again: sizeof(wchar_t)

[Florian Weimer]

llewelly@xmission.com writes:

> The normal solution is to make configure compile run a program which
>     outputs sizeof(wchar_t), and then substitutes that value into your
>     header files. I didn't suggest this before because somehow I had
>     the impression you were using a cross-compiler (which means the
>     configure-time program which determines sizeof(wchar_t) must be
>     downloaded to your target and its output somehow uploaded back,
>     something which is not always feasible.)

autoconf has macros which can determine compile-time constants even
when cross-compiling.

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