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diff --git a/apt-pkg/versionmatch.h b/apt-pkg/versionmatch.h
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+++ b/apt-pkg/versionmatch.h
@@ -0,0 +1,77 @@
+// -*- mode: cpp; mode: fold -*-
+// Description								/*{{{*/
+/* ######################################################################
+
+   Version Matching
+
+   This module takes a matching string and a type and locates the version
+   record that satisfies the constraint described by the matching string.
+
+     Version: 1.2*
+     Release: o=Debian,v=2.1*,c=main
+     Release: v=2.1*
+     Release: a=testing
+     Release: n=squeeze
+     Release: *
+     Origin: ftp.debian.org
+
+   Release may be a complex type that can specify matches for any of:
+      Version (v= with prefix)
+      Origin (o=)
+      Archive (a=) eg, unstable, testing, stable
+      Codename (n=) e.g. etch, lenny, squeeze, sid
+      Label (l=)
+      Component (c=)
+      Binary Architecture (b=)
+   If there are no equals signs in the string then it is scanned in short
+   form - if it starts with a number it is Version otherwise it is an
+   Archive or a Codename.
+
+   Release may be a '*' to match all releases.
+
+   ##################################################################### */
+									/*}}}*/
+#ifndef PKGLIB_VERSIONMATCH_H
+#define PKGLIB_VERSIONMATCH_H
+
+#include <apt-pkg/pkgcache.h>
+
+#include <string>
+
+
+class APT_PUBLIC pkgVersionMatch
+{
+   // Version Matching
+   std::string VerStr;
+   bool VerPrefixMatch;
+
+   // Release Matching
+   std::string RelVerStr;
+   bool RelVerPrefixMatch;
+   std::string RelOrigin;
+   std::string RelRelease;
+   std::string RelCodename;
+   std::string RelArchive;
+   std::string RelLabel;
+   std::string RelComponent;
+   std::string RelArchitecture;
+   bool MatchAll;
+
+   // Origin Matching
+   std::string OrSite;
+
+   public:
+
+   enum MatchType {None = 0,Version,Release,Origin} Type;
+
+   bool MatchVer(const char *A,std::string B,bool Prefix) APT_PURE;
+   static bool ExpressionMatches(const char *pattern, const char *string);
+   static bool ExpressionMatches(const std::string& pattern, const char *string);
+   bool FileMatch(pkgCache::PkgFileIterator File);
+   pkgCache::VerIterator Find(pkgCache::PkgIterator Pkg);
+   bool VersionMatches(pkgCache::VerIterator Ver);
+
+   pkgVersionMatch(std::string Data,MatchType Type);
+};
+
+#endif