Hi,

On Tue, May 7, 2013 at 12:26 PM, Tassilo Horn <tsdh@gnu.org> wrote:

> Guido Van Hoecke <guivho@gmail.com> writes:
>
> Hu Giudo,
>
> > When executing the awk script written by Eric S. Fraga at
> > http://orgmode.org/worg/org-tutorials/org-google-sync.html I get
> > following error:
> >
> > /usr/bin/awk: calling undefined function gensub
> >  source line number 82
> >
> > This is on an iMac with 'awk version 20070501'.
> >
> > Is this outdated or so?
>
> gensub is a GNU awk extension.  So either you are running a different
> flavor of awk, or you are running it in compatibility mode (Option -c or
> --traditional).  Given the version string, I guess it's another flavor.
>

The easiest way to get GNU awk on mac is probably to install
homebrew<http://mxcl.github.io/homebrew/>(or
macports <http://www.macports.org/>) first. In case of homebrew you can run:

ruby -e "$(curl -fsSL https://raw.github.com/mxcl/homebrew/go)"
brew update
brew install gawk

regards,
Henning