Re: [tz] tzdb-2018b does not work after make clean

大山俊成 wrote:

I realized tzdata.zi was not correct( it contained just 2 comment lines). So, I upgraded awk that generate tzdata.zi ( mawk 1.3.3 -> gawk 4.0.1).

Thanks for the info; it helped me reproduce the portability problem, which is that mawk 1.3.3 does not support regular expressions like [[:alpha:]], even though POSIX requires support. The workaround is simple and straightforward, so I installed the attached patch into the development version, and it should appear in the next tzdb release.