diff --git a/openacc/Makefile b/openacc/Makefile
index 3590249c..aae571ad 100644
--- a/openacc/Makefile
+++ b/openacc/Makefile
@@ -11,7 +11,7 @@ OFFLOAD=-fopenacc -foffload=nvptx-none="-march=sm_70"
 LIBDIR=../lib
 INCDIR=../include
 MODDIR=../modules
-IMPLDIR=./impl  # Adding the impl directory
+IMPLDIR=./impl 
 
 # Include and library paths
 INCLUDES=-I$(LIBDIR) -I$(INCDIR) -I$(MODDIR) -I$(IMPLDIR)
@@ -20,6 +20,7 @@ LIBS=-L$(LIBDIR) -lpsb_util -lpsb_ext -lpsb_base -lopenblas -lmetis
 # Source files
 FOBJS= psb_i_oacc_vect_mod.o psb_d_oacc_vect_mod.o \
 	psb_oacc_mod.o  psb_d_oacc_csr_mat_mod.o \
+	psb_oacc_env_mod.o \
 	impl/psb_d_oacc_csr_vect_mv.o 
 
 # Library name
diff --git a/openacc/psb_oacc_env_mod.F90 b/openacc/psb_oacc_env_mod.F90
new file mode 100644
index 00000000..83c9426d
--- /dev/null
+++ b/openacc/psb_oacc_env_mod.F90
@@ -0,0 +1,18 @@
+module psb_oacc_env_mod
+contains
+
+    subroutine psb_oacc_init(ctxt, dev)
+        use psb_penv_mod
+        use psb_const_mod
+        use psb_error_mod
+        type(psb_ctxt_type), intent(in) :: ctxt
+        integer, intent(in), optional :: dev
+
+    end subroutine psb_oacc_init
+
+    subroutine psb_oacc_exit()
+        integer :: res
+
+    end subroutine psb_oacc_exit
+
+end module psb_oacc_env_mod
diff --git a/openacc/psb_oacc_mod.F90 b/openacc/psb_oacc_mod.F90
index ce5e85f9..fe827db8 100644
--- a/openacc/psb_oacc_mod.F90
+++ b/openacc/psb_oacc_mod.F90
@@ -1,6 +1,8 @@
 module psb_oacc_mod
     use psb_const_mod
 
+    use psb_oacc_env_mod
+
     use psb_d_oacc_vect_mod
     use psb_d_oacc_csr_mat_mod