What is RN_DEBUG and where is it defined

[Ian Lepore]

On Mon, 2013-02-25 at 16:45 -0500, Dheeraj Kandula wrote:
> Hey
>    Can anyone tell me where RN_DEBUG is defined or what is it used for.
> Googling, Grepping and anything I can think of has failed.
> 
> Any help is greatly appreciated.
> 

Checking the "svn annotate" for some of the places the symbol is used,
it looks like it came from an original BSD 4.4 source import many years
ago.  There may have been some mechanism (such as a kernel option) for
setting it in that build environment which didn't get propagated to the
freebsd tree.

-- Ian