(TODO)
- Build with following test combinations and 'gs including-Japanese.ps'
- Test combinations
  (1) Select one of two below
  PKG_OPTIONS.gs_type=	ghostscript-gpl
  PKG_OPTIONS.gs_type=	ghostscript-agpl

  (2)  put two lines at once (or not)
  PKG_OPTIONS.ghostscript-agpl+=	disable-compile-inits
  PKG_OPTIONS.ghostscript-gpl+=		disable-compile-inits

  (3)  Select gcr_type, for example:
  PKG_OPTIONS.gcr_type= ipa
  PKG_OPTIONS.gcr_type= adobe-cidfonts

- Check special case, 
   ghostscript is NEITHER compiled nor installed
   ghostscript is already compiled and installed without option shown above (2)
   ghostscript is already compiled and installed with option shown above (2)

(DONE)
- tested with following two lines in /etc/mk.conf  and (1) x 2 (2) x 2
case 1 2 3 4
  (and gs neither compiled nor installed)
  PKG_OPTIONS.gcr_type= ipa

- Following are set and from scratch
  PKG_OPTIONS.gs_type=	ghostscript-gpl

  PKG_OPTIONS.ghostscript-agpl+=       disable-compile-inits
  PKG_OPTIONS.ghostscript-gpl+= disable-compile-inits

  PKG_OPTIONS.gcr_type= -ipa
  PKG_OPTIONS.gcr_type= adobe-cidfonts

- Following case doesn't work for now
  PKG_OPTIONS.gs_type=ghostscript-agpl
  PKG_OPTIONS.ghostscript-agpl+=       disable-compile-inits
  PKG_OPTIONS.ghostscript+= disable-compile-inits
  PKG_OPTIONS.ghostscript-gpl+= disable-compile-inits

  PKG_OPTIONS.gcr_type= -ipa
  PKG_OPTIONS.gcr_type= adobe-cidfonts

- Following case WORKS
  PKG_OPTIONS.gs_type=ghostscript-agpl
  PKG_OPTIONS.ghostscript-agpl+=       disable-compile-inits
  PKG_OPTIONS.ghostscript+= disable-compile-inits
  PKG_OPTIONS.ghostscript-gpl+= disable-compile-inits

  PKG_OPTIONS.gcr_type= ipa
