Help needed with unreproducible .gnu_debuglink section

[Johannes Schauer Marin Rodrigues]

Hi,

I seek help in making my package vcmi reproducible. According to diffoscope,
the remaining problems look like this:

│ │ ├── data.tar.xz
│ │ │ ├── data.tar
│ │ │ │ ├── ./usr/games/vcmiclient
│ │ │ │ │┄ File has been modified after NT_GNU_BUILD_ID has been applied.
│ │ │ │ │ ├── readelf --wide --notes {}
│ │ │ │ │ │ @@ -1,12 +1,12 @@
│ │ │ │ │ │  
│ │ │ │ │ │  Displaying notes found in: .note.gnu.property
│ │ │ │ │ │    Owner                Data size   Description
│ │ │ │ │ │    GNU                  0x00000010  NT_GNU_PROPERTY_TYPE_0        Properties: x86 ISA needed: x86-64-baseline
│ │ │ │ │ │  
│ │ │ │ │ │  Displaying notes found in: .note.gnu.build-id
│ │ │ │ │ │    Owner                Data size   Description
│ │ │ │ │ │ +  GNU                  0x00000014  NT_GNU_BUILD_ID (unique build ID bitstring)         Build ID: 1b609b1c00810790449099bb43d28b4c19c029ff
│ │ │ │ │ │ -  GNU                  0x00000014  NT_GNU_BUILD_ID (unique build ID bitstring)         Build ID: 15a9395c29226dbedb6fbf9ac4a05e1808121b0d
│ │ │ │ │ │  
│ │ │ │ │ │  Displaying notes found in: .note.ABI-tag
│ │ │ │ │ │    Owner                Data size   Description
│ │ │ │ │ │    GNU                  0x00000010  NT_GNU_ABI_TAG (ABI version tag)            OS: Linux, ABI: 3.2.0
│ │ │ │ │ ├── readelf --wide --decompress --hex-dump=.gnu_debuglink {}
│ │ │ │ │ │ @@ -1,7 +1,7 @@
│ │ │ │ │ │  
│ │ │ │ │ │  Hex dump of section '.gnu_debuglink':
│ │ │ │ │ │ +  0x00000000 36303962 31633030 38313037 39303434 609b1c0081079044
│ │ │ │ │ │ +  0x00000010 39303939 62623433 64323862 34633139 9099bb43d28b4c19
│ │ │ │ │ │ +  0x00000020 63303239 66662e64 65627567 00000000 c029ff.debug....
│ │ │ │ │ │ +  0x00000030 8f1729a9                            ..).
│ │ │ │ │ │ -  0x00000000 61393339 35633239 32323664 62656462 a9395c29226dbedb
│ │ │ │ │ │ -  0x00000010 36666266 39616334 61303565 31383038 6fbf9ac4a05e1808
│ │ │ │ │ │ -  0x00000020 31323162 30642e64 65627567 00000000 121b0d.debug....
│ │ │ │ │ │ -  0x00000030 3c12fd81                            <...

This is from the salsa CI reprotest job and a full log can be found here:
https://salsa.debian.org/games-team/vcmi/-/jobs/7086336

Is this kind of issue familiar to somebody maybe?

Thanks in advance!

cheers, josch
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