1.2.2 インストールターゲットは常に DESTDIR=${STAGEDIR}

• アプリのMakefileのインストール先に${DESTDIR}を必ず付けること
  リスト 1 editors/xemacs の例

  	      もともと DESTDIR 無しなので以下のパッチを Makefile.in.in に加える
  	    --- Makefile.in.in.orig	2005-01-31 11:54:47.000000000 +0900
  +++ Makefile.in.in	2016-04-13 06:42:10.468570000 +0900
  @@ -97,7 +97,7 @@
   ## subdirectories of this directory.  The default values for many of
   ## the variables below are expressed in terms of this one, so you may
   ## not need to change them.  This defaults to /usr/local.
  -prefix=@prefix@
  +prefix=${DESTDIR}@prefix@
   
   ## Variable data (as per each program update) goes here
   ## The default is ${PROGNAME}
  @@ -132,14 +132,14 @@
   libdir=@libdir@
   
  ## Where to install XEmacs's man pages, and what extension they should \
      have.
  -mandir=@mandir@
  +mandir=${DESTDIR}@mandir@/man1
   manext=.1
   
   ## Where to install and expect the info files describing XEmacs.  In the
   ## past, this defaulted to a subdirectory of ${prefix}/lib/xemacs, but
   ## since there are now many packages documented with the texinfo
   ## system, it is inappropriate to imply that it is part of XEmacs.
  -infodir=@infodir@
  +infodir=${DESTDIR}@infodir@
  

• *installターゲットでも全て${STAGEDIR}...にインストール
  リスト 2 editors/xemacs の例

  post-install:
  .for f in b2m ctags ellcc etags gnuclient xemacs-${XEMACS_VER}
  	${STRIP_CMD} ${STAGEDIR}${PREFIX}/bin/${f}
  .endfor
  	${MKDIR} ${STAGEDIR}${PREFIX}/lib/xemacs/site-lisp
  	${CHMOD} 755 ${STAGEDIR}${PREFIX}/lib/xemacs/site-lisp
  	${RM} -f ${STAGEDIR}${PREFIX}/bin/send-pr
  .if ${PORT_OPTIONS:MX11} && ${PORT_OPTIONS:MDESKTOP}
  	${INSTALL_DATA} ${WRKDIR}/xemacs.desktop \
  		${STAGEDIR}${PREFIX}/share/applications
  .endif