Getting the string "i386,x86_64"

[Ryan Schmidt]

On Jul 24, 2013, at 02:57, Mojca Miklavec wrote:

> MacPorts provides a procedure
>    get_canonical_archflags
> which returns "-arch i386 -arch x86_64". Is there any procedure that
> would return "i386,x86_64" instead?

The cmake portgroup does:

                configure.universal_args-append \
                    -DCMAKE_OSX_ARCHITECTURES="[join ${configure.universal_archs} \;]"

So you could get it with a comma using:

                [join ${configure.universal_archs} ,]

Note that's not canonical; that's only applicable when the universal variant is selected.