don't use 'localversion*' files twice

Since we look in both source and object directories for localversion*
files, we accidentally ended up getting them twice.  Use 'sort -u' to
avoid that.

Reported-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/Makefile b/Makefile
index cdeda68cf2aa..7e4968fb2134 100644
--- a/Makefile
+++ b/Makefile
@@ -789,7 +789,7 @@ $(vmlinux-dirs): prepare scripts
 
 pattern = ".*/localversion[^~]*"
 string  = $(shell cat /dev/null \
-           `find $(objtree) $(srctree) -maxdepth 1 -regex $(pattern) | sort`)
+           `find $(objtree) $(srctree) -maxdepth 1 -regex $(pattern) | sort -u`)
 
 localver = $(subst $(space),, $(string) \
                               $(patsubst "%",%,$(CONFIG_LOCALVERSION)))