--- tcl8.5a6/unix/tcl.m4	2007-04-26 20:33:51.000000000 +0300
+++ tcl8.5a6f/unix/tcl.m4	2007-09-07 21:57:01.000000000 +0300
@@ -1425,6 +1425,8 @@ dnl AC_CHECK_TOOL(AR, ar)
 	    # get rid of the warnings.
 	    #CFLAGS_OPTIMIZE="${CFLAGS_OPTIMIZE} -D__NO_STRING_INLINES -D__NO_MATH_INLINES"
 
+	    TCL_SHLIB_LD_EXTRAS="-Wl,-soname,\${TCL_LIB_FILE}.0"
+
 	    SHLIB_LD='${CC} -shared ${CFLAGS} ${LDFLAGS}'
 	    DL_OBJS="tclLoadDl.o"
 	    DL_LIBS="-ldl"