make compile
diff --git a/src/cmd/mpm/range.h b/src/cmd/mpm/range.h
index 401035a..54994cd 100644
--- a/src/cmd/mpm/range.h
+++ b/src/cmd/mpm/range.h
@@ -18,6 +18,7 @@
public:
range() { first = 0; accumV = 0; }
range(slug *p) { first = p; accumV = 0; }
+ virtual ~range() { }
char *headstr() {
return first ? first->headstr() : (char*)""; }
char *typename() { return first->typename(); }
@@ -307,6 +308,7 @@
extern stream ptlist, btlist; // page titles
+#undef INFINITY
#define INFINITY 1000001
// A queue is a distinguished kind of stream.
