Fix contrib/xml2 makefile to not override CFLAGS.

diff --git a/contrib/xml2/Makefile b/contrib/xml2/Makefile
index 0bd5b032976c790e070df682531a7cedd9dd5362..e9ed20f128c794c0929dff2cf1f3e48cc26add1b 100644 (file)
--- a/contrib/xml2/Makefile
+++ b/contrib/xml2/Makefile
@@ -12,7 +12,7 @@ DATA_built = pgxml.sql
 DATA = uninstall_pgxml.sql
 DOCS = README.xml2
 
-override CFLAGS += $(shell xml2-config --cflags)
+PG_CPPFLAGS := $(shell xml2-config --cflags)
 
 ifdef USE_PGXS
 PGXS := $(shell pg_config --pgxs)