tcl 101

[Marin Saric]

I think you need to escape the "$" character to "\$" inside the
command or use the curly braces '{' and '}' instead of double quotes.
When using quotes, tcl catches the $ sign and thinks that what follows
is a variable. This is a language feature known as "interpolation".

It then attempts to find the variable called  "(exec
${topdir}/config.guess)" . Such a variable doesn't exist, hence the
reported error.

This page sums up Tcl quoting rules quite well:
http://wiki.tcl.tk/1726

  Marin

On Thu, Dec 22, 2011 at 2:22 AM, Mark Brethen <mark.brethen at gmail.com> wrote:
> This line in my portfile:
>
>    set builddir    [system -W ${topdir}/scripts "./findhost.sh $(exec ${topdir}/config.guess)"]
>
> is giving an error
>
> :error:activate Target org.macports.activate returned: can't read "(exec /opt/local/libexec/reduce-algebra/config.guess)": no such variable
>
> I'm trying to pass the result of config.guess to another shell script findhost. Could someone point out the error?
>
> Mark
>
>
>
>
> _______________________________________________
> macports-dev mailing list
> macports-dev at lists.macosforge.org
> http://lists.macosforge.org/mailman/listinfo.cgi/macports-dev