[cairo] Missing const in cairo API ?

[Robert O'Callahan]

On Sun, 2006-10-01 at 20:31 -0400, Behdad Esfahbod wrote:
> And I'm not sure if adding const keywords in the API is even safe.  The
> compiler uses consts to make certain assumptions.  Can't think of
> anything in particular here though.

Compilers do not generally assume that "const" data is unchanging, since
in most cases the compiler has to assume there are non-const aliases to
data passed in as a const parameter.

Rob