diff --git a/apps/ivr/Makefile.ivr_application b/apps/ivr/Makefile.ivr_application
index 57941124..159d01f0 100644
--- a/apps/ivr/Makefile.ivr_application
+++ b/apps/ivr/Makefile.ivr_application
@@ -42,8 +42,11 @@ compile:
 install: all $(extra_install)
 	install -d $(DESTDIR)${BASEDIR}/${LIB_INSTALLDIR}
 	install -m ${LIB_PERMISSIONS}  *.pyc $(DESTDIR)${BASEDIR}/${LIB_INSTALLDIR}
-	install -d $(DESTDIR)${BASEDIR}/${LIB_INSTALLDIR}/${LIBDIR}
-	install -m ${LIB_PERMISSIONS}  ${LIBDIR}/*.pyc $(DESTDIR)${BASEDIR}/${LIB_INSTALLDIR}/${LIBDIR}
+
+ifneq (,$(LIBDIR))
+	install -d $(DESTDIR)${BASEDIR}/${LIB_INSTALLDIR}/${LIBDIR} 
+	install -m ${LIB_PERMISSIONS}  ${LIBDIR}/*.pyc $(DESTDIR)${BASEDIR}/${LIB_INSTALLDIR}/${LIBDIR}  
+endif
 
 .PHONY: install-cfg
 install-cfg: 
diff --git a/apps/twit/Makefile b/apps/twit/Makefile
new file mode 100644
index 00000000..4c99d0e6
--- /dev/null
+++ b/apps/twit/Makefile
@@ -0,0 +1,10 @@
+
+NAME=twit
+VERSION=0.0.2
+
+LIBDIR=
+
+extra_install = $(NAME)_audio
+
+include ../ivr/Makefile.ivr_application
+