libical version 3.x has been released and I can no longer build orage against libical on Fedora.
Here is the build log - https://koji.fedoraproject.org/koji/taskinfo?taskID=23079238
Please take a look. I will be able to test patches. Thanks.
Created attachment 7438
patch for building against libical 3.x
Patch from downstream bug report. Thanks to Milan Crha for the patch.
Created attachment 7625
slightly different fix
This version has guards, so that older versions of libical still get the is_utc flag set (I think this is necessary for proper functioning)
I too see the same error
The orage project is not maintained anymore and has been archived. Closing bugs.