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authorR. van twisk <ries.van.twisk@ing.com>2019-12-02 13:37:11 +0100
committerR. van twisk <ries.van.twisk@ing.com>2019-12-02 13:37:11 +0100
commitf92e25c733d1f436570752918594f4c703431479 (patch)
tree3200e9f24e7527a1131bd3c4bb00dd99c97b2f9e /cmake/FindEigen3.cmake
parent59379882f0c746d6c6e571fed8293ff043514bd6 (diff)
Fix find_package for Eigen3
Diffstat (limited to 'cmake/FindEigen3.cmake')
-rw-r--r--cmake/FindEigen3.cmake24
1 files changed, 20 insertions, 4 deletions
diff --git a/cmake/FindEigen3.cmake b/cmake/FindEigen3.cmake
index b43208f9..bbad2298 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>
@@ -61,19 +67,29 @@ if (EIGEN3_INCLUDE_DIR)
else (EIGEN3_INCLUDE_DIR)
- find_path(EIGEN3_INCLUDE_DIR NAMES signature_of_eigen3_matrix_library
+ # 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()
endif(EIGEN3_INCLUDE_DIR)
- #include(FindPackageHandleStandardArgs)
- #find_package_handle_standard_args(Eigen3 DEFAULT_MSG EIGEN3_INCLUDE_DIR EIGEN3_VERSION_OK)
+ include(FindPackageHandleStandardArgs)
+ find_package_handle_standard_args(Eigen3 DEFAULT_MSG EIGEN3_INCLUDE_DIR EIGEN3_VERSION_OK)
mark_as_advanced(EIGEN3_INCLUDE_DIR)