File date-macro.patch of Package date
--- date-052eebaf0086e6bbc5ead01c3f1a8f02496aa701/include/date/tz.h~ 2022-12-13 10:47:32.379657849 +0000 +++ date-052eebaf0086e6bbc5ead01c3f1a8f02496aa701/include/date/tz.h 2022-12-13 10:51:18.045464254 +0000 @@ -44,7 +44,8 @@ // Technically any OS may use the mapping process but currently only Windows does use it. #ifndef USE_OS_TZDB -# define USE_OS_TZDB 0 +// Changed to 1 for Fedora to match how libdate-tz.so is built. +# define USE_OS_TZDB 1 #endif #ifndef HAS_REMOTE_API