Temporary header file '/tmp/w_uAOZLDBr/dump1.h' with the following content will be compiled to create GCC translation unit dump:

  // add defines
  #define __STDC_VERSION__ 201710L
#define _GXX_NULLPTR_T
#define CLUTTER_ENABLE_COMPOSITOR_API 1
#define _REGEX_NELTS(n)
#define _Atomic
#define PACKED
#define getaddrinfo_a(a,b,c,d)

  // add includes
  #include "/usr/include/opengv/Indices.hpp"
  #include "/usr/include/opengv/OptimizationFunctor.hpp"
  #include "/usr/include/opengv/absolute_pose/AbsoluteAdapterBase.hpp"
  #include "/usr/include/opengv/absolute_pose/AbsoluteMultiAdapterBase.hpp"
  #include "/usr/include/opengv/absolute_pose/CentralAbsoluteAdapter.hpp"
  #include "/usr/include/opengv/absolute_pose/MACentralAbsolute.hpp"
  #include "/usr/include/opengv/absolute_pose/MANoncentralAbsolute.hpp"
  #include "/usr/include/opengv/absolute_pose/NoncentralAbsoluteAdapter.hpp"
  #include "/usr/include/opengv/absolute_pose/NoncentralAbsoluteMultiAdapter.hpp"
  #include "/usr/include/opengv/absolute_pose/methods.hpp"
  #include "/usr/include/opengv/absolute_pose/modules/Epnp.hpp"
  #include "/usr/include/opengv/absolute_pose/modules/gp3p/modules.hpp"
  #include "/usr/include/opengv/absolute_pose/modules/gpnp1/modules.hpp"
  #include "/usr/include/opengv/absolute_pose/modules/gpnp2/modules.hpp"
  #include "/usr/include/opengv/absolute_pose/modules/gpnp3/modules.hpp"
  #include "/usr/include/opengv/absolute_pose/modules/gpnp4/modules.hpp"
  #include "/usr/include/opengv/absolute_pose/modules/gpnp5/modules.hpp"
  #include "/usr/include/opengv/absolute_pose/modules/main.hpp"
  #include "/usr/include/opengv/absolute_pose/modules/upnp2.hpp"
  #include "/usr/include/opengv/absolute_pose/modules/upnp4.hpp"
  #include "/usr/include/opengv/math/Sturm.hpp"
  #include "/usr/include/opengv/math/arun.hpp"
  #include "/usr/include/opengv/math/cayley.hpp"
  #include "/usr/include/opengv/math/gauss_jordan.hpp"
  #include "/usr/include/opengv/math/quaternion.hpp"
  #include "/usr/include/opengv/math/roots.hpp"
  #include "/usr/include/opengv/point_cloud/MAPointCloud.hpp"
  #include "/usr/include/opengv/point_cloud/PointCloudAdapter.hpp"
  #include "/usr/include/opengv/point_cloud/PointCloudAdapterBase.hpp"
  #include "/usr/include/opengv/point_cloud/methods.hpp"
  #include "/usr/include/opengv/relative_pose/CentralRelativeAdapter.hpp"
  #include "/usr/include/opengv/relative_pose/CentralRelativeMultiAdapter.hpp"
  #include "/usr/include/opengv/relative_pose/CentralRelativeWeightingAdapter.hpp"
  #include "/usr/include/opengv/relative_pose/MACentralRelative.hpp"
  #include "/usr/include/opengv/relative_pose/MANoncentralRelative.hpp"
  #include "/usr/include/opengv/relative_pose/MANoncentralRelativeMulti.hpp"
  #include "/usr/include/opengv/relative_pose/NoncentralRelativeAdapter.hpp"
  #include "/usr/include/opengv/relative_pose/NoncentralRelativeMultiAdapter.hpp"
  #include "/usr/include/opengv/relative_pose/RelativeAdapterBase.hpp"
  #include "/usr/include/opengv/relative_pose/RelativeMultiAdapterBase.hpp"
  #include "/usr/include/opengv/relative_pose/methods.hpp"
  #include "/usr/include/opengv/relative_pose/modules/eigensolver/modules.hpp"
  #include "/usr/include/opengv/relative_pose/modules/fivept_kneip/modules.hpp"
  #include "/usr/include/opengv/relative_pose/modules/fivept_nister/modules.hpp"
  #include "/usr/include/opengv/relative_pose/modules/fivept_stewenius/modules.hpp"
  #include "/usr/include/opengv/relative_pose/modules/ge/modules.hpp"
  #include "/usr/include/opengv/relative_pose/modules/main.hpp"
  #include "/usr/include/opengv/relative_pose/modules/sixpt/modules.hpp"
  #include "/usr/include/opengv/sac/Lmeds.hpp"
  #include "/usr/include/opengv/sac/MultiRansac.hpp"
  #include "/usr/include/opengv/sac/MultiSampleConsensus.hpp"
  #include "/usr/include/opengv/sac/MultiSampleConsensusProblem.hpp"
  #include "/usr/include/opengv/sac/Ransac.hpp"
  #include "/usr/include/opengv/sac/SampleConsensus.hpp"
  #include "/usr/include/opengv/sac/SampleConsensusProblem.hpp"
  #include "/usr/include/opengv/sac/implementation/Lmeds.hpp"
  #include "/usr/include/opengv/sac/implementation/MultiRansac.hpp"
  #include "/usr/include/opengv/sac/implementation/MultiSampleConsensus.hpp"
  #include "/usr/include/opengv/sac/implementation/MultiSampleConsensusProblem.hpp"
  #include "/usr/include/opengv/sac/implementation/Ransac.hpp"
  #include "/usr/include/opengv/sac/implementation/SampleConsensus.hpp"
  #include "/usr/include/opengv/sac/implementation/SampleConsensusProblem.hpp"
  #include "/usr/include/opengv/sac_problems/absolute_pose/AbsolutePoseSacProblem.hpp"
  #include "/usr/include/opengv/sac_problems/absolute_pose/MultiNoncentralAbsolutePoseSacProblem.hpp"
  #include "/usr/include/opengv/sac_problems/point_cloud/PointCloudSacProblem.hpp"
  #include "/usr/include/opengv/sac_problems/relative_pose/CentralRelativePoseSacProblem.hpp"
  #include "/usr/include/opengv/sac_problems/relative_pose/EigensolverSacProblem.hpp"
  #include "/usr/include/opengv/sac_problems/relative_pose/MultiCentralRelativePoseSacProblem.hpp"
  #include "/usr/include/opengv/sac_problems/relative_pose/MultiNoncentralRelativePoseSacProblem.hpp"
  #include "/usr/include/opengv/sac_problems/relative_pose/NoncentralRelativePoseSacProblem.hpp"
  #include "/usr/include/opengv/sac_problems/relative_pose/RotationOnlySacProblem.hpp"
  #include "/usr/include/opengv/sac_problems/relative_pose/TranslationOnlySacProblem.hpp"
  #include "/usr/include/opengv/triangulation/methods.hpp"
  #include "/usr/include/opengv/types.hpp"

The GCC parameters:
  gcc -fdump-lang-raw -fkeep-inline-functions -c -x c++ -fpermissive -w "/tmp/w_uAOZLDBr/dump1.h"

In file included from /tmp/w_uAOZLDBr/dump1.h:12:
/usr/include/opengv/Indices.hpp:41:10: fatal error: Eigen/Eigen: No such file or directory
   41 | #include <Eigen/Eigen>
      |          ^~~~~~~~~~~~~
compilation terminated.