[xen staging] build: Fix missing MAKEFLAGS --no-print-directory

[patchbot@xxxxxxx]

commit f2beaf876dce590ee9937b79cd3498f2fe9f661c
Author:     Anthony PERARD <anthony.perard@xxxxxxxxxx>
AuthorDate: Wed Aug 17 16:21:06 2022 +0100
Commit:     Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
CommitDate: Wed Aug 17 16:35:33 2022 +0100

    build: Fix missing MAKEFLAGS --no-print-directory
    
    While we already have "--no-print-directory" added to the make flags
    in some cases, there's one case where the flags is missing, when doing
    an out-of-tree build with O=, e.g.
        cd xen; make O=build
    
    Without it, we just have loads of "Entering directory" and "Leaving
    directory" with the same directory.
    
    The comment and location in the Makefile are copied from Linux.
    
    Reported-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Signed-off-by: Anthony PERARD <anthony.perard@xxxxxxxxxx>
    Acked-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Acked-by: Jan Beulich <jbeulich@xxxxxxxx>
---
 xen/Makefile | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/xen/Makefile b/xen/Makefile
index 69b4dc960f..106aff6a07 100644
--- a/xen/Makefile
+++ b/xen/Makefile
@@ -186,6 +186,11 @@ endif # root-make-done
 # We process the rest of the Makefile if this is the final invocation of make
 ifeq ($(need-sub-make),)
 
+# Do not print "Entering directory ...",
+# but we want to display it when entering to the output directory
+# so that IDEs/editors are able to understand relative filenames.
+MAKEFLAGS += --no-print-directory
+
 ifeq ($(abs_srctree),$(abs_objtree))
     # building in the source tree
     srctree := .
--
generated by git-patchbot for /home/xen/git/xen.git#staging