From: Roland Stigge <stigge@antcom.de>
Subject: Remove -march=native; fixes FTBFS on several architectures

--- a/Makefile
+++ b/Makefile
@@ -195,7 +195,7 @@
 #
 
 CXXFLAGS += $(patsubst %,-I%,$(INC_DIRS))
-CXXFLAGS += -O2 -Wall -Wextra -march=native -Wno-parentheses -std=c++14
+CXXFLAGS += -O2 -Wall -Wextra -Wno-parentheses -std=c++14
 CXXFLAGS += -g -D_GLIBCXX_USE_C99_MATH=1
 CPPFLAGS += -DNDEBUG
 
 # Add this for clang