diff --git a/Makefile b/Makefile
index ad40d6da..945d519c 100644
--- a/Makefile
+++ b/Makefile
@@ -72,7 +72,7 @@ FE_VERSION=v2.6.2
 CC=gcc
 CXX=g++
 CFLAGS=
-CXXFLAGS=-std=c++11
+CXXFLAGS=-std=c++11 $(EXTRA_CXXFLAGS)
 CPPFLAGS=
 STRIP=strip
 OBJCOPY=objcopy