I tried to build evolution with gtk3 (using base versions & patches above). Main part of libgweather patch is commited to git BTW. When I try to run evolution when I try to open 'new message window' it crashes:
Attachment:
gdb.txt
Description: Text document
Attachment:
evolution-data-server-2.31.4-gweather.patch
Description: Binary data
Attachment:
libgweather-2.30.0-gtk3.patch
Description: Binary data
Attachment:
evolution-2.31.4-gweather.patch
Description: Binary data