Vala: Use $(srcdir) in rebuild rules. valac is always run in srcdir as the generated files are distributed. So srcdir needs to be taken into account in the rebuild rules to not wrongly trigger a rebuild in the wrong directory. * automake.in (lang_vala_finish_target): Rebuild files in $(srcdir). * tests/vala2.test: Test rebuild rules from VPATH build. Signed-off-by: Jürg Billeter <j@bitron.ch> Signed-off-by: Ralf Wildenhues <Ralf.Wildenhues@gmx.de>