diff --git a/CUDA.make b/CUDA.make
index 2434754..9a7ec88 100644
--- a/CUDA.make
+++ b/CUDA.make
@@ -1,4 +1,4 @@
 
 cuda-stream: main.cpp CUDAStream.cu
-	nvcc -std=c++11 -O3 -DCUDA $^ -o $@
+	nvcc -std=c++11 -O3 -DCUDA $^ $(EXTRA_FLAGS) -o $@
 
diff --git a/Kokkos.make b/Kokkos.make
index e30826c..78e2eaa 100644
--- a/Kokkos.make
+++ b/Kokkos.make
@@ -17,10 +17,10 @@ TARGET_DEF =
 endif
 
 kokkos-stream: main.o KOKKOSStream.o
-	$(CXX) $(KOKKOS_LDFLAGS) $^ $(KOKKOS_LIBS) -o $@ -DKOKKOS $(TARGET_DEF) -O3
+	$(CXX) $(KOKKOS_LDFLAGS) $^ $(KOKKOS_LIBS) -o $@ -DKOKKOS $(TARGET_DEF) -O3 $(EXTRA_FLAGS)
 
 %.o:%.cpp $(KOKKOS_CPP_DEPENDS)
-	$(COMPILER) $(KOKKOS_CPPFLAGS) $(KOKKOS_CXXFLAGS) -c $< -DKOKKOS $(TARGET_DEF) -O3
+	$(COMPILER) $(KOKKOS_CPPFLAGS) $(KOKKOS_CXXFLAGS) -c $< -DKOKKOS $(TARGET_DEF) -O3 $(EXTRA_FLAGS)
 
 .PHONY: clean
 clean:
diff --git a/OpenCL.make b/OpenCL.make
index 447deca..f48be82 100644
--- a/OpenCL.make
+++ b/OpenCL.make
@@ -1,4 +1,4 @@
 
 ocl-stream: main.cpp OCLStream.cpp
-	$(CXX) -O3 -std=c++11 -DOCL $^ -lOpenCL -o $@
+	$(CXX) -O3 -std=c++11 -DOCL $^ $(EXTRA_FLAGS) -lOpenCL -o $@
 
diff --git a/RAJA.make b/RAJA.make
index 72cc5a6..0f9cd61 100644
--- a/RAJA.make
+++ b/RAJA.make
@@ -28,5 +28,5 @@ CFLAGS = --expt-extended-lambda -O3 -std=c++11 -x cu -Xcompiler -fopenmp
 endif
 
 raja-stream: main.cpp RAJAStream.cpp
-	$(COMP) $(CFLAGS) -DUSE_RAJA -I$(RAJA_PATH)/include $^ -L$(RAJA_PATH)/lib -lRAJA -o $@
+	$(COMP) $(CFLAGS) -DUSE_RAJA -I$(RAJA_PATH)/include $^ $(EXTRA_FLAGS) -L$(RAJA_PATH)/lib -lRAJA -o $@