pkg/49538: compile editors/emacs24-nox11 with libxml2

[ta2gch%gmail.com@localhost]

>Number:         49538
>Category:       pkg
>Synopsis:       compile editors/emacs24-nox11 with libxml2
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    pkg-manager
>State:          open
>Class:          change-request
>Submitter-Id:   net
>Arrival-Date:   Mon Jan 05 07:55:01 +0000 2015
>Originator:     Masaya TANIGUCHI
>Release:        CURRENT
>Organization:
None
>Environment:
Linux HOST 3.13.0-43-generic #72-Ubuntu SMP Mon Dec 8 19:35:06 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux

>Description:
latest emacs contains eww.el (for browsing website or manual )
it depends on libxml2.
"PKG_OPTIONS.emacs= +xml" isn't available in editors/emacs24-nox11
>How-To-Repeat:
$ echo "PKG_OPTIONS.emacs= xml" >> mk.conf
..
$ cd editors/emacs24-nox11
$ bmake install clean
..
$ ldd ${PKG}/bin/emacs

>Fix:
in editors/emacs24-nox11/options.mk

---

PKG_OPTIONS_VAR=        PKG_OPTIONS.emacs
PKG_SUPPORTED_OPTIONS=  xml
PKG_SUGGESTERD_OPTIONS= xml
.include "../../mk/bsd.options.mk"

###
### Support XML2
###
.  if !empty(PKG_OPTIONS:Mxml)
USE_TOOLS+=             pkg-config
BUILDLINK_API_DEPENDS.libxml2+= libxml2>=2.6.17
.include "../../textproc/libxml2/buildlink3.mk"
.  else
CONFIGURE_ARGS+=        --without-xml2
.  endif

---

in editors/emacs24-nox11/Makefile

.include "options.mk"