From 60e6ac31784d903326abea68983d4702a236085d Mon Sep 17 00:00:00 2001
From: Benoit Jacob <jacob.benoit.1@gmail.com>
Date: Thu, 25 Jun 2009 01:06:53 +0200
Subject: use system variable instead of custom one

---
 cmake/FindEigen2.cmake | 19 ++++++++++++-------
 1 file changed, 12 insertions(+), 7 deletions(-)

(limited to 'cmake/FindEigen2.cmake')

diff --git a/cmake/FindEigen2.cmake b/cmake/FindEigen2.cmake
index 74e183e24..0e86aaf29 100644
--- a/cmake/FindEigen2.cmake
+++ b/cmake/FindEigen2.cmake
@@ -1,4 +1,9 @@
 # - Try to find Eigen2 lib
+#
+# This module supports requiring a minimum version, e.g. you can do
+#   find_package(Eigen2 2.0.3)
+# to require version 2.0.3 to newer of Eigen2.
+#
 # Once done this will define
 #
 #  EIGEN2_FOUND - system has eigen lib with correct version
@@ -9,7 +14,7 @@
 # Copyright (c) 2008, 2009 Gael Guennebaud, <g.gael@free.fr>
 # Redistribution and use is allowed according to the terms of the BSD license.
 
-if(NOT EIGEN2_MIN_VERSION)
+if(NOT Eigen2_FIND_VERSION)
   if(NOT Eigen2_FIND_VERSION_MAJOR)
     set(Eigen2_FIND_VERSION_MAJOR 2)
   endif(NOT Eigen2_FIND_VERSION_MAJOR)
@@ -20,8 +25,8 @@ if(NOT EIGEN2_MIN_VERSION)
     set(Eigen2_FIND_VERSION_PATCH 0)
   endif(NOT Eigen2_FIND_VERSION_PATCH)
 
-  set(EIGEN2_MIN_VERSION "${Eigen2_FIND_VERSION_MAJOR}.${Eigen2_FIND_VERSION_MINOR}.${Eigen2_FIND_VERSION_PATCH}")
-endif(NOT EIGEN2_MIN_VERSION)
+  set(Eigen2_FIND_VERSION "${Eigen2_FIND_VERSION_MAJOR}.${Eigen2_FIND_VERSION_MINOR}.${Eigen2_FIND_VERSION_PATCH}")
+endif(NOT Eigen2_FIND_VERSION)
 
 macro(_eigen2_check_version)
   file(READ "${EIGEN2_INCLUDE_DIR}/Eigen/src/Core/util/Macros.h" _eigen2_version_header LIMIT 5000 OFFSET 1000)
@@ -34,16 +39,16 @@ macro(_eigen2_check_version)
   set(EIGEN2_MINOR_VERSION "${CMAKE_MATCH_1}")
 
   set(EIGEN2_VERSION ${EIGEN2_WORLD_VERSION}.${EIGEN2_MAJOR_VERSION}.${EIGEN2_MINOR_VERSION})
-  if(${EIGEN2_VERSION} VERSION_LESS ${EIGEN2_MIN_VERSION})
+  if(${EIGEN2_VERSION} VERSION_LESS ${Eigen2_FIND_VERSION})
     set(EIGEN2_VERSION_OK FALSE)
-  else(${EIGEN2_VERSION} VERSION_LESS ${EIGEN2_MIN_VERSION})
+  else(${EIGEN2_VERSION} VERSION_LESS ${Eigen2_FIND_VERSION})
     set(EIGEN2_VERSION_OK TRUE)
-  endif(${EIGEN2_VERSION} VERSION_LESS ${EIGEN2_MIN_VERSION})
+  endif(${EIGEN2_VERSION} VERSION_LESS ${Eigen2_FIND_VERSION})
 
   if(NOT EIGEN2_VERSION_OK)
   
     message(STATUS "Eigen2 version ${EIGEN2_VERSION} found in ${EIGEN2_INCLUDE_DIR}, "
-                   "but at least version ${EIGEN2_MIN_VERSION} is required")
+                   "but at least version ${Eigen2_FIND_VERSION} is required")
   endif(NOT EIGEN2_VERSION_OK)
 endmacro(_eigen2_check_version)
 
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