From d8f53ce6a404da6f09b0e4cf2a19a7ffaca83523 Mon Sep 17 00:00:00 2001
From: Wei Liu <wei.liu2@citrix.com>
Date: Wed, 5 Oct 2016 15:25:42 +0100
Subject: [PATCH] Config.mk: introduce cc-ifversion

It returns different string depending on compiler version.

No user yet.

Signed-off-by: Wei Liu <wei.liu2@citrix.com>
Acked-by: Jan Beulich <jbeulich@suse.com>
---
 Config.mk | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Config.mk b/Config.mk
index 4ccf12c48a..2ed32eb7ae 100644
--- a/Config.mk
+++ b/Config.mk
@@ -129,6 +129,11 @@ define cc-ver-check-closure
     endif
 endef
 
+# cc-ifversion: Check compiler version and take branch accordingly
+# Usage $(call cc-ifversion,lt,0x040700,string_if_y,string_if_n)
+cc-ifversion = $(shell [ $(call cc-ver,$(CC),$(1),$(2)) = "y" ] \
+				&& echo $(3) || echo $(4))
+
 # Require GCC v4.1+
 check-$(gcc) = $(call cc-ver-check,CC,0x040100,"Xen requires at least gcc-4.1")
 $(eval $(check-y))
-- 
2.30.2