diff --git a/Kokkos.make b/Kokkos.make
index a09f762..e46236e 100644
--- a/Kokkos.make
+++ b/Kokkos.make
@@ -36,15 +36,18 @@ ifndef COMPILER
 define compiler_help
 Set COMPILER to change flags (defaulting to GNU).
 Available compilers are:
-  GNU INTEL
+  GNU INTEL CRAY PGI ARMCLANG
 
 endef
 $(info $(compiler_help))
 COMPILER=GNU
 endif
 
+COMPILER_ARMCLANG = armclang++
 COMPILER_GNU = g++
 COMPILER_INTEL = icpc -qopt-streaming-stores=always
+COMPILER_CRAY = CC
+COMPILER_PGI = pgc++
 CXX = $(COMPILER_$(COMPILER))
 
 ifndef TARGET
@@ -67,6 +70,14 @@ CXXFLAGS = -O3
 LINKFLAGS = # empty for now
 
 
+
+ifeq ($(COMPILER), GNU)
+ifeq ($(DEVICE), OpenMP)
+CXXFLAGS += -fopenmp
+LINKFLAGS += -fopenmp
+endif 
+endif
+
 include $(KOKKOS_PATH)/Makefile.kokkos
 
 kokkos-stream: $(OBJ) $(KOKKOS_LINK_DEPENDS)
diff --git a/OpenMP.make b/OpenMP.make
index d9e331a..5ead9ce 100644
--- a/OpenMP.make
+++ b/OpenMP.make
@@ -3,7 +3,7 @@ ifndef COMPILER
 define compiler_help
 Set COMPILER to change flags (defaulting to GNU).
 Available compilers are:
-  CLANG CRAY GNU INTEL XL PGI NEC
+  CLANG CRAY GNU INTEL XL PGI NEC ARMCLANG
 
 endef
 $(info $(compiler_help))
@@ -21,6 +21,7 @@ $(info $(target_help))
 TARGET=CPU
 endif
 
+COMPILER_ARMCLANG = armclang++
 COMPILER_GNU = g++
 COMPILER_INTEL = icpc
 COMPILER_CRAY = CC