diff --git a/Makefile.in b/Makefile.in
index 95b33980..d58b8b31 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -1059,10 +1059,12 @@ clean-local:
 
 # vim: set ft=automake:
 
+.PHONY: devtest devtest-recursive devtest-local
+
 devtest: devtest-recursive
 
 devtest-recursive:
-	@for subdir in $(SUBDIRS); do \
+	-for subdir in $(SUBDIRS); do \
 		if test "$$subdir" = . ; then \
 			continue; \
 		else   \
@@ -1072,12 +1074,12 @@ devtest-recursive:
 	$(MAKE) $(AM_FLAGS) devtest-local
 
 devtest-local:
-	@for t in $(TESTS) ; do \
+	-for t in $(TESTS) ; do \
 		echo "TEST: $$t" ;\
 		if test -f "./$$t" ; then \
-			srcdir=$(srcdir) "./$$t" ;\
+			srcdir=$(srcdir) GIELLA_CORE=$(GIELLA_CORE) "./$$t" ;\
 		else \
-			srcdir=$(srcdir) "$(srcdir)/$$t" ;\
+			srcdir=$(srcdir) GIELLA_CORE=$(GIELLA_CORE) "$(srcdir)/$$t" ;\
 		fi ;\
 	done