So nominally this is a bug in the vlc ebuild, but arguably it's really a bug in lua-single.eclass. Surface problem: USE=-lua emerge =media-video/vlc-3.0.11.1-r100 fails with the following: * No Lua implementation selected for the build. Please set * the LUA_SINGLE_TARGET variable in your make.conf to one * of the following values: * * lua5-1 lua5-2 * ERROR: media-video/vlc-3.0.11.1-r100::gentoo failed (setup phase): * No supported Lua implementation in LUA_SINGLE_TARGET. * * Call stack: * ebuild.sh, line 125: Called pkg_setup * ebuild.sh, line 355: Called lua-single_pkg_setup * lua-single.eclass, line 536: Called lua_setup * lua-single.eclass, line 526: Called die * The specific snippet of code: * die "No supported Lua implementation in LUA_SINGLE_TARGET." Note the USE=-lua: Why is it asking me to set LUA_SINGLE_TARGET when a lua isn't pulled in? AFAICT the nominal solution would be a pkg_setup like this: pkg_setup() { use lua && lua-single_pkg_setup } However, it seems to me a better solution would be to have lua-single.eclass make that LUA_SINGLE_TARGET test conditional on some LUA* var (presently in the eclass or if necessary new) set by the ebuild. Then ebuilds using it wouldn't have to override its exported pkg_setup just to add the conditional. (I searched existing bugs for both the vlc...-r100 and lua-single.eclass and didn't find an existing bug. Hopefully I didn't miss one, tho of course this and another could be being filed at the same time.)
The bug has been closed via the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=2140581df4f203a1b4e8c21c38cfe7e64f45513d commit 2140581df4f203a1b4e8c21c38cfe7e64f45513d Author: Mike Gilbert <floppym@gentoo.org> AuthorDate: 2020-12-25 00:23:51 +0000 Commit: Mike Gilbert <floppym@gentoo.org> CommitDate: 2020-12-25 00:23:51 +0000 media-video/vlc: avoid calling lua-single_pkg_setup when USE='-lua' Closes: https://bugs.gentoo.org/761535 Signed-off-by: Mike Gilbert <floppym@gentoo.org> media-video/vlc/vlc-3.0.11.1-r100.ebuild | 6 ++++++ media-video/vlc/vlc-3.0.9999.ebuild | 6 ++++++ media-video/vlc/vlc-9999.ebuild | 6 ++++++ 3 files changed, 18 insertions(+)
