diff --git a/common b/common
index c1d07dd16c..ba33d1f3cf 160000
--- a/common
+++ b/common
@@ -1 +1 @@
-Subproject commit c1d07dd16cdb95e2cc83ced327d33cebab0fcf3d
+Subproject commit ba33d1f3cf0b9143963f13dd1ea05c93b1db8864
diff --git a/ext/Makefile.am b/ext/Makefile.am
index 7c006ff72a..b4419785b0 100644
--- a/ext/Makefile.am
+++ b/ext/Makefile.am
@@ -81,3 +81,5 @@ DIST_SUBDIRS = \
   pango \
   theora \
   vorbis
+
+include $(top_srcdir)/common/parallel-subdirs.mak
diff --git a/gst/Makefile.am b/gst/Makefile.am
index 93522195dc..f25a56d9cb 100644
--- a/gst/Makefile.am
+++ b/gst/Makefile.am
@@ -1,2 +1,4 @@
 SUBDIRS = $(GST_PLUGINS_SELECTED)
 DIST_SUBDIRS = $(GST_PLUGINS_ALL)
+
+include $(top_srcdir)/common/parallel-subdirs.mak
diff --git a/sys/Makefile.am b/sys/Makefile.am
index cc10bd6da0..8a0309a011 100644
--- a/sys/Makefile.am
+++ b/sys/Makefile.am
@@ -26,3 +26,4 @@ DIST_SUBDIRS = \
   ximage \
   xvimage
 
+include $(top_srcdir)/common/parallel-subdirs.mak
diff --git a/tests/examples/Makefile.am b/tests/examples/Makefile.am
index 7c4e1f8ae9..de197609ec 100644
--- a/tests/examples/Makefile.am
+++ b/tests/examples/Makefile.am
@@ -11,3 +11,5 @@ endif
 SUBDIRS = app $(FT2_SUBDIRS) $(GIO_SUBDIRS) volume dynamic v4l overlay
 
 DIST_SUBDIRS = app seek volume dynamic snapshot gio v4l overlay
+
+include $(top_srcdir)/common/parallel-subdirs.mak