Do not run tap tests when PG < 15, tap tests are used to test replication

Author: darold

Makefile

@@ -22,8 +22,15 @@ TESTS = 01_username 02_password 03_rename 04_alter_pwd \
 
 REGRESS = $(patsubst test/sql/%.sql,%,$(TESTS))
 
-TAP_TESTS = 1
-
 PG_CONFIG = pg_config
+
+# Extract the major version number
+PG_MAJORVERSION := $(shell $(PG_CONFIG) --version | sed -e 's/^[a-zA-Z ]*//' -e 's/\..*//')
+
+# Check if major version is greater than or equal to 15 to run tap test
+ifeq ($(shell test $(PG_MAJORVERSION) -ge 15; echo $$?),0)
+    TAP_TESTS = 1
+endif
+
 PGXS := $(shell $(PG_CONFIG) --pgxs)
 include $(PGXS)