[Chicken-janitors] #771: llvm-gcc hang on OS X 10.7

[Chicken Trac]

#771: llvm-gcc hang on OS X 10.7
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 Reporter:  zbigniew  |       Owner:       
     Type:  defect    |      Status:  new  
 Priority:  minor     |   Milestone:       
Component:  compiler  |     Version:  4.7.x
 Keywords:            |  
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 ddp may have found the root cause of hanging of chicken binaries compiled
 with llvm-gcc: http://blog.phusion.nl/2011/12/30/xcode-4-ships-a-buggy-
 compiler/

 The current workaround is to force gcc-4.2 during compilation.  However,
 Xcode 4.2 (shipped in November) removes plain gcc-4.2.  Since this breaks
 Ruby's garbage collector, I assume either Apple will provide a fix or Ruby
 will work around it (which fix we should adopt).

 The usual solution for non-alloca platforms is to use a stub function to
 take the address of a local variable (requiring compiler support for
 noinline).  If the workaround becomes necessary, I would want to target it
 as narrowly as possible, as it is ugly.  The remaining question is how
 narrowly it can be targeted.

-- 
Ticket URL: <https://bugs.call-cc.org/ticket/771>
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