diff -rupN seafile-ccnet-5.1.1.orig/lib/Makefile.am seafile-ccnet-5.1.1/lib/Makefile.am
--- seafile-ccnet-5.1.1.orig/lib/Makefile.am	2016-04-21 11:04:46.000000000 +0200
+++ seafile-ccnet-5.1.1/lib/Makefile.am	2016-04-22 10:02:52.583732050 +0200
@@ -1,3 +1,4 @@
+include $(TOPDIR)/rules.mk
 
 AM_CPPFLAGS = @GLIB2_CFLAGS@ -I$(top_srcdir)/include \
 	-I$(top_srcdir)/include/ccnet \
@@ -72,11 +73,11 @@ ccnet-client.c: ccnet-object.h
 
 ccnet-object.h: ${ccnet_object_define}
 	rm -f $@
-	valac --pkg posix ${ccnet_object_define} -C -H ccnet-object.h
+	"$(STAGING_DIR_HOST)/bin/valac" --pkg posix ${ccnet_object_define} -C -H ccnet-object.h
 
 ccnetobj.c: ${ccnet_object_define}
 	rm -f $@
-	valac -C --pkg posix ${ccnet_object_define}
+	"$(STAGING_DIR_HOST)/bin/valac" -C --pkg posix ${ccnet_object_define}
 
 searpc_gen = searpc-signature.h searpc-marshal.h
 
@@ -86,7 +87,7 @@ rpc_table.stamp: ${top_srcdir}/lib/rpc_t
 	@rm -f rpc_table.tmp
 	@touch rpc_table.tmp
 	@echo "[libsearpc]: generating rpc header files"
-	@PYTHON@ `which searpc-codegen.py` ${top_srcdir}/lib/rpc_table.py
+	@PYTHON@ "$(STAGING_DIR)/usr/bin/searpc-codegen.py" ${top_srcdir}/lib/rpc_table.py
 	@echo "[libsearpc]: done"
 	@mv -f rpc_table.tmp $@