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Subject: [Bug 54840] atomics/unix/ppc.c won't compile on OS X
Date: Sat, 13 Apr 2013 13:36:31 +0000
Message-ID: <bug-54840-43213-ML9fXJw9sd@https.issues.apache.org/bugzilla/>
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https://issues.apache.org/bugzilla/show_bug.cgi?id=3D54840

--- Comment #2 from Mattias Engdeg=C3=A5rd <mattiase@acm.org> ---
For the record, %=3D in inline asm generates a unique number. From the gcc
sources:

        /* %=3D outputs a number which is unique to each insn in the entire
           compilation.  This is useful for making local labels that are
           referred to more than once in a given insn.  */

(I couldn't find it actually documented anywhere else.) The problem in this
case stems from the fact that the system compiler in OS X 10.5, gcc 4.0.1, =
does
not have that feature so a literal "%=3D" is inserted. However, there shoul=
d be
no need for that since local labels work nicely.

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