The prebind_cksum_command contains the value of the original check sum
for prebound files or zero. When a prebound file is first created or
modified for other than updating its prebinding information the value of
the check sum is set to zero. When the file has it prebinding re-done and
if the value of the check sum is zero the original check sum is
calculated and stored in cksum field of this load command in the output
file. If when the prebinding is re-done and the cksum field is non-zero
it is left unchanged from the input file.
The prebind_cksum_command contains the value of the original check sum for prebound files or zero. When a prebound file is first created or modified for other than updating its prebinding information the value of the check sum is set to zero. When the file has it prebinding re-done and if the value of the check sum is zero the original check sum is calculated and stored in cksum field of this load command in the output file. If when the prebinding is re-done and the cksum field is non-zero it is left unchanged from the input file.