--- libayatana-common-0.9.13.orig/cmake/FindVala.cmake
+++ libayatana-common-0.9.13/cmake/FindVala.cmake
@@ -40,7 +40,15 @@ if (VALA_COMPILER)
 	string (REGEX MATCH "[.0-9]+" VALA_VERSION "${VALA_VERSION}")
 endif (VALA_COMPILER)
 
-find_program (VAPI_GEN "vapigen")
+pkg_check_modules(_pc_vapigen vapigen)
+if (_pc_vapigen_FOUND)
+	pkg_get_variable(_pc_vapigen_executable vapigen vapigen)
+endif (_pc_vapigen_FOUND)
+if (_pc_vapigen_executable)
+	set(VAPI_GEN "${_pc_vapigen_executable}")
+else (_pc_vapigen_executable)
+	find_program (VAPI_GEN "vapigen")
+endif (_pc_vapigen_executable)
 
 if (VAPI_GEN)
 	execute_process (COMMAND ${VAPI_GEN} --version