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⬆️ Update Eigen3 to version 5.0.1 #371

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Merged
burgholzer merged 1 commit into from
Jun 24, 2026
Merged

⬆️ Update Eigen3 to version 5.0.1 #371

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20 changes: 11 additions & 9 deletions cmake/ExternalDependencies.cmake
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Original file line number Diff line number Diff line change
Expand Up @@ -36,19 +36,24 @@ list(APPEND FETCH_PACKAGES mqt-core)

# ---------------------------------------------------------------------------------Fetch Eigen3
# cmake-format: off
set(EIGEN_VERSION 3.4.0
set(EIGEN_VERSION 5.0.1
CACHE STRING "Eigen3 version")
# cmake-format: on
FetchContent_Declare(
Eigen3
GIT_REPOSITORY https://gitlab.com/libeigen/eigen.git
GIT_TAG ${EIGEN_VERSION}
GIT_SHALLOW TRUE
# null is a non-existent subdirectory in Eigen3's repository, so add_subdirectory() becomes a
# no-op. This stops Eigen3's own CMakeLists.txt from running, which is only relevant for its
# documentation and tests.
SOURCE_SUBDIR null)
GIT_SHALLOW TRUE)
list(APPEND FETCH_PACKAGES Eigen3)
set(EIGEN_BUILD_TESTING
OFF
CACHE BOOL "Disable testing for Eigen")
set(BUILD_TESTING
OFF
CACHE BOOL "Disable general testing")
set(EIGEN_BUILD_DOC
OFF
CACHE BOOL "Disable documentation build for Eigen")

if(BUILD_MQT_DEBUGGER_TESTS)
set(gtest_force_shared_crt
Expand All @@ -65,8 +70,5 @@ endif()
# Make all declared dependencies available.
FetchContent_MakeAvailable(${FETCH_PACKAGES})

add_library(Eigen3::Eigen INTERFACE IMPORTED)
set_target_properties(Eigen3::Eigen PROPERTIES INTERFACE_INCLUDE_DIRECTORIES "${eigen3_SOURCE_DIR}")

# Hide Eigen3 warnings
get_target_property(Eigen3_Includes Eigen3::Eigen INTERFACE_INCLUDE_DIRECTORIES)
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