$NetBSD: patch-xen_Makefile,v 1.1 2021/04/18 12:31:26 bouyer Exp $

--- xen/Makefile.orig	2018-04-17 19:21:31.000000000 +0200
+++ xen/Makefile	2018-04-23 13:29:47.000000000 +0200
@@ -167,7 +167,7 @@
 	    -e 's/@@whoami@@/$(XEN_WHOAMI)/g' \
 	    -e 's/@@domain@@/$(XEN_DOMAIN)/g' \
 	    -e 's/@@hostname@@/$(XEN_BUILD_HOST)/g' \
-	    -e 's!@@compiler@@!$(shell $(CC) $(CFLAGS) --version 2>&1 | head -1)!g' \
+	    -e 's!@@compiler@@!$(shell $(CC) $(EXTRA_CFLAGS) $(CFLAGS) --version 2>&1 | head -1)!g' \
 	    -e 's/@@version@@/$(XEN_VERSION)/g' \
 	    -e 's/@@subversion@@/$(XEN_SUBVERSION)/g' \
 	    -e 's/@@extraversion@@/$(XEN_EXTRAVERSION)/g' \