1
 2all : pre1 pre2 .WAIT post1 post2
 3pre1: ; @testhelp -q out start-$@ file PRE1 wait PRE2 sleep 1 out end-$@
 4pre2: ; @testhelp -q wait PRE1 out $@ file PRE2
 5
 6post1: ; @testhelp -q wait POST2 out $@ file POST1
 7post2: ; @testhelp -q file POST2 wait POST1 out $@
 8
 9# This is just here so we don't fail with older versions of make
10.WAIT: