diff --git a/CMakeLists.txt b/CMakeLists.txt
index 416290df..768b334a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -46,12 +46,17 @@ else()
 	add_flags_cxx("-pthread")
 endif()
 
-# Allow for a forced 32-bit build under 32-bit OS:
+# Allow for a forced 32-bit build under 64-bit OS:
 if (FORCE_32)
 	add_flags_cxx("-m32")
 	add_flags_lnk("-m32")
 endif()
 
+#have the compiler generate code spercificly targeted at the current machine on Linux
+if(LINUX AND NOT CROSSCOMPILE)
+	add_flags_cxx("-march=native")
+endif()
+
 # Set lower warnings-level for the libraries:
 if (MSVC)
 	# Remove /W3 from command line -- cannot just cancel it later with /w like in unix, MSVC produces a D9025 warning (option1 overriden by option2)