libwebrtc and snowflake are not being built reproducibly (unless you build in the same month)
I already ran into this problem when building 7.0a4 but did not have time to investigate it back then: I did only a partial rebuild (not touching snowflake as this was not necessary) but boklm did a full build. The result was a different
Now this happened with the build for 7.5a2 again. The diff is:
--- /dev/fd/63 2017-07-06 09:57:34.341983842 +0200 +++ /dev/fd/62 2017-07-06 09:57:34.341983842 +0200 @@ -750821,7 +750821,7 @@ 00b74e40: 6e6e 656c 3d25 642c 2025 6c75 2900 7468 nnel=%d, %lu).th 00b74e50: 6973 203d 3d20 675f 746f 705f 6d61 6e61 is == g_top_mana 00b74e60: 6765 7200 4368 6563 6b20 6661 696c 6564 ger.Check failed -00b74e70: 3a20 6675 6e63 2e20 004a 756e 2030 3420 : func. .Jun 04 +00b74e70: 3a20 6675 6e63 2e20 004a 756c 2030 3220 : func. .Jul 02 00b74e80: 3230 3137 2030 353a 3030 3a30 3000 4368 2017 05:00:00.Ch 00b74e90: 6563 6b20 6661 696c 6564 3a20 6269 6e64 eck failed: bind 00b74ea0: 5f73 7461 7465 5f2e 2000 2c3c 2a00 4368 _state_. .,<*.Ch
That seems to be a bit weird given the actual build date but boklm had the idea it could be the first Sunday of the month/week getting embedded.
And, indeed, as boklm pointed out
/build/write_build_date_header.py seems to do such a thing.
I can trace the problem back to
build_time.o in the libwebrtc .a file.