When loading ‚UTC‘ the function tzload seems to use an uninitialized value here:

 

localtime.c:574:

  for (i = 0; i < sp->typecnt; ++i)

    if (sp->types[i] == 0)             // <- sp->types[0] is uninitialized (sp->typecnt is 1)

      break;

 

It might be a user error on my side. But I am unable to spot it.

Note that the UTC file was generated with an older version.

 

This is with tzcode2014g

 

- Jörg