shader example doesn't work on mac

[Canadadry]

I've tested the shader example on two mac (macbook mid2007(intel GMA 950) and imac end2009(Ati Radeon HD 4760)). On both some shader can't be builded :

Failed to compile shader:
ERROR: 0:9: '*' :  wrong operand types no operation '*' exists that takes a left-hand operand of type '4-component vector of float' and a right operand of type 'const int' (or there is no acceptable conversion)
ERROR: 0:10: '*' :  wrong operand types no operation '*' exists that takes a left-hand operand of type '4-component vector of float' and a right operand of type 'const int' (or there is no acceptable conversion)
ERROR: 0:11: '*' :  wrong operand types no operation '*' exists that takes a left-hand operand of type '4-component vector of float' and a right operand of type 'const int' (or there is no acceptable conversion)
ERROR: 0:12: '*' :  wrong operand types no operation '*' exists that takes a left-hand operand of type '4-component vector of float' and a right operand of type 'const int' (or there is no acceptable conversion)
ERROR: 0:13: '*' :  wrong operand types no operation '*' exists that takes a left-hand operand of type '4-component vector of float' and a right operand of type 'const int' (or