Fix accept4() usage on x86 Linux.
Fix accept4() usage on x86 Linux.

phusion/passenger,jawj/passenger,clemensg/passenger,kewaunited/passenger,kewaunited/passenger,cgvarela/passenger,phusion/passenger,pkmiec/passenger,pkmiec/passenger,jawj/passenger,cgvarela/passenger,clemensg/passenger,cgvarela/passenger,antek-drzewiecki/passenger,kewaunited/passenger,antek-drzewiecki/passenger,antek-drzewiecki/passenger,antek-drzewiecki/passenger,jawj/passenger,antek-drzewiecki/passenger,clemensg/passenger,pkmiec/passenger,jawj/passenger,phusion/passenger,cgvarela/passenger,kewaunited/passenger,phusion/passenger,cgvarela/passenger,clemensg/passenger,pkmiec/passenger,clemensg/passenger,pkmiec/passenger,bf4/passenger,phusion/passenger,clemensg/passenger,bf4/passenger,bf4/passenger,bf4/passenger,jawj/passenger,clemensg/passenger,clemensg/passenger,kewaunited/passenger,kewaunited/passenger,antek-drzewiecki/passenger,kewaunited/passenger,cgvarela/passenger,antek-drzewiecki/passenger,bf4/passenger,cgvarela/passenger,antek-drzewiecki/passenger,phusion/passenger,bf4/passenger,jawj/passenger,bf4/passenger,pkmiec/passenger,phusion/passenger,cgvarela/passenger,pkmiec/passenger,kewaunited/passenger,phusion/passenger,jawj/passenger