Failure to build Windows binaries on Ubuntu 20.04

[Jolly-Pirate]

Building Windows binaries on Ubuntu 20.04 gives the following error:

utiltime.cpp: In function ‘std::string FormatISO8601DateTime(int64_t)’:
utiltime.cpp:86:5: error: ‘gmtime_r’ was not declared in this scope; did you mean ‘gmtime_s’?
   86 |     gmtime_r(&time_val, &ts);
      |     ^~~~~~~~
      |     gmtime_s
utiltime.cpp: In function ‘std::string FormatISO8601Date(int64_t)’:
utiltime.cpp:97:5: error: ‘gmtime_r’ was not declared in this scope; did you mean ‘gmtime_s’?
   97 |     gmtime_r(&time_val, &ts);
      |     ^~~~~~~~
      |     gmtime_s
utiltime.cpp: In function ‘std::string FormatISO8601Time(int64_t)’:
utiltime.cpp:108:5: error: ‘gmtime_r’ was not declared in this scope; did you mean ‘gmtime_s’?
  108 |     gmtime_r(&time_val, &ts);
      |     ^~~~~~~~
      |     gmtime_s

[ghost]

I can build Windows binaries on Ubuntu 22.04 and Ubuntu 23.10. You can now build on Ubuntu.
This was missing. #152 (comment)
@ycagel

[ycagel]

Thanks for all the hard work @Jongjan88!