Bug 928157

Summary:	media-video/movit-1.6.3-r1 doesn't compile against dev-cpp/eigen-9999
Product:	Gentoo Linux	Reporter:	jonys <vidra.jonas>
Component:	Current packages	Assignee:	No maintainer - Look at https://wiki.gentoo.org/wiki/Project:Proxy_Maintainers if you want to take care of it <maintainer-needed>
Status:	UNCONFIRMED ---
Severity:	normal	CC:	vidra.jonas
Priority:	Normal
Version:	unspecified
Hardware:	All
OS:	Linux
Whiteboard:
Package list:		Runtime testing required:	---
Attachments:	build.log of the failed compilation Patch fixing movit compilation against eigen-9999

Description jonys 2024-03-30 09:14:42 UTC

Created attachment 889036 [details]
build.log of the failed compilation

The Git version of Eigen (dev-cpp/eigen-9999) needs a C++14-capable compiler to be usable (as of 2024-03-30). Since media-video/movit-1.6.3-r1 has a `CXXFLAGS="$CXXFLAGS -std=gnu++11"` line in its configure script, it fails to build against a recent Eigen checkout, producing many pages of errors, starting with:
```
In file included from /usr/include/eigen3/Eigen/Core:19,
                 from ycbcr.cpp:4:
/usr/include/eigen3/Eigen/src/Core/util/Macros.h:709:2: error: #error Eigen requires at least c++14 support.
  709 | #error Eigen requires at least c++14 support.
      |  ^~~~~
```

Building against the stable Eigen version, dev-cpp/eigen-3.4.0-r1, works fine, and the attached patch fixes the issue with the Git version.

The issue is known upstream and fixed in movit-1.7.0, see https://git.sesse.net/?p=movit;a=commit;h=f023440cc34f15c0c3bdb8de62c4e3a661ef068b

Comment 1 jonys 2024-03-30 09:16:40 UTC

Created attachment 889037 [details, diff]
Patch fixing movit compilation against eigen-9999