42 lines
1.7 KiB
CMake
42 lines
1.7 KiB
CMake
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###############################################################################
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# Find Eigen3
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#
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# This sets the following variables:
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# EIGEN_FOUND - True if Eigen was found.
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# EIGEN_INCLUDE_DIRS - Directories containing the Eigen include files.
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# EIGEN_DEFINITIONS - Compiler flags for Eigen.
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# EIGEN_VERSION - Package version
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find_package(PkgConfig QUIET)
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pkg_check_modules(PC_EIGEN eigen3)
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set(EIGEN_DEFINITIONS ${PC_EIGEN_CFLAGS_OTHER})
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find_path(EIGEN_INCLUDE_DIR Eigen/Core
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HINTS "${EIGEN_ROOT}" "$ENV{EIGEN_ROOT}" ${PC_EIGEN_INCLUDEDIR} ${PC_EIGEN_INCLUDE_DIRS}
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PATHS "$ENV{PROGRAMFILES}/Eigen" "$ENV{PROGRAMW6432}/Eigen"
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"$ENV{PROGRAMFILES}/Eigen3" "$ENV{PROGRAMW6432}/Eigen3"
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PATH_SUFFIXES eigen3 include/eigen3 include)
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if(EIGEN_INCLUDE_DIR)
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file(READ "${EIGEN_INCLUDE_DIR}/Eigen/src/Core/util/Macros.h" _eigen_version_header)
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string(REGEX MATCH "define[ \t]+EIGEN_WORLD_VERSION[ \t]+([0-9]+)" _eigen_world_version_match "${_eigen_version_header}")
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set(EIGEN_WORLD_VERSION "${CMAKE_MATCH_1}")
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string(REGEX MATCH "define[ \t]+EIGEN_MAJOR_VERSION[ \t]+([0-9]+)" _eigen_major_version_match "${_eigen_version_header}")
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set(EIGEN_MAJOR_VERSION "${CMAKE_MATCH_1}")
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string(REGEX MATCH "define[ \t]+EIGEN_MINOR_VERSION[ \t]+([0-9]+)" _eigen_minor_version_match "${_eigen_version_header}")
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set(EIGEN_MINOR_VERSION "${CMAKE_MATCH_1}")
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set(EIGEN_VERSION ${EIGEN_WORLD_VERSION}.${EIGEN_MAJOR_VERSION}.${EIGEN_MINOR_VERSION})
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endif()
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set(EIGEN_INCLUDE_DIRS ${EIGEN_INCLUDE_DIR})
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include(FindPackageHandleStandardArgs)
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find_package_handle_standard_args(Eigen DEFAULT_MSG EIGEN_INCLUDE_DIR)
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mark_as_advanced(EIGEN_INCLUDE_DIR)
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if(EIGEN_FOUND)
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message(STATUS "Eigen found (include: ${EIGEN_INCLUDE_DIRS}, version: ${EIGEN_VERSION})")
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endif()
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