adium-1.4 3614:062a27e5858b: Added MAZeroingWeakRef

[Thijs Alkemade]

On 21 aug. 2011, at 23:47, commits at adium.im wrote:

> details:	http://hg.adium.im/adium-1.4/rev/062a27e5858b
> revision:	3614:062a27e5858b
> branch:		(none)
> author:		Evan Schoenberg
> date:		Sun Aug 21 16:17:51 2011 -0500
> 
> Added MAZeroingWeakRef
> (transplanted from 13d1f4765a893ca51ac912172b365f4ddae937d2)
> Subject: adium-1.4 3615:dd4b532eb0d5: Silenced some more nib warnings in xcode 4.2

I didn't check what this is used for or what it is, but it breaks our build:

---

Undefined symbols:
  "__Block_object_dispose", referenced from:
      ___destroy_helper_block_4 in MAZeroingWeakRef.o
      ___destroy_helper_block_4 in MAZeroingWeakRef.o
      ___Block_byref_id_object_dispose3.94842 in MAZeroingWeakRef.o
      ___destroy_helper_block_3 in MAZeroingWeakRef.o
      ___destroy_helper_block_2 in MAZeroingWeakRef.o
      ___destroy_helper_block_2 in MAZeroingWeakRef.o
      ___destroy_helper_block_1 in MAZeroingWeakRef.o
      -[MAZeroingWeakRef target] in MAZeroingWeakRef.o
  "__Block_object_assign", referenced from:
      ___copy_helper_block_4 in MAZeroingWeakRef.o
      ___copy_helper_block_4 in MAZeroingWeakRef.o
      ___Block_byref_id_object_copy3.94838 in MAZeroingWeakRef.o
      ___copy_helper_block_3 in MAZeroingWeakRef.o
      ___copy_helper_block_2 in MAZeroingWeakRef.o
      ___copy_helper_block_2 in MAZeroingWeakRef.o
      ___copy_helper_block_1 in MAZeroingWeakRef.o
  "__NSConcreteStackBlock", referenced from:
      __NSConcreteStackBlock$non_lazy_ptr in MAZeroingWeakRef.o
     (maybe you meant: __NSConcreteStackBlock$non_lazy_ptr)
ld: symbol(s) not found
collect2: ld returned 1 exit status

---

(http://buildbot.adium.im/builders/adium-1.4/builds/552/steps/compile/logs/stdio)

It looks like this is because blocks can't be used on 10.5.

Thijs
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