configure.ac | 5 1 + 4 - 0 !
1 file changed, 1 insertion(+), 4 deletions(-)

---

src/e-mail-formatter-evolution-rss.c | 11 11 + 0 - 0 !
src/rss.c | 18 18 + 0 - 0 !
2 files changed, 29 insertions(+)

 adapt to changes in evolution 3.21.90

configure.ac | 3 3 + 0 - 0 !
1 file changed, 3 insertions(+)

 auto-disable webkit support when compiled against evolution 3.21.90+

It's optional and the code uses the mail formatter, not its own web engine,
which seems to be sufficient. Furthermore, evolution-rss uses WebKit1, but
WebKit2 is used in the evolution since 3.21.90 and these two cannot be
used together, thus rather disable WebKit code here.