Seen with gcc-11.5.0 on an aarch64 machine, build failed. Looking at the code, r1len (or r1->len, actually) really seems variable. So use memset() and fix build for that older compiler version at least. Fixes: e8b17865833b8 ("segtree: Fix range aggregation on Big Endian") Signed-off-by: Phil Sutter --- src/segtree.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/src/segtree.c b/src/segtree.c index bfea2f64ed812..a12820bcf1ece 100644 --- a/src/segtree.c +++ b/src/segtree.c @@ -426,8 +426,9 @@ void concat_range_aggregate(struct expr *set) string_type) { unsigned int r1len = div_round_up(r1->len, BITS_PER_BYTE); unsigned int str_len = prefix_len / BITS_PER_BYTE; - char data[r1len + 1] = {}; + char data[r1len + 1]; + memset(data, 0, r1len + 1); mpz_export_data(data, r1->value, BYTEORDER_HOST_ENDIAN, r1len); data[str_len] = '*'; -- 2.51.0