Re: [HEAD] Teach testsuite/lib/objc.exp about Darwin frameworks

[David Ayers <d dot ayers at inode dot at>]

Ziemowit Laski wrote:
> I will commit this as obvious.  On Mac OS X, some ObjC-ish symbols
> (most notably NSConstantString stuff) live in the Foundation framework
> rather than libobjc.
>
> As a result, the objc/execute/string[1-4].m test cases will now pass
> on Geoff's native tester.  I've also tried this on i686-pc-linux-gnu to 
> make sure it
> does no harm.

/me wonders if this a foreshadowing of a WWDC announcement that 
Foundation will be released under the ASPL 2.0 for the use of all Darwin 
systems ;-)

No seriously...  Darwin isn't Mac OS X and therefor not all Darwin 
targets will have Foundation to link against.  When these tests are run 
for the GNU runtime on Darwin these should start failing there.  (I'm 
sure you are aware of the efforts to reenable the GNU runtime for Darwin 
targets by default in a fashion that will not conflict with the 
preinstalled Apple runtime.)

It seems that the Apple runtime requires the availability of a class 
named NSConstantString when string literals are used.  (The GNU runtime 
uses -fconstant-string-class or falls back to NXConstantString which is 
part of the runtimes libobjc.)

Could you please make the linking against Foundation conditional for the 
Apple runtime?

Cheers,
David