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  1. Bug #1157603
  2. Comment #20

Comment 20 for bug 1157603

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In , Weimingz (weimingz) wrote :

For x86, it looks "__GCC_HAVE_SYNC_COMPARE_AND_SWAP_8" only apply to i586 or above. So we can't define the 4 macros for all targets.
I don't know if it is safe to define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_{1,2,4} for all targets.

And I can't find a way to compute the macros for each target either