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-rw-r--r--images/Makefile3
1 files changed, 2 insertions, 1 deletions
diff --git a/images/Makefile b/images/Makefile
index c79f1a272e..7a8bb94fe0 100644
--- a/images/Makefile
+++ b/images/Makefile
@@ -113,7 +113,8 @@ $(obj)/piggy.o: $(obj)/barebox.z FORCE
$(obj)/sha_sum.o: $(obj)/barebox.sha.bin FORCE
quiet_cmd_sha256bin ?= SHA-BIN $@
- cmd_sha256bin ?= printf "$(shell awk '{printf $$1}' < $(obj)/barebox.sum | sed -e 's/../\\x&/g' )" > $@
+ cmd_sha256bin = printf "$(shell sed 's/ .*$$//;s/../0x&\n/g;s/\n$$//' $(obj)/barebox.sum | \
+ while read -r byte; do printf '\%o' $$byte; done)" > $@
quiet_cmd_sha256sum ?= SHA $@
cmd_sha256sum ?= sha256sum $(obj)/barebox.z > $@