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-rw-r--r--Makefile3
1 files changed, 3 insertions, 0 deletions
diff --git a/Makefile b/Makefile
index c060363f11c3..2f6c0e9c684a 100644
--- a/Makefile
+++ b/Makefile
@@ -22,6 +22,9 @@ LC_COLLATE=C
LC_NUMERIC=C
export LC_COLLATE LC_NUMERIC
+# Avoid interference with shell env settings
+unexport GREP_OPTIONS
+
# We are using a recursive build, so we need to do a little thinking
# to get the ordering right.
#