From bb5bcac7b0bd62ac2f648ec323da75227a2f1c70 Mon Sep 17 00:00:00 2001
From: nmarticorena <nicolas.marticorena.vidal@gmail.com>
Date: Fri, 22 May 2026 16:09:53 +1000
Subject: [PATCH] modern cmake

---
 CMakeLists.txt         |  2 +-
 cmake/FindEigen3.cmake | 17 ++++-------------
 2 files changed, 5 insertions(+), 14 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index ec9dcc34..965609ee 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -152,7 +152,7 @@ target_link_libraries(franka PRIVATE
   TinyXML2::TinyXML2
   Poco::Foundation
   Poco::Net
-  Eigen3::Eigen3
+  Eigen3::Eigen
   Threads::Threads
   pinocchio::pinocchio
 )
diff --git a/cmake/FindEigen3.cmake b/cmake/FindEigen3.cmake
index dc2fb7c9..b4c230d6 100644
--- a/cmake/FindEigen3.cmake
+++ b/cmake/FindEigen3.cmake
@@ -1,16 +1,7 @@
-find_package(Eigen3 CONFIG)
-mark_as_advanced(FORCE Eigen3_DIR)
+find_package(Eigen3 REQUIRED CONFIG)
 
-include(FindPackageHandleStandardArgs)
-find_package_handle_standard_args(Eigen3
-  FOUND_VAR Eigen3_FOUND
-  REQUIRED_VARS EIGEN3_INCLUDE_DIRS
-)
+mark_as_advanced(FORCE Eigen3_DIR)
 
-if(NOT TARGET Eigen3::Eigen3)
-  add_library(Eigen3::Eigen3 INTERFACE IMPORTED)
-  set_target_properties(Eigen3::Eigen3 PROPERTIES
-    INTERFACE_INCLUDE_DIRECTORIES ${EIGEN3_INCLUDE_DIRS}
-    INTERFACE_COMPILE_DEFINITIONS "${EIGEN3_DEFINITIONS}"
-  )
+if(NOT TARGET Eigen3::Eigen)
+  message(FATAL_ERROR "Eigen3 was found, but target Eigen3::Eigen is not available")
 endif()