In order for Gentoo Linux to properly support side-by-side installation of different versions of Lua (including LuaJIT), please migrate this package as to lua.eclass (for packages which should support multiple Lua implementations at the same time, i.e. most likely Lua modules) or lua-single.eclass (for packages which only have to support one Lua implementation at a time). For details, consult documentation of respective eclasses as well as already-migrated ebuilds in the tree. Please note that since slotted dev-lang/lua is currently masked, your migrated ebuilds should be masked as well. There is a section of package.mask, created in September 2020, which you can use for this purpose so that it will be easier in the future to unmask them all in one go. Thank you in advance for your effort!
gimp-2.99.2 and -9999 currently require lua only in runtime and don't use lua to build plugins and extensions that are provided by gimp and just installed into package directory. Lua presence is only checked on configuration phase. It seems that in this situation lua-single.eclass is suitable, isn't it?
I would say you are correct. That's how I have treated most packages which do run-time Lua evaluation anyway.
In some ported ebuilds I see LUA_COMPAT=( luajit ) but I don't see any information about this implementation in devmanual or directly within lua{,-single}.eclass code. @Marek Szuba could you please provide the url to description of that and "LUAJIT_*" etc? The development gimp versions depend from dev-lang/luajit and dev-lua/lgi.
If you look inside lua-utils.eclass you will find that luajit is in fact very much on the list of supported implementations. Not sure what else you need, IIRC the only difference between LuaJIT and other implementations as far as eclasses are concerned is that "luac" created by the wrapper is in fact /bin/true.
Attaching migrated ebuilds, please review - especially the migration to EAPI-7, in particular the list of DEPEND atoms which should be moved to BDEPEND.
Created attachment 679263 [details] gimp-2.99.2-r100.ebuild
Created attachment 679266 [details] gimp-9999.ebuild
Finally, moving this to the non-blocking tracker thanks to the fact neither of the lua-revdep GIMP ebuilds have any keywords.
The bug has been closed via the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=52b195c1624b27428e4fca190e0ab4316cf52d2d commit 52b195c1624b27428e4fca190e0ab4316cf52d2d Author: Marek Szuba <marecki@gentoo.org> AuthorDate: 2020-12-26 22:15:10 +0000 Commit: Marek Szuba <marecki@gentoo.org> CommitDate: 2020-12-26 23:18:19 +0000 media-gfx/gimp/gimp: migrate to lua-single.eclass Latest 2.99 and the live ebuild; older versions do not depend on Lua. Approved by the maintainer via comment in the GitHub PR #18768. Also includes the requested Pango version bump in the dependencies of 9999. Closes: https://bugs.gentoo.org/752747 Closes: https://bugs.gentoo.org/755962 Signed-off-by: Marek Szuba <marecki@gentoo.org> media-gfx/gimp/gimp-2.99.2-r100.ebuild | 257 +++++++++++++++++++++++++++++++++ media-gfx/gimp/gimp-9999.ebuild | 32 ++-- 2 files changed, 277 insertions(+), 12 deletions(-)
