Upstream added -fno-rtti in version 1.1.9 with a questionable reason https://github.com/google/snappy/commit/c98344f6260d24d921e5e04006d4bedb528f404a Now I can't build dev-cpp/folly::guru https://github.com/facebook/folly/issues/1606 Archlinux users got the same issue https://bugs.archlinux.org/task/72058 Patch available here https://patch-diff.githubusercontent.com/raw/google/snappy/pull/129.patch
Well, it's enough to make ceph want to drop it: https://github.com/ceph/ceph/pull/4361 b/c of LevelDB. But I'd much rather someone sort this out with Google, not modify it downstream, given this stuff is often fragile.
Google already said that they care only about chromium https://github.com/google/snappy/pull/129#issuecomment-851666942
(In reply to Alessandro Barbieri from comment #2) > Google already said that they care only about chromium > https://github.com/google/snappy/pull/129#issuecomment-851666942 Changing this will likely break Chromium. So it's not that simple.
An options might be to build ceph/folly with -fno-rtti as well. Usually, RTTI is only required for typeid and dynamic_cast in C++. Compiler will bail out if one of the features is used without RTTI. Furthermore, mixing RTTI on and RTTI off is generally not a good idea, because it may break the C++ ODR rule.
Building folly with -fno-rtti will fail with error cannot use 'typeid' with '-fno-rtti'
Really, expecting reverse dependencies not to use RTTI because Google employees are incompetent is not a good idea.
Chromium is no longer using the system copy of Snappy after some discussion with the chromium@ team in Gentoo, so feel free to proceed w/o worrying about that.
The bug has been closed via the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=a34edd22137c9c34670aecd60ed75bbe65393c4a commit a34edd22137c9c34670aecd60ed75bbe65393c4a Author: Azamat H. Hackimov <azamat.hackimov@gmail.com> AuthorDate: 2021-10-24 17:07:44 +0000 Commit: Joonas Niilola <juippis@gentoo.org> CommitDate: 2021-11-17 07:48:07 +0000 app-arch/snappy: remove -fno-rtti option Remove -fno-rtti option which may broke compilation of dependant packages. Migrate to EAPI=8, minor cleanups. Closes: https://bugs.gentoo.org/819909 Package-Manager: Portage-3.0.20, Repoman-3.0.3 Signed-off-by: Azamat H. Hackimov <azamat.hackimov@gmail.com> Closes: https://github.com/gentoo/gentoo/pull/22699 Signed-off-by: Joonas Niilola <juippis@gentoo.org> .../snappy/files/snappy-1.1.9_remove-no-rtti.patch | 35 +++++++++++++++++ app-arch/snappy/snappy-1.1.9-r1.ebuild | 45 ++++++++++++++++++++++ 2 files changed, 80 insertions(+)
Should this be stabilised then, at some point?
