Fixed compilation with libpng>=1.5
Fixed compilation with libpng>=1.5


git-svn-id: ab66a9de07fa9d47c5829c82992f5279466c775f@2675 63c20433-aa62-49bd-875c-5a186b69a8fb

ARSekkat/gpac,epam/gpac,RodolpheFouquet/gpac,ARSekkat/gpac,epam/gpac,epam/gpac,DmitrySigaev/gpac,ARSekkat/gpac,canatella/gpac,emmanouil/gpac,porcelijn/gpac,epam/gpac,canatella/gpac,rbouqueau/gpac,RodolpheFouquet/gpac,canatella/gpac,gpac/gpac,gpac/gpac,rbouqueau/gpac_brew_travis,nguyen-viet-thanh-trung/gpac,rbouqueau/gpac,vladimir-kazakov/gpac,vladimir-kazakov/gpac,nguyen-viet-thanh-trung/gpac,ARSekkat/gpac,rbouqueau/gpac_brew_travis,DmitrySigaev/gpac,rauf/gpac,rauf/gpac,rbouqueau/gpac_brew_travis,RodolpheFouquet/gpac,nguyen-viet-thanh-trung/gpac,drakeguan/gpac,gpac/gpac,emmanouil/gpac,nguyen-viet-thanh-trung/gpac,nguyen-viet-thanh-trung/gpac,Bevara/Access-open,rbouqueau/gpac,aymanelyaagoubi/gpac,drakeguan/gpac,drakeguan/gpac,porcelijn/gpac,psteinb/gpac,aymanelyaagoubi/gpac,canatella/gpac,emmanouil/gpac,RodolpheFouquet/gpac,rauf/gpac,gpac/gpac,Bevara/Access-open,canatella/gpac,emmanouil/gpac,gpac/gpac,psteinb/gpac,rbouqueau/gpac_brew_travis,psteinb/gpac,porcelijn/gpac,rbouqueau/gpac,drakeguan/gpac,canatella/gpac,rbouqueau/gpac,epam/gpac,psteinb/gpac,porcelijn/gpac,epam/gpac,rbouqueau/gpac,rauf/gpac,emmanouil/gpac,aymanelyaagoubi/gpac,aymanelyaagoubi/gpac,nguyen-viet-thanh-trung/gpac,ARSekkat/gpac,rbouqueau/gpac,gpac/gpac,rbouqueau/gpac_brew_travis,Bevara/Access-open,drakeguan/gpac,emmanouil/gpac,vladimir-kazakov/gpac,DmitrySigaev/gpac,Bevara/Access-open,Bevara/Access-open,DmitrySigaev/gpac,ARSekkat/gpac,canatella/gpac,gpac/gpac,psteinb/gpac,vladimir-kazakov/gpac,aymanelyaagoubi/gpac,rauf/gpac,aymanelyaagoubi/gpac,rbouqueau/gpac_brew_travis,RodolpheFouquet/gpac,vladimir-kazakov/gpac,RodolpheFouquet/gpac,porcelijn/gpac,porcelijn/gpac,Bevara/Access-open,rauf/gpac,gpac/gpac,DmitrySigaev/gpac,vladimir-kazakov/gpac,psteinb/gpac,rbouqueau/gpac,drakeguan/gpac,DmitrySigaev/gpac