psblas3:

Fix interace problem in test/matgen.

test/serial/d_matgen.f03

@@ -30,7 +30,7 @@ program d_matgen
   integer            :: iter, itmax,itrace, istopc, irst
   integer(psb_long_int_k_) :: amatsize, precsize, descsize
   real(psb_dpk_)   :: err, eps
-  class(psb_d_cxx_sparse_mat), allocatable :: acxx
+  type(psb_d_cxx_sparse_mat) :: acxx
   
   ! other variables
   integer            :: info, err_act
@@ -144,7 +144,7 @@ contains
     integer, parameter             :: nb=20
     real(psb_dpk_), allocatable    :: b(:),xv(:)
     type(psb_desc_type)            :: desc_a
-    class(psb_d_base_sparse_mat), allocatable :: mold
+    class(psb_d_base_sparse_mat)   :: mold
     integer                        :: ictxt, info
     character                      :: afmt*5
     type(psb_dspmat_type)    :: a