diff -ru aptitude_0.4.11.11.orig/src/generic/apt/matchers.cc aptitude_0.4.11.11.orig+iPhone/src/generic/apt/matchers.cc
--- aptitude_0.4.11.11.orig/src/generic/apt/matchers.cc	2008-11-20 03:17:12.000000000 +0000
+++ aptitude_0.4.11.11.orig+iPhone/src/generic/apt/matchers.cc	2009-07-07 09:48:40.000000000 +0000
@@ -4289,6 +4289,9 @@
   return real_matcher->get_match(pkg, cache, records, stack);
 }
 
+namespace
+{
+
 class pkg_const_matcher : public pkg_matcher_real
 {
   pkgCache::PkgIterator match_pkg;
@@ -4333,6 +4336,8 @@
   }
 };
 
+}
+
 pkg_matcher *make_const_matcher(const pkgCache::PkgIterator &pkg)
 {
   return new pkg_const_matcher(pkg);