diff --git a/openacc/Makefile b/openacc/Makefile
index 3327610f..c82a9281 100644
--- a/openacc/Makefile
+++ b/openacc/Makefile
@@ -10,7 +10,7 @@ include ../Make.inc
 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) 
@@ -21,6 +21,7 @@ CINCLUDES=
 # 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
 
 # Library name
 LIBNAME=libpsb_openacc.a
@@ -42,7 +43,8 @@ ilib: $(OBJS)
 	$(MAKE) -C impl lib 
 
 psb_oacc_mod.o  : psb_i_oacc_vect_mod.o psb_d_oacc_vect_mod.o \
-	psb_d_oacc_csr_mat_mod.o 
+	psb_d_oacc_csr_mat_mod.o
+
 clean: cclean iclean
 	/bin/rm -f  $(FOBJS) *$(.mod) *.a
 veryclean: clean
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