luminance-hdr: Could not find a package configuration file provided by "Eigen3"

[ryandesign (Ryan Carsten Schmidt)]

luminance-hdr fails to build on all OS versions:

​https://build.macports.org/builders/ports-10.15_x86_64-builder/builds/37850/steps/install-port/logs/stdio

CMake Error at CMakeLists.txt:172 (FIND_PACKAGE):
  By not providing "FindEigen3.cmake" in CMAKE_MODULE_PATH this project has
  asked CMake to find a package configuration file provided by "Eigen3", but
  CMake did not find one.

  Could not find a package configuration file provided by "Eigen3" with any
  of the following names:

    Eigen3Config.cmake
    eigen3-config.cmake

  Add the installation prefix of "Eigen3" to CMAKE_PREFIX_PATH or set
  "Eigen3_DIR" to a directory containing one of the above files.  If "Eigen3"
  provides a separate development package or SDK, be sure it has been
  installed.

I guess it wants a dependency on the eigen3 port?

[MarcusCalhoun-Lopez (Marcus Calhoun-Lopez)]

In a8132924fe13a73e8f60c8bd6bf72d19e8565669/macports-ports (master):

luminance-hdr: update to 2.6.1.1 & add missing deps

Fixes #61141