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

From: Chicken Trac
Subject: [Chicken-janitors] #771: llvm-gcc hang on OS X 10.7
Date: Tue, 03 Jan 2012 18:51:04 -0000

#771: llvm-gcc hang on OS X 10.7
 Reporter:  zbigniew  |       Owner:       
     Type:  defect    |      Status:  new  
 Priority:  minor     |   Milestone:       
Component:  compiler  |     Version:  4.7.x
 Keywords:            |  
 ddp may have found the root cause of hanging of chicken binaries compiled
 with llvm-gcc:

 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: <>
Chicken Scheme <>
Chicken Scheme is a compiler for the Scheme programming language.

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