[bouqueau] cleanup for optimization and cross-compilation detection (sdl+wx)
[bouqueau] cleanup for optimization and cross-compilation detection (sdl+wx)

git-svn-id: ab66a9de07fa9d47c5829c82992f5279466c775f@3917 63c20433-aa62-49bd-875c-5a186b69a8fb

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