Compacting SPECIFIC_TAP conditions

Author: Maxim Orlov

Makefile

@@ -52,21 +52,7 @@ REGRESS += array
 endif
 
 # For 9.6-11 we have to make specific target with tap tests
-SPECIFIC_TAP =
-
-ifeq ($(MAJORVERSION), 9.6)
-SPECIFIC_TAP = yes
-endif
-
-ifeq ($(MAJORVERSION), 10)
-SPECIFIC_TAP = yes
-endif
-
-ifeq ($(MAJORVERSION), 11)
-SPECIFIC_TAP = yes
-endif
-
-ifdef SPECIFIC_TAP
+ifeq ($(MAJORVERSION), $(filter 9.6% 10% 11%, $(MAJORVERSION)))
 wal-check: temp-install
 	$(prove_check)