On Aug 9, 2012, at 09:30, Federico Calboli wrote:
> On 9 Aug 2012, at 15:25, Brandon Allbery wrote:
>
>> On Thu, Aug 9, 2012 at 10:18 AM, Federico Calboli <[email protected]>
>> wrote:
>> Is it there a way of making the option +no_x11 (where available, obviously),
>> the default? I hate when macports tries to install X11 -- I can do
>>
>> Yes and no. "No" because +no_x11 is deprecated and being removed from the
>> ports that still have it;
>
> Ok, so what happens when ghostscript, ImageMagick, libsdl etc switch option?
> I ask because:
>
> ~$ port installed|grep x11
> ghostscript @9.05_2+no_x11 (active)
> ImageMagick @6.7.8-3_0+no_x11+q16 (active)
> libsdl @1.2.15_0+no_x11 (active)
>
> will the +no_x11 be automagically transformed in -x11?
Yes, when port authors make this switch, they should be doing so in a way that
provides a seamless upgrade. Part of the solution is what Bradley said:
On Aug 9, 2012, at 13:48, Bradley Giesbrecht wrote:
> Check out libsdl:
> ...
> port cat libsdl | grep -A4 "variant_isset no_x11"
> if {[variant_isset no_x11]} {
> default_variants -x11
> } else {
> default_variants +x11
> }
> ...
That ensures that the x11 variant is marked as on or off, depending on whether
the user had selected the old no_x11 variant. In addition, a placeholder no_x11
variant needs to be retained in the port, marked as conflicting with the new
x11 variant, to facilitate upgrades; we recommend this remain for a period of
no less than one year.
variant no_x11 conflicts x11 description {Legacy compatibility variant} {}
variant x11 conflicts no_x11 {
# whatever you need to do to enable x11 functionality
}
if {[variant_isset no_x11]} {
default_variants -x11
} else {
default_variants +x11
}
After the year is up and the old no_x11 placeholder variant can be removed,
this will simplify down to:
variant x11 {
# whatever you need to do to enable x11 functionality
}
default_variants +x11
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