Infinite recursion warning

[Carlo De Falco]

Hi,

since this changeset:

  http://hg.savannah.gnu.org/hgweb/octave/rev/39186eac5a05

I see the following warning (repeated many times) when compiling with clang++ :

../octave/libinterp/corefcn/pr-output.h:202:1: warning: all paths through this 
function will call itself [-Winfinite-recursion]
{
^
1 warning generated.

It is just a warning but it looks a bit scary so I thought it might be worth 
reprting.

c.