[os x] Po directories gettext check fails

[Alexander Neundorf]

On Thursday 01 January 2009, you wrote:
> A Dijous 01 Gener 2009, Alexander Neundorf va escriure:
> > On Thursday 01 January 2009, you wrote:
...
> > So, do a find_path() for libintl.h, then push the *_REQUIRED_* variables
> > (there are macros for that), then add the path from find_path() to the
> > required includes, then do the tests, then restore the *_REQUIRED_*
> > variables using pop.
> > Maybe the check_include_files() can also simply be replaced by a
> > find_path().
>
> That's thinking out loud or are you expecting me to do it? Not that i do
> not want to do the work but my cmake foo is reduced to copy&paste.

Ok, done.

Please check that it works now on OSX.

Alex