Vall is not building

Vall seems to not be building, with an ospray related failure.

Is it related to the optix integration ?

Also it is still assigned to Shawn.

@utkarsh.ayachit @Dave_DeMarle

@Dave_DeMarle : I just saw your message :

Vall’s configure failure is unrelated (still my fault - ospray renaming […])

vall is fixed now because of via