cmake: prefer using Eigen configuration files

- for better compatibility with Ceres 2.0.0 CMake scripts
4 years ago · a6e15b2f57
parent 97eaddd93b
commit a6e15b2f57
1 changed files with 6 additions and 1 deletions
--- a/cmake/OpenCVFindLibsPerf.cmake
+++ b/cmake/OpenCVFindLibsPerf.cmake
@ -51,7 +51,12 @@ endif(WITH_CUDA)

 # --- Eigen ---
 if(WITH_EIGEN AND NOT HAVE_EIGEN)
-  find_package(Eigen3 QUIET)
+  if(NOT OPENCV_SKIP_EIGEN_FIND_PACKAGE_CONFIG)
+    find_package(Eigen3 CONFIG QUIET)  # Ceres 2.0.0 CMake scripts doesn't work with CMake's FindEigen3.cmake module (due to missing EIGEN3_VERSION_STRING)
+  endif()
+  if(NOT Eigen3_FOUND)
+    find_package(Eigen3 QUIET)
+  endif()

  if(Eigen3_FOUND)
    if(TARGET Eigen3::Eigen)