Ihor Radchenko <yantar92@posteo.net> writes:

> So, we should probably override `org-export-coding-system', even when it
> is set. iCalendar demands UTF8 anyway.

Also, ox-icalendar already sets ":ascii-charset utf-8" in the ext-plist
during export.

> We likely want (according to 34.10.1 Basic Concepts of Coding Systems):

I attach a new patch, which takes the approach of converting to
utf-8-dos in `org-icalendar-after-save-hook', instead of converting
newlines in `org-icalendar-fold-string'.

I think this way is simpler, and should be more robust across locales.

Note, this means the string returned by `org-export-as' won't contain
CRLF. Instead, the newlines are converted during post-process.