Within a couple of days enough smoke tests should trickle in that I'll have a better idea if this fixes the issue.

Well, it should fix it , it does in my testing.

cpanp -u Inline::CPP Inline Math::Prime::FastSieve    --force 
cpanp -i  DAVIDO/Math-Prime-FastSieve-0.04.tar.gz
[download]

You can test before uploading for this issue with

#!/usr/bin/perl --
use strict; use warnings;
use URI::file;
my $file = q[Math-Prime-FastSieve-0.04.tar.gz];
$file = URI::file->new( $file )->abs(URI::file->cwd);
system qw[ cpanp -u Inline::CPP Inline Math::Prime::FastSieve    --for
+ce ];
system qw[ cpanp -i  ], $file , qw[ --skiptest  --no-allow_build_inter
+activity ];
[download]