shim FTBFS in Kinetic

I've copied what I hope is the relevant part of the log below.

In file included from /usr/include/string.h:535,
                 from /<<PKGBUILDDIR>>/include/system/string.h:3,
                 from shim.h:48,
                 from test-str.c:14:
In function ‘strncpy’,
    inlined from ‘test_strncpy’ at test-str.c:936:2:
/usr/include/x86_64-linux-gnu/bits/string_fortified.h:95:10: error: ‘strncpy’ destination unchanged after copying no bytes [-Werror=stringop-truncation]
   95 | return __builtin___strncpy_chk (__dest, __src, __len,
      | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   96 | __glibc_objsize (__dest));
      | ~~~~~~~~~~~~~~~~~~~~~~~~~
In function ‘strncpy’,
    inlined from ‘test_strncpy’ at test-str.c:936:2:
/usr/include/x86_64-linux-gnu/bits/string_fortified.h:95:10: error: ‘strncpy’ destination unchanged after copying no bytes [-Werror=stringop-truncation]
   95 | return __builtin___strncpy_chk (__dest, __src, __len,
      | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   96 | __glibc_objsize (__dest));
      | ~~~~~~~~~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors