From 50085d2c28bcd4e3b8e1eb2e11dec60312cb8ac3 Mon Sep 17 00:00:00 2001
From: Silvio Traversaro <pegua1@gmail.com>
Date: Thu, 7 Aug 2014 15:48:53 +0000
Subject: FindEigen3.cmake: Add reading hints of Eigen directory location from
 environment variables EIGEN3_ROOT and EIGEN3_ROOT_DIR .

---
 cmake/FindEigen3.cmake | 9 +++++++++
 1 file changed, 9 insertions(+)

(limited to 'cmake/FindEigen3.cmake')

diff --git a/cmake/FindEigen3.cmake b/cmake/FindEigen3.cmake
index 9c546a05d..cea1afeab 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>
@@ -62,6 +68,9 @@ if (EIGEN3_INCLUDE_DIR)
 else (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}
-- 
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