[issue4753] Faster opcode dispatch on gcc

[Mark Dickinson]

Mark Dickinson <dickinsm at gmail.com> added the comment:

The x86 gentoo buildbot is failing to compile, with error:

/Python/makeopcodetargets.py ./Python/opcode_targets.h
  File "./Python/makeopcodetargets.py", line 28
    f.write(",\n".join("\t&&%s" % s for s in targets))
                                      ^
SyntaxError: invalid syntax
make: *** [Python/opcode_targets.h] Error 1

I suspect that it's because the system Python on this buildbot is Python 
2.3, which doesn't understand generator expressions.  Are there any 
objections to me adding a couple of square brackets to this line to turn 
the argument of join into a list comprehension?

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nosy: +marketdickinson

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<http://bugs.python.org/issue4753>
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