Successive builds of *.trx differ

[gds]

I can git clone the asuswrt-merlin project and build a trx for my router successfully. Then if I save the trx file and repeat the build I generate another trx of the exact same length as the first one but it differs internally quite a lot and, of course, has a different CRC-32 checksum. Is there a reason they should differ (other than maybe time/date encoded somewhere in the binary)?
Thanks.

 

[RMerlin]

I can git clone the asuswrt-merlin project and build a trx for my router successfully. Then if I save the trx file and repeat the build I generate another trx of the exact same length as the first one but it differs internally quite a lot and, of course, has a different CRC-32 checksum. Is there a reason they should differ (other than maybe time/date encoded somewhere in the binary)?
Thanks.

Datestamps in the filesystem for instance will be different.

 

[gds]

Datestamps in the filesystem for instance will be different.

Yes, I guess that's it. I see about 33% of the bytes in successive builds differ.