The subslot is needed to enable rebuilding on major version change. Currently, flatbuffers-2.0.0.ebuild doesn't specify a subslot: SLOT="0" This means that depending packages that were built against flatbuffers-1.* won't be rebuilt after emerging the 2.0.0 version, despite these two having different SONAMEs.
New major version number could have been a hint.
The bug has been closed via the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=78250007f070caaade82599a15f34e9d837350ed commit 78250007f070caaade82599a15f34e9d837350ed Author: Sam James <sam@gentoo.org> AuthorDate: 2021-09-07 16:52:01 +0000 Commit: Sam James <sam@gentoo.org> CommitDate: 2021-09-07 16:55:59 +0000 dev-libs/flatbuffers: add subslot for 2.x Bit of a frustrating one as it appears to be ABI compatible modulo the SONAME change, but it is what it is -- it's a good thing upstream adopted semver anyway. Closes: https://bugs.gentoo.org/812023 Signed-off-by: Sam James <sam@gentoo.org> .../{flatbuffers-2.0.0.ebuild => flatbuffers-2.0.0-r1.ebuild} | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) Additionally, it has been referenced in the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=060b7a191dec363d452f2a4abaeffa0eaedd0ebf commit 060b7a191dec363d452f2a4abaeffa0eaedd0ebf Author: Sam James <sam@gentoo.org> AuthorDate: 2021-09-07 16:55:28 +0000 Commit: Sam James <sam@gentoo.org> CommitDate: 2021-09-07 16:56:02 +0000 dev-libs/sink: add flatbuffers subslot operator Bug: https://bugs.gentoo.org/812023 Signed-off-by: Sam James <sam@gentoo.org> dev-libs/sink/{sink-0.8.0-r2.ebuild => sink-0.8.0-r3.ebuild} | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=ecb25cd9f927c900788f2555a19757aeaade01c8 commit ecb25cd9f927c900788f2555a19757aeaade01c8 Author: Sam James <sam@gentoo.org> AuthorDate: 2021-09-07 16:54:24 +0000 Commit: Sam James <sam@gentoo.org> CommitDate: 2021-09-07 16:56:00 +0000 media-tv/kodi: add flatbuffers subslot operator Bug: https://bugs.gentoo.org/812023 Signed-off-by: Sam James <sam@gentoo.org> media-tv/kodi/{kodi-19.0.ebuild => kodi-19.0-r1.ebuild} | 2 +- media-tv/kodi/{kodi-19.1.ebuild => kodi-19.1-r1.ebuild} | 2 +- media-tv/kodi/kodi-19.9999.ebuild | 2 +- media-tv/kodi/kodi-9999.ebuild | 2 +- 4 files changed, 4 insertions(+), 4 deletions(-)
(In reply to Andreas Sturmlechner from comment #1) > New major version number could have been a hint. You are right, I was silly and I forgot about it given it was otherwise compatible (just a version change for semver-adoption). Apologies.
