I see my mistake now, I used awk -f checklinks.awk * rather than make check_links. By using my command I included backzone which has the "duplicates": $ grep -E 'Africa/Asmera|Antarctica/South_Pole|Asia/Chungking' * backward:Link Africa/Nairobi Africa/Asmera backward:Link Pacific/Auckland Antarctica/South_Pole backward:Link Asia/Shanghai Asia/Chungking backzone:Link Africa/Asmara Africa/Asmera backzone:Link Antarctica/McMurdo Antarctica/South_Pole backzone:Link Asia/Chongqing Asia/Chungking (snip) Thank you for your help and Thank you for including a complete check of Links and Zones at my modest suggestion. Daniel Schultze On Mon, Sep 14, 2015 at 6:48 PM Paul Eggert <eggert@cs.ucla.edu> wrote:
Daniel Schultze wrote:
While working on a project related to timezone conversion I found that there are a couple of Links that have multiple mappings. I found the problem in tzdata2015f. I have attatched a patch to the checklinks.awk file which lists links with more than one mapping.
Thanks, I tried that patch, but "make check_links" did not report any problems. What problems did you observe?