see https://bugs.gentoo.org/962932
let automake handle build ordering w/ SUBDIRS
dieharder_LDADD is already well defined in dieharder/Makefile.am
--- a/Makefile.am
+++ b/Makefile.am
@@ -74,7 +74,6 @@ SPEC = $(PROJECT).spec
 # presume the simplest of dependencies and remake if includes change
 # for example.
 #========================================================================
-all: $(LIBTIME) $(PROGTIME) $(INCTIME)
 
 # This is not, actually, a particularly useful toplevel target.  To
 # work correctly it also would require a full parsing of all
