diff -Naur kmplayer-orig/src/Makefile.am kmplayer/src/Makefile.am
--- kmplayer-orig/src/Makefile.am	2018-08-25 10:16:53.000000000 +0000
+++ kmplayer/src/Makefile.am	2019-01-31 21:26:36.000000000 +0000
@@ -27,6 +27,7 @@
 kmplayer_la_SOURCES= main.cpp kmplayerapp.cpp kmplayertvsource.cpp kmplayerbroadcast.cpp kmplayervdr.cpp
 kmplayer_la_LIBADD= libkmplayercommon.la $(LIB_XTEST)
 kmplayer_la_LDFLAGS= -module $(KDE_PLUGIN) $(LIB_QT)
+kmplayer_la_COMPILE_FIRST= kmplayer_backend_stub.h
 
 EXTRA_PROGRAMS = kxineplayer kxvplayer kgstplayer
 if include_kxineplayer
@@ -48,14 +49,17 @@
 kxineplayer_CFLAGS= $(CFLAGS_XINE)
 kxineplayer_LDFLAGS= $(all_libraries) $(KDE_RPATH) $(LIB_QT) -lDCOP $(LIB_TDECORE) $(LIB_TDEUI) -ltdefx $(LIB_TDEIO) -ltdetexteditor
 kxineplayer_SOURCES= xineplayer.cpp
+kxineplayer_COMPILE_FIRST= kmplayer_callback_stub.h
 
 kxvplayer_LDADD= libkmplayerbackend.la -lDCOP -lXv
 kxvplayer_LDFLAGS= $(all_libraries) $(KDE_RPATH) $(LIB_QT) -lDCOP $(LIB_TDECORE) $(LIB_TDEUI) -ltdefx $(LIB_TDEIO) -ltdetexteditor
 kxvplayer_SOURCES= xvplayer.cpp
+kxvplayer_COMPILE_FIRST= kmplayer_callback_stub.h
 
 kgstplayer_LDADD= libkmplayerbackend.la $(LIB_GST) $(LIB_GST_PLUGINS) $(LIB_GST_OVERLAY) -lDCOP
 kgstplayer_LDFLAGS= $(all_libraries) $(KDE_RPATH) $(LIB_QT) -lDCOP $(LIB_TDECORE) $(LIB_TDEUI) -ltdefx $(LIB_TDEIO) -ltdetexteditor
 kgstplayer_SOURCES= gstplayer.cpp
+kgstplayer_COMPILE_FIRST= kmplayer_callback_stub.h
 
 knpplayer_LDADD= $(LIBNSPR_LIBS)
 knpplayer_LDFLAGS= -lX11 -lgmodule-2.0
@@ -79,3 +83,5 @@
 
 messages: rc.cpp
 	$(XGETTEXT) *.cpp -o $(podir)/kmplayer.pot
+
+.NOTPARALLEL: