Compilation fix for non-imageio builds
Compilation fix for non-imageio builds

umar456/arrayfire,munnybearz/arrayfire,arrayfire/arrayfire,ghisvail/arrayfire,bkloppenborg/arrayfire,9prady9/arrayfire,munnybearz/arrayfire,umar456/arrayfire,umar456/arrayfire,pentschev/arrayfire,pentschev/arrayfire,pentschev/arrayfire,bkloppenborg/arrayfire,bkloppenborg/arrayfire,munnybearz/arrayfire,marbre/arrayfire,9prady9/arrayfire,merlin-ext/arrayfire,arrayfire/arrayfire,victorv/arrayfire,shehzan10/arrayfire,marbre/arrayfire,bkloppenborg/arrayfire,pentschev/arrayfire,9prady9/arrayfire,hshindo/arrayfire,shehzan10/arrayfire,shehzan10/arrayfire,9prady9/arrayfire,marbre/arrayfire,merlin-ext/arrayfire,shehzan10/arrayfire,victorv/arrayfire,umar456/arrayfire,hshindo/arrayfire,merlin-ext/arrayfire,victorv/arrayfire,ghisvail/arrayfire,hshindo/arrayfire,arrayfire/arrayfire,ghisvail/arrayfire,merlin-ext/arrayfire,ghisvail/arrayfire,hshindo/arrayfire,marbre/arrayfire,victorv/arrayfire,arrayfire/arrayfire