-- Force decimal interpretation of $minoffset before passing it to head -c.
-- Needed because FreeBSD's head(1) parses its byte count with strtol(3)
-- using base 0, so a value with a leading zero (as produced by `od -A d`,
-- which zero-pads the decimal offset) is misread as octal and rejected
-- with "illegal byte count" whenever it contains an 8 or 9 digit. This
-- caused the checksums test to fail on FreeBSD.

--- tests/checksums.orig	2026-07-28 07:31:59 UTC
+++ tests/checksums
@@ -133,7 +133,7 @@ rm -f multi_ucd3d_corrupt.h5
 # and the last part of the file (minus the part we've zeroed)
 #
 rm -f multi_ucd3d_corrupt.h5
-head -c $minoffset h5_check_files/multi_ucd3d.h5 > multi_ucd3d_corrupt.h5
+head -c $(awk -v n="$minoffset" 'BEGIN{printf "%d", n}') h5_check_files/multi_ucd3d.h5 > multi_ucd3d_corrupt.h5
 dd if=/dev/zero bs=16 count=1 >> multi_ucd3d_corrupt.h5 2>/dev/null
 leftover=$(expr $size - $minoffset - 16)
 tail -c $leftover h5_check_files/multi_ucd3d.h5 >> multi_ucd3d_corrupt.h5