diff --git a/poky/scripts/lib/devtool/standard.py b/poky/scripts/lib/devtool/standard.py
index 4b50e3c..c98bfe8 100644
--- a/poky/scripts/lib/devtool/standard.py
+++ b/poky/scripts/lib/devtool/standard.py
@@ -520,7 +520,9 @@
         for event in history:
             if not 'flag' in event:
                 if event['op'].startswith((':append[', ':prepend[')):
-                    extra_overrides.append(event['op'].split('[')[1].split(']')[0])
+                    override = event['op'].split('[')[1].split(']')[0]
+                    if not override.startswith('pn-'):
+                        extra_overrides.append(override)
         # We want to remove duplicate overrides. If a recipe had multiple
         # SRC_URI_override += values it would cause mulitple instances of
         # overrides. This doesn't play nicely with things like creating a
@@ -1604,6 +1606,19 @@
     if not os.path.exists(append):
         raise DevtoolError('unable to find workspace bbappend for recipe %s' %
                            recipename)
+    srctreebase = workspace[recipename]['srctreebase']
+    relpatchdir = os.path.relpath(srctreebase, srctree)
+    if relpatchdir == '.':
+        patchdir_params = {}
+    else:
+        patchdir_params = {'patchdir': relpatchdir}
+
+    def srcuri_entry(fname):
+        if patchdir_params:
+            paramstr = ';' + ';'.join('%s=%s' % (k,v) for k,v in patchdir_params.items())
+        else:
+            paramstr = ''
+        return 'file://%s%s' % (basepath, paramstr)
 
     initial_rev, update_rev, changed_revs, filter_patches = _get_patchset_revs(srctree, append, initial_rev, force_patch_refresh)
     if not initial_rev:
@@ -1625,7 +1640,6 @@
             new_f = {}
             del_f = {}
         else:
-            srctreebase = workspace[recipename]['srctreebase']
             upd_f, new_f, del_f = _export_local_files(srctree, rd, local_files_dir, srctreebase)
 
         remove_files = []
@@ -1661,14 +1675,15 @@
                     removedentries, remaining = _remove_file_entries(
                                                     srcuri, remove_files)
                     if removedentries or remaining:
-                        remaining = ['file://' + os.path.basename(item) for
+                        remaining = [srcuri_entry(os.path.basename(item)) for
                                      item in remaining]
                         removevalues = {'SRC_URI': removedentries + remaining}
                 appendfile, destpath = oe.recipeutils.bbappend_recipe(
                                 rd, appendlayerdir, files,
                                 wildcardver=wildcard_version,
                                 removevalues=removevalues,
-                                redirect_output=dry_run_outdir)
+                                redirect_output=dry_run_outdir,
+                                params=[patchdir_params] * len(files))
             else:
                 logger.info('No patches or local source files needed updating')
         else:
@@ -1692,7 +1707,7 @@
                     # replace the entry in SRC_URI with our local version
                     logger.info('Replacing remote patch %s with updated local version' % basepath)
                     path = os.path.join(files_dir, basepath)
-                    _replace_srcuri_entry(srcuri, basepath, 'file://%s' % basepath)
+                    _replace_srcuri_entry(srcuri, basepath, srcuri_entry(basepath))
                     updaterecipe = True
                 else:
                     logger.info('Updating patch %s%s' % (basepath, dry_run_suffix))
@@ -1706,7 +1721,7 @@
                            os.path.join(files_dir, basepath),
                            dry_run_outdir=dry_run_outdir,
                            base_outdir=recipedir)
-                srcuri.append('file://%s' % basepath)
+                srcuri.append(srcuri_entry(basepath))
                 updaterecipe = True
             for basepath, path in new_p.items():
                 logger.info('Adding new patch %s%s' % (basepath, dry_run_suffix))
@@ -1714,7 +1729,7 @@
                            os.path.join(files_dir, basepath),
                            dry_run_outdir=dry_run_outdir,
                            base_outdir=recipedir)
-                srcuri.append('file://%s' % basepath)
+                srcuri.append(srcuri_entry(basepath))
                 updaterecipe = True
             # Update recipe, if needed
             if _remove_file_entries(srcuri, remove_files)[0]: