tools/build/tests/ex/Build - third_party/linux - Git at Google

 ex-y += ex.o
 ex-y += a.o
 ex-y += b.o
 ex-y += empty/

 libex-y += c.o
 libex-y += d.o
 libex-y += arch/
	ex-y += ex.o
	ex-y += a.o
	ex-y += b.o
	ex-y += empty/

	libex-y += c.o
	libex-y += d.o
	libex-y += arch/