[Pyrex] conditional types from C headers

[Phil Frost]

In C it's rather common to have typedefs within #ifdef statements, for
example, size_t, uint32_t, etc. Is there any way to tell pyrex, "there
is a type called 'size_t', so just use it and let the C compiler do the
rest"? From what I can tell, If i do "ctypedef fu bar", then pyrex
translates all bars to fus, so the compiler and preprocessor can't do
their "magic". Any way to solve this?