In article <bd2a3e7e-aaad-42b9-a310-0b981498f...@mac.com>, Ronald Oussoren <ronaldousso...@mac.com> wrote:
> On 22 Jul, 2011, at 6:10, Aahz wrote: > > > On Thu, Jul 21, 2011, Ned Deily wrote: > >> > >> Although it's not practical to build packages with C extension modules > >> on 10.7 for the traditional 32-bit-only python.org Pythons (as explained > >> above), it is possible to build such packages with the same Python > >> installed on a 10.6, 10.5, or even 10.4 system, create a Distutils bdist > >> or setuptools/Distribute bdist-egg and then install the binary > >> distribution on the 10.7 system. I would avoid going down that path if > >> possible, unless it is needed as a temporary transition phase. > > > > Why? Isn't that the only way to get a multi-platform build? > > It is the only way to get a build that works with PPC systems, with some care > you can binaries on 10.7 that work just fine earlier releases. > > To create binaries that work on 10.5 (or even 10.4) you'll need a new > python install though, the Intel-only installer on python.org only supports > 10.6 or later due to the Tkinter dependency. > > The hardest part w.r.t. binaries that run on earlier versions is that C > software > that uses a configure script might detect features on your build system > that aren't available on earlier releases. > > Ronald Rob Manegan suggested another approach that I am considering: install the older SDKs on XCode 4.1. I found a link that provides clear instructions: <http://hints.macworld.com/article.php?story=20110318050811544> Personally I'm happy to ditch PPC and MacOS X 10.4, but I'm not in a position to abandon MacOS X 10.5 users yet. However, from what you said it sounds as if the only way to build extensions with the 32-bit python.org python is to install the 10.4/ppc support. So I think my options (since I need to distribute an app that can run on 10.5 and later) are: - Install 10.4 support in XCode 4.1, as above. The main annoyance with this is the need to stay at gcc 4.0. - Build extensions on 10.6 or earlier. This is not a big deal because keep an old laptop around for this purpose due to unresolved backward compatibility issues building matplotlib and PIL binaries on 10.6. - Switch to ActiveState Python (since they offer a 10.5-and-later python and python.org sadly does not) or build my own. This involves a bit of licensing headache as I have to renew a free license every year. It sounds like any of these will work, but I'm looking forward to being able to ditch 10.5 support. -- Russell _______________________________________________ Pythonmac-SIG maillist - Pythonmac-SIG@python.org http://mail.python.org/mailman/listinfo/pythonmac-sig unsubscribe: http://mail.python.org/mailman/options/Pythonmac-SIG
