Bug on ubuntu

[chris]

Trying to install Parrot and Rakudo on Ubuntu, I get two sets of error 
massages saying :

attention : "__cold__" attribute directive ignored

and

attention : "__hot__" attribute directive ignored

concerning several *.h files

It seems anyway that parrot does work, but I would like to understand 
why I have these messages on ubuntu and I dont on darwin.

And, how it should possible to correct it.

Thanks a lot.

-- 
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           (o o)
     +--ooO-( )-Ooo------------------------------------------+
     |              Christian Aperghis-Tramoni               |
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     | Case Postale 901          Tel : (33) 04 91 82 92 49   |
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  ( (+-------------------------------------------------------+) )
 ((\ \)  / )                                           / ) (/ //)
 (\\\ \_/ /                                            \ \_/ ///)
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print join('',map({$i=1-$i;$a=$i?10*$_."\b\b":pack"c",$a+$_+0x16}split
(//,"5110789279758710838810587992861093898779948387799310")),"...\n");
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