Fixed xcode warning
Fixed xcode warning

porcelijn/gpac,emmanouil/gpac,RodolpheFouquet/gpac,nguyen-viet-thanh-trung/gpac,RodolpheFouquet/gpac,gpac/gpac,emmanouil/gpac,porcelijn/gpac,rbouqueau/gpac,rauf/gpac,gpac/gpac,rbouqueau/gpac_brew_travis,nguyen-viet-thanh-trung/gpac,nguyen-viet-thanh-trung/gpac,RodolpheFouquet/gpac,rbouqueau/gpac,rauf/gpac,gpac/gpac,rbouqueau/gpac_brew_travis,aymanelyaagoubi/gpac,rbouqueau/gpac,RodolpheFouquet/gpac,rbouqueau/gpac,ARSekkat/gpac,rbouqueau/gpac_brew_travis,nguyen-viet-thanh-trung/gpac,rbouqueau/gpac_brew_travis,emmanouil/gpac,porcelijn/gpac,nguyen-viet-thanh-trung/gpac,aymanelyaagoubi/gpac,emmanouil/gpac,emmanouil/gpac,rbouqueau/gpac,rbouqueau/gpac,ARSekkat/gpac,rbouqueau/gpac_brew_travis,ARSekkat/gpac,porcelijn/gpac,gpac/gpac,rauf/gpac,ARSekkat/gpac,gpac/gpac,aymanelyaagoubi/gpac,rauf/gpac,aymanelyaagoubi/gpac,gpac/gpac,nguyen-viet-thanh-trung/gpac,ARSekkat/gpac,emmanouil/gpac,RodolpheFouquet/gpac,gpac/gpac,rbouqueau/gpac_brew_travis,porcelijn/gpac,ARSekkat/gpac,aymanelyaagoubi/gpac,aymanelyaagoubi/gpac,rauf/gpac,RodolpheFouquet/gpac,gpac/gpac,rbouqueau/gpac,rbouqueau/gpac,porcelijn/gpac,rauf/gpac