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Last active April 25, 2019 17:24
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Compiling with Eigen in Gentoo on ROS
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GentooROSEigen.md

You can install ROS melodic using a portage overlay. However, I was having a hard time compiling against the Eigen libraries. I fixed it by setting two variables

CMAKE_PREFIX_PATH=/usr:/opt/ros/melodic
CATKIN_PREFIX_PATH=/usr:/opt/ros/melodic

Since Eigen and OpenCV aren't installed alongside ROS on gentoo, you have to point to the system versions of these first. So putting /usr first prefers the system versions over the ones installed with ROS.

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