no mtm in diff

Author: Vladimir Ershov

Makefile

@@ -23,7 +23,9 @@ ifdef USE_PGXS
 else
 	subdir = contrib/pgpro_scheduler
 	top_builddir = ../..
-	PG_CPPFLAGS = -D_WITH_MTM -I$(top_srcdir)/contrib/mmts -I$(libpq_srcdir)
+	ifneq ($(MAJORVERSION),10)
+		PG_CPPFLAGS = -D_WITH_MTM -I$(top_srcdir)/contrib/mmts -I$(libpq_srcdir)
+	endif
 	include $(top_builddir)/src/Makefile.global
 	include $(top_srcdir)/contrib/contrib-global.mk
 endif