debian/changelog

+flexbar (1:3.0.3-2) unstable; urgency=medium
+
+  * Do not build with -march=native
+    Closes: #873429
+
+ -- Andreas Tille <tille@debian.org>  Sun, 27 Aug 2017 22:08:09 +0200
+
 flexbar (1:3.0.3-1) unstable; urgency=medium
 
   * New upstream version

debian/patches/no_march_native.patch

+Author: Andreas Tille <tille@debian.org>
+Last-Update: Sun, 27 Aug 2017 22:04:31 +0200
+Bug-Debian: https://bugs.debian.org/873429
+Forwarded-Upstream: no
+Description: Do not build with -march=native
+
+--- a/src/CMakeLists.txt
++++ b/src/CMakeLists.txt
+@@ -11,8 +11,6 @@ else()
+ endif()
+ 
+ 
+-set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -march=native")
+-
+ if( CMAKE_SIZEOF_VOID_P MATCHES "8" )
+ 	message( STATUS "Flexbar 64 bit architecture" )
+ 	# if( WIN32 )

debian/patches/series

+no_march_native.patch