Bug#811575:

[David Malcolm]

(I'm the upstream gcc author of -Wmisleading-indentation)

The code in question seems to be here:

https://hg.mozilla.org/projects/nss/file/tip/lib/dbm/src/h_page.c#l117

and contains mixed spaces and tabs.  Detabifying at 8-spaces per tab
(though am not sure if this is what upstream nss use), I get:

        if(origin == SEEK_CUR)
      {
        if(offset < 1)
                return(lseek(fd, offset, SEEK_CUR));

                cur_pos = lseek(fd, 0, SEEK_CUR);

                if(cur_pos < 0)
                        return(cur_pos);
          }

IMHO the indentation here *is* misleading and hence the warning is
justified.

Hope this is constructive.