SUNWcsl .101 build version conflict

Recently, i went about the task of porting Audacity to OpenSolaris.When i build Audacity, one of the dependencies unsatisfied was libsndfile.When i went to the package manager, to my pleasure i found the package SUNWlibsndfile available.

The Problem lies wherein when i try to install SUNWlibsndfile it reports the following error:

pkg: the following package(s) violated constraints:
Package pkg:/SUNWcsl@0.5.11,5.11-0.111 conflicts with constraint in installed pkg:/entire:
Pkg SUNWcsl: Optional min_version: 0.5.11,5.11-0.101 max version: 0.5.11,5.11-0.101 defined by: pkg:/entire

The library is available only for build 111 and not for build 101 which OpenSolaris 2008.11. When i inquired about this at pkg-discuss@opensolaris.org, they told me it was for standardization that this was done.Does this mean that packages cannot be built for Old versions of opensolaris? According to me this is plain nonsense.