On 08/09/2023 15:09, Corinna Vinschen wrote:
Jon,
you did all the latest work in terms of the build machinery.
Would you mind to review this patch, please?
Sure.
Patch looks all right to me, so I applied it.
On Sep 5 19:01, Christian Franke wrote:
This patch enables reproducible builds of cygwin package in conjunction with
this cygport patch:
https://sourceware.org/pipermail/cygwin-apps/2023-August/043108.html
cygwin.cygport was enhanced for the test as described in the above post.
If the same build path, SOURCE_DATE_EPOCH and toolchain are used, rebuilds
with cygport produce identical distribution tarballs. Adding proper
-fmacro-prefix-map gcc options (or remove all usages of __FILE__) could
possibly make this independent from the build path.
Note that 'u' (replace with newer objects only) flag needed to be removed
from ar commands because it is incompatible with 'D' (deterministic
archive). I don't expect any negative effect because existing .a files are
always removed before ar is run.
Not yet tested with different machines or different users accounts.
Patch would be much simpler (mkvers.sh only) if binutils would support
SOURCE_DATE_EPOCH directly.
