ports/55669: emacs20 and emacs21 override each other as default emacs version

[Jari Kirma]

>Number:         55669
>Category:       ports
>Synopsis:       emacs20 and emacs21 override each other as default emacs version
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-ports-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          change-request
>Submitter-Id:   current-users
>Arrival-Date:   Sun Aug 17 06:50:12 PDT 2003
>Closed-Date:
>Last-Modified:
>Originator:     Jari Kirma
>Release:        FreeBSD 4.8-STABLE i386
>Organization:
Helsinki University of Technology
>Environment:
>Description:
	editors/emacs20 and editors/emacs21 both install bin/emacs,
        which can lead to unintentional default binary changes especially
        when portupgrade is used.
        (At least it seems like this has happened to me.)
>How-To-Repeat:
	Install/upgrade both ports/packages and try out which emacs version
        is run by default.
>Fix:
	As other ports that implement graceful coexistence of multiple
        versions of binaries, leaving selection of the system-wide default
        to the system administrator with symlinks. To aid this, bin/emacs20
        and bin/emacs21 should be created to avoid breaking symlinks with
        minor version bumps.


>Release-Note:
>Audit-Trail:
>Unformatted:
 >System: FreeBSD xxx.cs.hut.fi 4.8-STABLE FreeBSD 4.8-STABLE #5: Wed Aug 13 15:34:53 EEST 2003 kirma at xxx.cs.hut.fi:/usr/src/sys/compile/XXX i386