Use -DOCTINTERP_DLL when compiling convenience libaries in libinterp. * libinterp/corefcn/module.mk (corefcn_libcorefcn_la_CPPFLAGS): New variable, defined to $(liboctinterp_la_CPPFLAGS). * libinterp/interp-core/module.mk (interp_core_libinterp_core_la_CPPFLAGS): Likewise. * libinterp/interpfcn/module.mk (interpfcn_libinterpfcn_la_CPPFLAGS): Likewise. * libinterp/octave-value/module.mk (octave_value_liboctave_value_la_CPPFLAGS): Likewise. * libinterp/parse-tree/module.mk (parse_tree_libparse_tree_la_CPPFLAGS): Likewise.

((nil .
      ((c-file-style . "gnu")
       (indent-tabs-mode . nil)
       (fill-column . 72)
       (eval . (when (string-match "\\.h\\'" (buffer-file-name))
                 (unless (string-match "/gnulib/" (buffer-file-name))
                   (c++-mode)
                   (c-set-style "gnu"))))))
 (change-log-mode . ((indent-tabs-mode . t)))
 (makefile-mode . ((indent-tabs-mode . t))))