[issue28542] document cross compilation

[Xavier de Gaye]

Xavier de Gaye added the comment:

> The ACTION-IF-CROSS-COMPILING parameter of the AC_RUN_IFELSE that checks for getaddrinfo is $ac_cv_buggy_getaddrinfo="no -- configured with --(en|dis)able-ipv6".

Hum, I should have written:
The ACTION-IF-CROSS-COMPILING parameter of the AC_RUN_IFELSE that checks for getaddrinfo is $ac_cv_buggy_getaddrinfo="no -- configured with --(en|dis)able-ipv6" when configure is run with --disable-ipv6 or --enable-ipv6.

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue28542>
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