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-rw-r--r--tools/gpio/Makefile1
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/gpio/Makefile b/tools/gpio/Makefile
index b4401536cfa9..805a2c0cf4cd 100644
--- a/tools/gpio/Makefile
+++ b/tools/gpio/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
include ../scripts/Makefile.include
bindir ?= /usr/bin