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# Copyright (C) 2011 Maxime Reis, LAAS-CNRS.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
# SEARCH_FOR_EIGEN
# -----------------
#
# This macro gets eigen include path from pkg-config file, and adds it include directories.
MACRO(SEARCH_FOR_EIGEN)
SET(_Eigen_FOUND 0)
SET(_Eigen_REQUIRED "eigen3 >= 3.0.0")
PKG_CHECK_MODULES(_Eigen REQUIRED ${_Eigen_REQUIRED})
IF(NOT ${_Eigen_FOUND})
MESSAGE(FATAL_ERROR "Check that package Eigen is installed in a directory pointed out by PKG_CONFIG_PATH.")
ENDIF(NOT ${_Eigen_FOUND})
SET(${PROJECT_NAME}_CXX_FLAGS "${${PROJECT_NAME}_CXX_FLAGS} ${_Eigen_CFLAGS}")
SET(${PROJECT_NAME}_LINK_FLAGS "${${PROJECT_NAME}_LINK_FLAGS} ${_Eigen_LDFLAGS}")
STRING(REGEX REPLACE "-I" "" Eigen_INCLUDE_DIR ${_Eigen_CFLAGS})
INCLUDE_DIRECTORIES( ${Eigen_INCLUDE_DIR} )
ENDMACRO(SEARCH_FOR_EIGEN)
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