Bug#851772: nmu: madplay_0.15.2b-8.1

[Andreas Beckmann <anbe@debian.org>]

On 2017-01-18 18:54, Emilio Pozuelo Monfort wrote:
> On 18/01/17 17:38, Andreas Beckmann wrote:
>> Package: release.debian.org

>> nmu madplay_0.15.2b-8.1 . ANY . unstable . -m "Rebuild against libid3tag 0.15.1b-12"
>>
>> adequate reports:
>>
>>       madplay: symbol-size-mismatch /usr/bin/madplay => id3_build
>>
>> madplay was built against libid3tag 0.15.1b-11 (which was itself built
>> in 2014), while 0.15.1b-12 was built two years later with a newer
>> toolchain ...
> 
> If libid3tag's ABI changed, then it needs to rename it's binary package.

It's a const char[] that changed content (and length) between builds,
not sure whether this qualifies for an ABI break. But I agree that such
symbols should not be used.

char const id3_build[] = ""
# if defined(DEBUG)
  "DEBUG "
# elif defined(NDEBUG)
  "NDEBUG "
# endif

# if defined(EXPERIMENTAL)
  "EXPERIMENTAL "
# endif
;

> Also have you checked that no other rdeps are affected?

It's the only package in sid and stretch where adequate (called via
piuparts) reports this mismatch.


in jessie (0.15.1b-11):

$ nm -D -S /usr/lib/libid3tag.so.0.3.0 | grep id3_build
0000000000010490 0000000000000008 R id3_build

$ hd -n 8 -s 0x10490 /usr/lib/libid3tag.so.0.3.0
00010490  4e 44 45 42 55 47 20 00                           |NDEBUG .|

in sid (0.15.1b-12):

$ nm -D -S /usr/lib/x86_64-linux-gnu/libid3tag.so.0.3.0 | grep id3_build
0000000000010b10 0000000000000001 R id3_build

$ hd -n 1 -s 0x10b10 /usr/lib/x86_64-linux-gnu/libid3tag.so.0.3.0
00010b10  00                                                |.|


Andreas