[test] Minor

test/api/Makefile.am

@@ -14,7 +14,7 @@ EXTRA_DIST += CMakeLists.txt
 
 if HAVE_GLIB
 AM_CPPFLAGS = -DSRCDIR="\"$(srcdir)\"" -I$(top_srcdir)/src/ -I$(top_builddir)/src/ $(GLIB_CFLAGS)
-LDADD = $(top_builddir)/src/libharfbuzz.la $(top_builddir)/src/libharfbuzz-subset.la $(GLIB_LIBS)
+LDADD = $(top_builddir)/src/libharfbuzz.la $(GLIB_LIBS)
 
 EXTRA_DIST += hb-test.h
 
@@ -34,6 +34,8 @@ TEST_PROGS = \
 	test-version \
 	$(NULL)
 
+test_subset_LDADD = $(LDADD) $(top_builddir)/src/libharfbuzz-subset.la
+
 test_unicode_CPPFLAGS = \
 	$(AM_CPPFLAGS) \
 	$(GLIB_CFLAGS) \