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Bug 618104

Summary: media-gfx/darktable Add lua support (via use flag) once dev-lang/lua-5.3 is unmasked
Product: Gentoo Linux Reporter: schmittlauch <t.schmittlauch+gentoo>
Component: Current packagesAssignee: Marek Szuba <marecki>
Severity: enhancement CC: johnnybit, jstein, maekke, simon
Priority: Normal    
Version: unspecified   
Hardware: All   
OS: Linux   
Package list:
Runtime testing required: ---
Bug Depends on: 407091    
Bug Blocks:    
Attachments: darktable 2.2.5 ebuild with lua enabled

Description schmittlauch 2017-05-10 12:09:28 UTC
This is already a TODO in the ebuild, but I think it's good having a bug to subscribe to.
Comment 1 schmittlauch 2017-05-11 21:15:12 UTC
There's also the possibility of bundling lua-5.2 until it's unmasked as a system package.
Comment 2 urcindalo 2017-05-17 10:54:46 UTC
(In reply to t.schmittlauch+gentoo from comment #1)
> There's also the possibility of bundling lua-5.2 until it's unmasked as a
> system package.

Yes, it would be great to enjoy lua support in darktable.
Comment 3 Nick 2017-06-07 19:42:13 UTC
I managed to get lua working with darktable using a slotted lua and a dirty hack in ebuild, as I failed to do it properly ( see this discussion )
I've unmasked and installed lua 5.2, eselected it, then dt compiled and lua seems to work, at least few scripts I tested yet.

If somebody is able to improve my hack to make cmake to correctly pass the -isystem parameter, we'll have a decent solution...
Comment 4 Nick 2017-06-10 19:26:18 UTC
Created attachment 475936 [details]
darktable 2.2.5 ebuild with lua enabled
Comment 5 Nick 2017-06-10 19:26:37 UTC
UPDATE to my comment #3
The issue appeared to reside in lua5.2.pc file (see link to the discussion in my previous post).
It reads Cflags: -I${includedir} instead of
         Cflags: -I${includedir}/${lib_name_include}
So far I fixed it manually, but I ought to file a bug about it. 
So here comes the working ebuild.
Comment 6 Nick 2017-06-10 19:36:43 UTC
Apparently there is a bug about this already for about a year... Ohh...
Comment 7 Marek Szuba archtester gentoo-dev 2020-06-18 13:01:37 UTC
Still waiting for lua-5.2.
Comment 8 Marek Szuba archtester gentoo-dev 2020-09-30 15:14:51 UTC
For the record, current versions of darktable require lua-5.3+.
Comment 9 Larry the Git Cow gentoo-dev 2020-09-30 15:41:45 UTC
The bug has been closed via the following commit(s):

commit 9cb5ef5c3e97c72b45c015fb9bb38d7209e67030
Author:     Marek Szuba <>
AuthorDate: 2020-09-30 15:28:00 +0000
Commit:     Marek Szuba <>
CommitDate: 2020-09-30 15:41:37 +0000

    media-gfx/darktable: enable Lua support
    Looks like it will still take a lot of time before we have lua-5.3
    available in the tree, slotted or not. Fortunately it turns out that
    recent versions of Darktable come with bundled Lua 5.3 which can
    optionally be used instead of system version.
    Signed-off-by: Marek Szuba <>

 media-gfx/darktable/darktable-3.2.1-r1.ebuild | 151 ++++++++++++++++++++++++++
 media-gfx/darktable/darktable-9999.ebuild     |   9 +-
 2 files changed, 156 insertions(+), 4 deletions(-)