Index: opkg-9c97d5ecd795709c8584e972bfdf3aee3a5b846d/libopkg/opkg_install.c
===================================================================
--- opkg-9c97d5ecd795709c8584e972bfdf3aee3a5b846d.orig/libopkg/opkg_install.c	2014-09-07 22:06:37.875956909 +0200
+++ opkg-9c97d5ecd795709c8584e972bfdf3aee3a5b846d/libopkg/opkg_install.c	2014-09-07 22:10:30.579952951 +0200
@@ -1463,10 +1463,11 @@
                /* removing files from old package, to avoid ghost files */
                remove_data_files_and_list(old_pkg);
                remove_maintainer_scripts(old_pkg);
+	       pkg->is_upgrade = 1;
 	  }
 
 
-	  opkg_msg(INFO, "Installing maintainer scripts.\n");
+	  opkg_msg(INFO, "%s maintainer scripts.\n", (pkg->is_upgrade) ? ("Upgrading") : ("Installing"));
 	  if (install_maintainer_scripts(pkg, old_pkg)) {
 		opkg_msg(ERROR, "Failed to extract maintainer scripts for %s."
 			       " Package debris may remain!\n",
Index: opkg-9c97d5ecd795709c8584e972bfdf3aee3a5b846d/libopkg/pkg.c
===================================================================
--- opkg-9c97d5ecd795709c8584e972bfdf3aee3a5b846d.orig/libopkg/pkg.c	2014-09-07 22:06:37.863956909 +0200
+++ opkg-9c97d5ecd795709c8584e972bfdf3aee3a5b846d/libopkg/pkg.c	2014-09-07 22:09:09.387954332 +0200
@@ -1285,6 +1285,12 @@
      setenv("PKG_ROOT",
 	    pkg->dest ? pkg->dest->root_dir : conf->default_dest->root_dir, 1);
 
+	if (pkg->is_upgrade)
+		setenv("PKG_UPGRADE", "1", 0);
+	else
+		setenv("PKG_UPGRADE", "0", 0);
+
+
      if (! file_exists(path)) {
 	  free(path);
 	  return 0;
Index: opkg-9c97d5ecd795709c8584e972bfdf3aee3a5b846d/libopkg/pkg.h
===================================================================
--- opkg-9c97d5ecd795709c8584e972bfdf3aee3a5b846d.orig/libopkg/pkg.h	2014-03-21 16:56:11.000000000 +0100
+++ opkg-9c97d5ecd795709c8584e972bfdf3aee3a5b846d/libopkg/pkg.h	2014-09-07 22:09:26.315954044 +0200
@@ -184,6 +184,7 @@
      /* this flag specifies whether the package was installed to satisfy another
       * package's dependancies */
      int auto_installed;
+     int is_upgrade;
 };
 
 pkg_t *pkg_new(void);