Comment # 3 on bug 1155416 from Aaron Puchert

(In reply to Dan Cermak from comment #2)
> Could you please send out an announcement next time you completely change
> which libraries your package provides, so that dependent packages have some
> time to adjust?

Should I write to the mailing list? I fixed some packages myself (Mesa, clazy),
but it didn't occur to me to look for other packages that might also be
affected. Others fixed bcc [1] and creduce [2], and the remaining packages
using libclang seem broken for other reasons. (libqt5-creator doesn't compile,
pocl doesn't want to use clang9 at all for some reasons.)

It's mentioned in the change log, but I have to admit that the change log is
pretty long this time, so it might easily be missed.

[1] https://build.opensuse.org/request/show/744514
[2]
https://build.opensuse.org/package/rdiff/devel:tools/creduce?linkrev=base&rev=57