diff -ruN groff-1.20.1/src/roff/troff/env.cpp groff-1.20.1-fixed/src/roff/troff/env.cpp
--- groff-1.20.1/src/roff/troff/env.cpp	2009-01-09 15:25:52.000000000 +0100
+++ groff-1.20.1-fixed/src/roff/troff/env.cpp	2009-11-22 14:40:43.000000000 +0100
@@ -2213,14 +2213,15 @@
      */
     if (curdiv == topdiv && topdiv->before_first_page)
       topdiv->begin_page();
-    macro *m = new macro;
-    m->append_str("devtag:");
+
+    macro m;
+    m.append_str("devtag:");
     for (const char *p = nm; *p; p++)
       if (!invalid_input_char((unsigned char)*p))
-	m->append(*p);
-    m->append(' ');
-    m->append_int(i);
-    return new special_node(*m);
+	m.append(*p);
+    m.append(' ');
+    m.append_int(i);
+    return new special_node(m);
   }
   return 0;
 }
diff -ruN groff-1.20.1/src/roff/troff/input.cpp groff-1.20.1-fixed/src/roff/troff/input.cpp
--- groff-1.20.1/src/roff/troff/input.cpp	2009-01-09 15:25:52.000000000 +0100
+++ groff-1.20.1-fixed/src/roff/troff/input.cpp	2009-11-22 14:40:43.000000000 +0100
@@ -530,6 +530,8 @@
 {
   if (t->is_diversion) {
     div_level--;
+    if (diversion_state)
+      delete diversion_state;
     diversion_state = t->diversion_state;
   }
 }
@@ -4367,6 +4369,7 @@
 	  args += c;
       if (i != limit)
 	args += ' ';
+      delete p;
     }
     if (limit > 0) {
       args += '\0';
@@ -4388,6 +4391,7 @@
       args += '"';
       if (i != limit)
 	args += ' ';
+      delete p;
     }
     if (limit > 0) {
       args += '\0';
@@ -4407,6 +4411,7 @@
       }
       if (input_stack::space_follows_arg(i))
 	args += ' ';
+      delete p;
     }
     if (limit > 0) {
       args += '\0';