+ /* In fact, nobody examines defpath in code paths where
+ * it's been set by us -- the uses in the source tree are:
+ * 1 sbr/context_read.c uses it only after setting it itself
+ * 2 uip/install_mh.c uses it only after setting it itself
+ * 3 uip/mshcmds.c and uip/mark.c print it if given the -debug switch
+ * A worthwhile piece of code cleanup would be to make 1 and
+ * 2 use a local variable and just delete 3.
+ *
+ * Similarly, context and ctxpath are not really used
+ * outside the context_* routines. It might be worth combining
+ * them into one file so the variables can be made static.
+ */
+
+ /* We set context to NULL to indicate that no context file
+ * is to be read. (Using /dev/null doesn't work because we
+ * would try to lock it, which causes timeouts with some
+ * locking methods.)
+ */
+ defpath = context = NULL;