1 files changed, 8 insertions, 0 deletions
diff --git a/apt-pkg/packagemanager.h b/apt-pkg/packagemanager.h
index d72790b6e..34b4b529f 100644
--- a/apt-pkg/packagemanager.h
+++ b/apt-pkg/packagemanager.h
@@ -45,6 +45,12 @@ class pkgSourceList;
 class pkgOrderList;
 class pkgRecords;
 
+namespace APT {
+   namespace Progress {
+      class PackageManager;
+      class PackageManagerProgressFd;
+   }
+}
 
 class pkgPackageManager : protected pkgCache::Namespace
 {
@@ -93,6 +99,8 @@ class pkgPackageManager : protected pkgCache::Namespace
    virtual bool Remove(PkgIterator /*Pkg*/,bool /*Purge*/=false) {return false;};
 #if (APT_PKG_MAJOR >= 4 && APT_PKG_MINOR >= 13)
    virtual bool Go(APT::Progress::PackageManager * /*progress*/) {return true;};
+   // compat
+   virtual bool Go(int /*statusFd*/=-1) {return true;};
 #else
    virtual bool Go(int /*statusFd*/=-1) {return true;};
 #endif