Fix compilation on Apache < 2.2.14. Fixes issue #526.
Fix compilation on Apache < 2.2.14. Fixes issue #526.

phusion/passenger,kewaunited/passenger,pkmiec/passenger,jawj/passenger,gravitystorm/passenger,antek-drzewiecki/passenger,jawj/passenger,clemensg/passenger,erikogan/passenger,clemensg/passenger,bf4/passenger,erikogan/passenger,bf4/passenger,antek-drzewiecki/passenger,kewaunited/passenger,jawj/passenger,fabiokung/passenger-debian,openSUSE/passenger,antek-drzewiecki/passenger,fabiokung/passenger-debian,kewaunited/passenger,antek-drzewiecki/passenger,fabiokung/passenger-debian,pkmiec/passenger,gravitystorm/passenger,openSUSE/passenger,kewaunited/passenger,pkmiec/passenger,cgvarela/passenger,erikogan/passenger,fabiokung/passenger-debian,openSUSE/passenger,clemensg/passenger,bf4/passenger,antek-drzewiecki/passenger,gravitystorm/passenger,cgvarela/passenger,kewaunited/passenger,phusion/passenger,clemensg/passenger,phusion/passenger,openSUSE/passenger,phusion/passenger,clemensg/passenger,kewaunited/passenger,kewaunited/passenger,phusion/passenger,cgvarela/passenger,pkmiec/passenger,bf4/passenger,cgvarela/passenger,erikogan/passenger,gravitystorm/passenger,cgvarela/passenger,clemensg/passenger,openSUSE/passenger,jawj/passenger,jawj/passenger,antek-drzewiecki/passenger,erikogan/passenger,kewaunited/passenger,cgvarela/passenger,gravitystorm/passenger,phusion/passenger,erikogan/passenger,clemensg/passenger,antek-drzewiecki/passenger,jawj/passenger,fabiokung/passenger-debian,cgvarela/passenger,pkmiec/passenger,jawj/passenger,phusion/passenger,openSUSE/passenger,gravitystorm/passenger,bf4/passenger,cgvarela/passenger,bf4/passenger,pkmiec/passenger,fabiokung/passenger-debian,phusion/passenger,bf4/passenger,antek-drzewiecki/passenger,pkmiec/passenger,clemensg/passenger