diff -rupN eigen-eigen-07105f7124f9/CMakeLists.txt eigen-eigen-07105f7124f9-new/CMakeLists.txt
--- eigen-eigen-07105f7124f9/CMakeLists.txt	2016-02-16 14:26:15.000000000 +0100
+++ eigen-eigen-07105f7124f9-new/CMakeLists.txt	2016-02-17 09:44:43.556543936 +0100
@@ -324,6 +324,11 @@ install(FILES
   DESTINATION ${INCLUDE_INSTALL_DIR} COMPONENT Devel
   )
 
+install(FILES
+  cmake/FindEigen3.cmake
+  DESTINATION ${CMAKE_INSTALL_PREFIX}/share/cmake/Modules
+  )
+
 if(EIGEN_BUILD_PKGCONFIG)
     configure_file(eigen3.pc.in eigen3.pc @ONLY)
     install(FILES ${CMAKE_CURRENT_BINARY_DIR}/eigen3.pc