Re: multi-arch hinter: spread-sheet-widget info files are detected as architecture dependent
Hi Fritz,
TL;DR: Just add m-a:same back. The problem has temporary nature.
On Sun, Aug 16, 2020 at 08:29:57AM +0200, Friedrich Beckmann wrote:
> Hallo Helmut,
>
> the spread-sheet-widget package
>
> https://tracker.debian.org/pkg/spread-sheet-widget
>
> installs these files:
>
> fritz@debian:~/s$ dpkg --contents libspread-sheet-widget_0.6-2_amd64.deb
> drwxr-xr-x root/root 0 2020-08-14 11:36 ./
> drwxr-xr-x root/root 0 2020-08-14 11:36 ./usr/
> drwxr-xr-x root/root 0 2020-08-14 11:36 ./usr/lib/
> drwxr-xr-x root/root 0 2020-08-14 11:36 ./usr/lib/x86_64-linux-gnu/
> -rw-r--r-- root/root 133032 2020-08-14 11:36 ./usr/lib/x86_64-linux-gnu/libspread-sheet-widget.so.0.0.0
> drwxr-xr-x root/root 0 2020-08-14 11:36 ./usr/share/
> drwxr-xr-x root/root 0 2020-08-14 11:36 ./usr/share/doc/
> drwxr-xr-x root/root 0 2020-08-14 11:36 ./usr/share/doc/libspread-sheet-widget/
> -rw-r--r-- root/root 515 2020-08-14 11:36 ./usr/share/doc/libspread-sheet-widget/changelog.Debian.gz
> -rw-r--r-- root/root 3641 2020-08-13 07:00 ./usr/share/doc/libspread-sheet-widget/changelog.gz
> -rw-r--r-- root/root 1095 2020-08-13 09:54 ./usr/share/doc/libspread-sheet-widget/copyright
> drwxr-xr-x root/root 0 2020-08-14 11:36 ./usr/share/info/
> -rw-r--r-- root/root 3107 2020-08-14 11:36 ./usr/share/info/spread-sheet-widget.info.gz
> drwxr-xr-x root/root 0 2020-08-14 11:36 ./usr/share/lintian/
> drwxr-xr-x root/root 0 2020-08-14 11:36 ./usr/share/lintian/overrides/
> -rw-r--r-- root/root 58 2020-08-13 09:54 ./usr/share/lintian/overrides/libspread-sheet-widget
> lrwxrwxrwx root/root 0 2020-08-14 11:36 ./usr/lib/x86_64-linux-gnu/libspread-sheet-widget.so.0 -> libspread-sheet-widget.so.0.0.0
>
> In version 0.6-1 the package was marked „Multi-arch: same“ but the hinter claimed that the info file
>
> /usr/share/info/spread-sheet-widget.info.gz
>
> was different on different architectures. Therefore I removed the Multi-arch tag. I am pretty sure that
> the info files are not architecture or build dependent so I wonder why this happens. I think they should
> not be marked as „file conflict“ in https://wiki.debian.org/MultiArch/Hints
Thank you for contacting me about this. The original hint was:
| libspread-sheet-widget conflicts on /usr/share/info/spread-sheet-widget.info.gz on amd64 <-> arm64, armel, armhf, and 5 more
If you doubt the hinter's judgement, we can simply verify it. I went
ahead and downloaded the amd64 and arm64 instances of
libspread-sheet-widget versioned 0.6-2 and this is what I got:
$ sha1sum */usr/share/info/spread-sheet-widget.info.gz
ef38b2ed6072dedcd454cf3fc40b68d2bde155bc amd64/usr/share/info/spread-sheet-widget.info.gz
3c7a0d05ec47d89ddb9fc0a77add5cfab2670b81 arm64/usr/share/info/spread-sheet-widget.info.gz
$
So those files really are different. Coinstalling them results in an
unpack error. I agree that they shouldn't differ.
We can use diffoscope to figure out what differs here:
$ diffoscope */usr/share/info/spread-sheet-widget.info.gz
--- amd64/usr/share/info/spread-sheet-widget.info.gz
+++ arm64/usr/share/info/spread-sheet-widget.info.gz
├── spread-sheet-widget.info
│ @@ -1,12 +1,12 @@
│ 00000000: 5468 6973 2069 7320 7370 7265 6164 2d73 This is spread-s
│ 00000010: 6865 6574 2d77 6964 6765 742e 696e 666f heet-widget.info
│ 00000020: 2c20 7072 6f64 7563 6564 2062 7920 6d61 , produced by ma
│ 00000030: 6b65 696e 666f 2076 6572 7369 6f6e 2036 keinfo version 6
│ -00000040: 2e37 2066 726f 6d0a 7370 7265 6164 2d73 .7 from.spread-s
│ +00000040: 2e35 2066 726f 6d0a 7370 7265 6164 2d73 .5 from.spread-s
│ 00000050: 6865 6574 2d77 6964 6765 742e 7465 7869 heet-widget.texi
│ 00000060: 2e0a 0a54 6869 7320 6d61 6e75 616c 2069 ...This manual i
│ 00000070: 7320 666f 7220 474e 5520 5370 7265 6164 s for GNU Spread
│ 00000080: 2053 6865 6574 2057 6964 6765 7420 7665 Sheet Widget ve
│ 00000090: 7273 696f 6e20 302e 362e 0a0a 2020 2043 rsion 0.6... C
│ 000000a0: 6f70 7972 6967 6874 2028 4329 2032 3031 opyright (C) 201
│ 000000b0: 372c 2032 3032 3020 4a6f 686e 2044 6172 7, 2020 John Dar
│ @@ -509,10 +509,8 @@
│ 00001fc0: 7720 746f 2075 7064 6174 650a 6461 7461 w to update.data
│ 00001fd0: 2e20 2049 7420 6973 2074 6865 2070 726f . It is the pro
│ 00001fe0: 6772 616d 6d65 7227 7320 7265 7370 6f6e grammer's respon
│ 00001ff0: 7369 6269 6c69 7479 2074 6f20 646f 2074 sibility to do t
│ 00002000: 6869 732e 0a0a 0a1f 0a54 6167 2054 6162 his......Tag Tab
│ 00002010: 6c65 3a0a 4e6f 6465 3a20 546f 707f 3733 le:.Node: Top.73
│ 00002020: 320a 1f0a 456e 6420 5461 6720 5461 626c 2...End Tag Tabl
│ -00002030: 650a 0a1f 0a4c 6f63 616c 2056 6172 6961 e....Local Varia
│ -00002040: 626c 6573 3a0a 636f 6469 6e67 3a20 7574 bles:.coding: ut
│ -00002050: 662d 380a 456e 643a 0a f-8.End:.
│ +00002030: 650a e.
$
So these packages were built with different versions of makeinfo
producing different output. Such tool-induced differences happen from
time to time. The hinter only looks at what files differ, not how. This
is a limitation of the technique. If you just binNMU the package, the
difference should go away as texinfo has been built everywhere.
Nevertheless, the difference in content makes coinstallation fail on
user systems. Therefore, I think it is useful to report. I'm not sure
whether I can address this in the hinter in a reasonable way beyond
mentioning it on the wiki page.
Beyond this, I think the package should be named libspread-sheet-widget0
to reflect on the soname. It also is a good idea to include
documentation in shared library packages, but the -dev or other packages
instead as most users will not interact with the package directly unless
they install the development package.
Helmut
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