ORB_SLAM2 patch to disable -march=native

orbslam2_f2e6f51_marchnative_disabled.patch

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 08a8af4..8190289 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -7,8 +7,8 @@ ENDIF()
 
 MESSAGE("Build type: " ${CMAKE_BUILD_TYPE})
 
-set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS}  -Wall  -O3 -march=native ")
-set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall   -O3 -march=native")
+set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS}  -Wall  ")
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall   ")
 
 # Check C++11 or C++0x support
 include(CheckCXXCompilerFlag)
diff --git a/Thirdparty/DBoW2/CMakeLists.txt b/Thirdparty/DBoW2/CMakeLists.txt
index 0eb5126..db34af2 100644
--- a/Thirdparty/DBoW2/CMakeLists.txt
+++ b/Thirdparty/DBoW2/CMakeLists.txt
@@ -1,8 +1,8 @@
 cmake_minimum_required(VERSION 2.8)
 project(DBoW2)
 
-set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS}  -Wall  -O3 -march=native ")
-set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall  -O3 -march=native")
+set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS}  -Wall ")
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall ")
 
 set(HDRS_DBOW2
   DBoW2/BowVector.h
diff --git a/Thirdparty/g2o/CMakeLists.txt b/Thirdparty/g2o/CMakeLists.txt
index 620e688..ba8396c 100644
--- a/Thirdparty/g2o/CMakeLists.txt
+++ b/Thirdparty/g2o/CMakeLists.txt
@@ -54,8 +54,8 @@ IF(OPENMP_FOUND AND G2O_USE_OPENMP)
 ENDIF(OPENMP_FOUND AND G2O_USE_OPENMP)
 
 # Compiler specific options for gcc
-SET(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -O3 -march=native") 
-SET(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -O3 -march=native") 
+SET(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} ") 
+SET(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE}") 
 
 # activate warnings !!!
 SET(g2o_C_FLAGS "${g2o_C_FLAGS} -Wall -W")