Updating tk failed on Snow Leopard

[Richard L. Hamilton]

> On Aug 23, 2016, at 10:38, Ryan Schmidt <ryandesign at macports.org> wrote:
> 
> On Aug 23, 2016, at 07:02, Mojca Miklavec <mojca at macports.org> wrote:
>> 
>> Hi,
>> 
>>> On 23 August 2016 at 02:00, Ken Cunningham wrote:
>>>> On 2016-08-22, at 3:48 PM, Richard L. Hamilton wrote:
>>>> Updating tk failed on Snow Leopard, trying to update to the current tk at 8.6.6 (probably +quartz+universal, given that's what the current @8.6.5_0 is)
>>> Hi Richard,
>>> 
>>> I have tk 8.6.6 running on snow leopard, but with +x11 (and not universal, but x86_64)
>>> 
>>> $ port -v installed tk
>>> The following ports are currently installed:
>>> tk @8.6.6_0+x11 (active) platform='darwin 10' archs='x86_64'
>>> 
>>> for what that's worth. I installed it with clang-3.7, and my first thought is that your compiler might be too old. You might try installing clang-3.7 (and ld64/cctools/llvm-3.7 that go along with it) and see where that takes you....
>> 
>> The "official" binaries are indeed available for 10.6 and they were
>> compiled with the default compiler:
>>   http://packages.macports.org/tk/
>> 
>> I can confirm that tk +quartz compiles fine for me on 10.7, but not on
>> 10.6 (not even with clang 3.4, I didn't test with 3.7).
>> 
>> I don't find a ticket in the tracker, so feel free to open one. The
>> closest one I found was
>>   https://trac.macports.org/ticket/22994
>> but that one is ancient and most likely unrelated.
> 
> The official binaries are built on a system with Xcode 3.2.6 and therefore use gcc-4.2, which evidently works. 
> 
> The user is using Xcode 4.2, and the log shows llvm-gcc-4.2 is being used, which evidently doesn't work. We should blacklist that compiler in the port. 
> 

While the problems may not be identical depending on the compiler, that alone isn't the answer.  I installed Xcode 3.2.6 (and made sure that xcode-select -print-path showed that version), and it still failed.  I cleaned and added -universal...and it still failed.  I did that again adding -quartz...and it found the pre-built binaries.

I see the pre-built hasn't used +quartz for a number of versions, although I have evidently gotten it to work before:
sh-3.2# port installed tk
The following ports are currently installed:
  tk @8.6.5_0+quartz+universal
  tk @8.6.6_0+x11 (active)

So the problem may be specific to trying to build tk at 8.6.6_0+quartz.