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cmake: add minimum required eigen3 version

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Andrej730
2026-09-16 13:59:44 +05:00
parent a5dec54719
commit 8c2ea9eb8b
7 changed files with 25 additions and 7 deletions
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cmake/FindEigen3.cmake
+15 -1
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@@ -10,11 +10,25 @@
UNIFY_ENVVARS_AND_CACHE(EIGEN_DIR)
if(EXISTS "${EIGEN_DIR}")
file(STRINGS "${EIGEN_DIR}/Eigen/src/Core/util/Macros.h" eigen_version_world_line REGEX "^#define EIGEN_WORLD_VERSION")
file(STRINGS "${EIGEN_DIR}/Eigen/src/Core/util/Macros.h" eigen_version_major_line REGEX "^#define EIGEN_MAJOR_VERSION")
file(STRINGS "${EIGEN_DIR}/Eigen/src/Core/util/Macros.h" eigen_version_minor_line REGEX "^#define EIGEN_MINOR_VERSION")
string(REGEX REPLACE "^#define EIGEN_WORLD_VERSION ([0-9]+)$" "\\1" eigen_version_world "${eigen_version_world_line}")
string(REGEX REPLACE "^#define EIGEN_MAJOR_VERSION ([0-9]+)$" "\\1" eigen_version_major "${eigen_version_major_line}")
string(REGEX REPLACE "^#define EIGEN_MINOR_VERSION ([0-9]+)$" "\\1" eigen_version_minor "${eigen_version_minor_line}")
set(Eigen3_VERSION "${eigen_version_world}.${eigen_version_major}.${eigen_version_minor}")
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(Eigen3
REQUIRED_VARS EIGEN_DIR
VERSION_VAR Eigen3_VERSION
)
# Mimic Eigen3Config.cmake target.
add_library(Eigen3::Eigen INTERFACE IMPORTED)
target_include_directories(Eigen3::Eigen INTERFACE "${EIGEN_DIR}")
else()
find_package(Eigen3 CONFIG)
find_package(Eigen3 ${Eigen3_FIND_VERSION} CONFIG)
if(Eigen3_DIR)
message(STATUS "Eigen3: found config at '${Eigen3_DIR}'.")
else()