Does GTSAM use a custom patched Eigen?

[Paul Furgale]

We are starting to use GTSAM with our own libraries and we ran into some troubles with our system version of Eigen vs. the GTSAM version. @hannessommer found this:

$~/catkin_ws/devel/include/eigen3/Eigen$ diff ./src/Core/CommaInitializer.h ~/tmp/gtsam/gtsam-3.1.0/gtsam/3rdparty/Eigen/Eigen/src/Core/CommaInitializer.h 
28c28,29
< struct CommaInitializer
---
> struct CommaInitializer :
>   public internal::dense_xpr_base<CommaInitializer<XprType> >::type

Does GTSAM require a patched Eigen?

[Chris Beall]

Yes, three different patches have been applied to our copy (see issue #10). One of them has already been accepted by the Eigen team, but we need to follow up on the other two.

[Chris Beall]

We are tracking progress on this in issue #10, so I'll close this issue.