Pkgsrc changes:
* fix some pkglint warining
* add DESTDIR support.
Changes:
* Fix a bug of exclusive control when dictionary is opened in MultiThreading environment.
* When installing the Windows version, it came to be able to specify the character-code of the dictionary.
* Fix a problem that was not able to be compiled correctly by some compilers.
* Add API that changes partial, analytical mode (Tagger::set_partial())
* Add API that changes generation level of lattice (Tagger::set_lattice_level())
* Add API that changes temperature parameter (Tagger::set_theta())
* Add API that changes all candidate output mode (Tagger::set_all_morphs())
then automatically generate a PLIST that says "${PKGNAME} has no files".
* If PLIST_SRC and GENERATE_PLIST are not set in a package Makefile,
and no PLIST files exist, then fail during the package build with
PKG_FAIL_REASON.
* Remove "intentionally empty" PLISTs again.
Now, the easy way to say that a package installs no files is to just
add the following to the package Makefile:
PLIST_SRC= # empty
