FTBFS with clang instead of gcc

[Laurent Bigonville]

Hi,

Apparently audit is FTBFS with clang due to the embedded version of
libev with the following error (see: [0]):

../../../../src/libev/ev.c:970:42: error: '_Noreturn' keyword must
precede function declarator

The bug[0] provides a patch. I don't think this has been fixed
upstream yet. There was however a small thread [1] about this on
upstream ML.

Not sure what's the policy regarding patching embedded copy of libev.

Cheers,

Laurent Bigonville

[0] https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=787066
[1] http://lists.schmorp.de/pipermail/libev/2015q1/002480.html