Invalid use of 'static' in linkage specification

Hello

Although most architectures are compiling my module correctly, I am 
getting some complains for some random linuxes:

http://www.cpantesters.org/cpan/report/294f5cfc-3507-11e1-9d6f-f6dbfa7543f5

http://www.cpantesters.org/cpan/report/c9dafc5a-34fb-11e1-9d6f-f6dbfa7543f5

http://www.cpantesters.org/cpan/report/1afb75b2-34c3-11e1-9bca-f0349aeef8c6

They complain about the use of 'static' on the file generated by 
ExtUtils::ParseXS. But my .xs file doesn't have any 'static' on it, so 
it is referring to some code generated automatically.

Any hint on what it might be?

Thanks,
Cheers
ambs