ports/183975: devel/sdl20: update to 2.0.1 broke apps compiled against 2.0.0

[Jan Kokemüller]

>Number:         183975
>Category:       ports
>Synopsis:       devel/sdl20: update to 2.0.1 broke apps compiled against 2.0.0
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-ports-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Thu Nov 14 22:50:00 UTC 2013
>Closed-Date:
>Last-Modified:
>Originator:     Jan Kokemüller
>Release:        10-STABLE
>Organization:
>Environment:
>Description:
Programs that have been compiled against the SDL2-2.0.0 package won't work with the 2.0.1 package because the library name changed from libSDL2-2.0.so.0 to libSDL2-2.0.so.1. I think upstream's intent is that programs keep working when there are only minor updates to the SDL library.

Other OSs use libSDL2-2.0.so.0 and libSDL2-2.0.so.0.1.0 for SDL2-2.0.1, keeping compatibility with apps linked against 2.0.0.
 - https://www.archlinux.org/packages/extra/x86_64/sdl2/
 - http://koji.fedoraproject.org/koji/rpminfo?rpmID=4545741

Something weird seems to be going on when building on FreeBSD. I will try to investigate further.
>How-To-Repeat:
- build some application against SDL2-2.0.0
- upgrade SDL to 2.0.1
- application stops working as it can't find libSDL2-2.0.so.0.
>Fix:


>Release-Note:
>Audit-Trail:
>Unformatted: