add some garbage

BloubWorld/povstuff.f90

@@ -13,6 +13,7 @@ module povstuff
   contains               ! -----------------------------------------
 
   subroutine show_bbox( bbox )
+    implicit none
     type (t_boundb), intent(in)     :: bbox
 
     print *, bbox%bbminx, bbox%bbminy, bbox%bbminz
@@ -23,6 +24,7 @@ module povstuff
   ! ----------------------------------------------------------------
 
   subroutine start_of_inc_file (fd)
+    implicit none
     integer, intent (in)             :: fd
 
     write(fd, '(A)') "// DON'T EDIT THIS FILE !"