--- src/Makefile.global.in.orig	2018-05-14 09:03:34 -0400
+++ src/Makefile.global.in	2018-05-14 09:04:08 -0400
@@ -561,6 +561,7 @@
     $(TEMP_CONF) \
     $(pg_regress_locale_flags) $(EXTRA_REGRESS_OPTS)
 pg_regress_installcheck = \
+    $(with_temp_install) \
     $(top_builddir)/src/test/regress/pg_regress \
     --inputdir=$(srcdir) \
     --bindir='$(bindir)' \