Place include utils/float.h under ifdef

Author: knizhnik

Makefile

@@ -13,6 +13,9 @@ DATA = vops--1.0.sql
 
 REGRESS = test
 
+PG_CPPFLAGS = -I$(libpq_srcdir)
+PG_LIBS = $(libpq_pgport)
+
 ifdef USE_PGXS
 PG_CONFIG = pg_config
 PGXS := $(shell $(PG_CONFIG) --pgxs)

vops.c

@@ -27,7 +27,9 @@
 #include "utils/array.h"
 #include "utils/tqual.h"
 #include "utils/datum.h"
+#if PG_VERSION_NUM>=120000
 #include "utils/float.h"
+#endif
 #include "utils/builtins.h"
 #include "utils/datetime.h"
 #include <utils/typcache.h>