Ronald Oussoren wrote:
> 
> Ronald Oussoren <ronaldoussoren@mac.com> added the comment:
> 
> That (/usr/local/src) explains why I haven't been able to reproduce the problem, that worried me a little.
> 
> W.r.t. to the SDK:
> 
> 1) You don't have to use an SDK: use 
> 
>      configure --enable-universalsdk=/  MACOSX_DEPLOYMENT_TARGET=10.5
> 
>   (or whatever target you wish to support)

Well, we want to build universal binaries, so we do need the SDK.

> 2) The SDK should only affect system files, that is anything in /System
>    and /usr (except for /usr/local). /Library is not part of the SDK
>    and is not affected by SDK settings.

Sorry, I should have written /System/Library/. You find Tcl
in /System/Library, but not in
/Developer/SDKs/MacOSX10.4u.sdk/System/Library/

Anyway, this doesn't appear to matter, since setup.py picks up the
files from a different dir: /System/Library/Frameworks/Tk.framework
and that is included in the SDK.

As I said: The fix makes the build work, so it's good enough for
now. In the future all this may will have to be revisited.