CFLAGS is just from Config.mk, instead use the flags used to build
Xen.

Signed-off-by: Anthony PERARD <anthony.per...@citrix.com>
---

Notes:
    I don't know if CFLAGS is even useful there, just --version without the
    flags might produce the same result.

 xen/build.mk | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/xen/build.mk b/xen/build.mk
index e2a78aa806..d468bb6e26 100644
--- a/xen/build.mk
+++ b/xen/build.mk
@@ -23,7 +23,7 @@ define cmd_compile.h
            -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) $(XEN_CFLAGS) --version 2>&1 | 
head -1)!g' \
            -e 's/@@version@@/$(XEN_VERSION)/g' \
            -e 's/@@subversion@@/$(XEN_SUBVERSION)/g' \
            -e 's/@@extraversion@@/$(XEN_EXTRAVERSION)/g' \
-- 
Anthony PERARD


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