[PATCH cygport] Add initial support for SOURCE_DATE_EPOCH

[Christian Franke]

ASSI via Cygwin-apps wrote:
> Christian Franke via Cygwin-apps writes:
>> If binutils, gzip and tar also would support this, the patch would be
>> empty :-)
> GZip has -n though ...

For gzip I decided to keep the timestamp and use (the GNU version of) 
touch instead.


> and GNU tar --mtime and --clamp-mtime, so why not use
> that?

Already done:

+    if [ -n "${SOURCE_DATE_EPOCH}" ]
+    then
+        # Ensure reproducible sort order and last modification times <= 
SOURCE_DATE_EPOCH
+        TAR_SOURCE_DATE_OPTS="--sort=name --mtime=@${SOURCE_DATE_EPOCH} 
--clamp-mtime"
+    fi


:-)

-- 
Regards,
Christian