diff options
Diffstat (limited to 'cmake/FindEigen3.cmake')
| -rw-r--r-- | cmake/FindEigen3.cmake | 30 |
1 files changed, 23 insertions, 7 deletions
diff --git a/cmake/FindEigen3.cmake b/cmake/FindEigen3.cmake index 9c546a05d..9e9697860 100644 --- a/cmake/FindEigen3.cmake +++ b/cmake/FindEigen3.cmake @@ -9,6 +9,12 @@ # EIGEN3_FOUND - system has eigen lib with correct version # EIGEN3_INCLUDE_DIR - the eigen include directory # EIGEN3_VERSION - eigen version +# +# This module reads hints about search locations from +# the following enviroment variables: +# +# EIGEN3_ROOT +# EIGEN3_ROOT_DIR # Copyright (c) 2006, 2007 Montel Laurent, <montel@kde.org> # Copyright (c) 2008, 2009 Gael Guennebaud, <g.gael@free.fr> @@ -60,13 +66,23 @@ if (EIGEN3_INCLUDE_DIR) set(EIGEN3_FOUND ${EIGEN3_VERSION_OK}) else (EIGEN3_INCLUDE_DIR) - - find_path(EIGEN3_INCLUDE_DIR NAMES signature_of_eigen3_matrix_library - PATHS - ${CMAKE_INSTALL_PREFIX}/include - ${KDE4_INCLUDE_DIR} - PATH_SUFFIXES eigen3 eigen - ) + + # search first if an Eigen3Config.cmake is available in the system, + # if successful this would set EIGEN3_INCLUDE_DIR and the rest of + # the script will work as usual + find_package(Eigen3 ${Eigen3_FIND_VERSION} NO_MODULE QUIET) + + if(NOT EIGEN3_INCLUDE_DIR) + find_path(EIGEN3_INCLUDE_DIR NAMES signature_of_eigen3_matrix_library + HINTS + ENV EIGEN3_ROOT + ENV EIGEN3_ROOT_DIR + PATHS + ${CMAKE_INSTALL_PREFIX}/include + ${KDE4_INCLUDE_DIR} + PATH_SUFFIXES eigen3 eigen + ) + endif(NOT EIGEN3_INCLUDE_DIR) if(EIGEN3_INCLUDE_DIR) _eigen3_check_version() |