finding out
the version of the library anyway, so why not use TCL_VER, which is found using
a slightly less fishy method. -JeR

--- a/configure
+++ b/configure
@@ -98,8 +98,7 @@
 fi
 if [ -n $USE_TCL ]
 then
-	LIBPOSTFIX=`ls -1 /usr/local/lib/ /usr/lib | grep 'libtcl[0-9]' | grep so | sed -e 's/\.so.*//g' -e 's/libtcl//g' | sort -r | head -1`
-	TCL_LIB="-ltcl${LIBPOSTFIX} -lm -lpthread"
+	TCL_LIB="-ltcl${TCL_VER} -lm -lpthread"
 fi
 
 #