+#include <iostream>
+
+class CommandLine;
+class pkgCacheFile;
+
+APT_PUBLIC bool ShowPackage(CommandLine &CmdL);
+APT_PUBLIC bool DisplayRecordV1(pkgCacheFile &CacheFile, pkgCache::VerIterator const &V, std::ostream &out);
+APT_PUBLIC bool ShowSrcPackage(CommandLine &CmdL);
+APT_PUBLIC bool Policy(CommandLine &CmdL);