add inline keyword for compilers that don't have ALWAYS_INLINE. Patch by David Rohr.
add inline keyword for compilers that don't have ALWAYS_INLINE. Patch by David Rohr.

VcDevel/Vc,chr-engwer/Vc,VcDevel/Vc,chr-engwer/Vc,chr-engwer/Vc,VcDevel/Vc,VcDevel/Vc