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-rw-r--r--util/Makefile2
1 files changed, 1 insertions, 1 deletions
diff --git a/util/Makefile b/util/Makefile
index 943a2ad3..d70ca057 100644
--- a/util/Makefile
+++ b/util/Makefile
@@ -12,6 +12,6 @@ test:
case $$? in 0) result=ok;; *) result='not ok';; esac; \
echo $$result $$i - $$exe; \
} & \
- (( i++ )); \
+ i=$$(( i+1 )); \
done; \
wait