[issue27398] configure warning for Python 3.5.2 during compilation

[Martin Panter]

Martin Panter added the comment:

FWIW adding a blank fourth argument in configure.ac silences this warning (and speeds up the configure run by 7%, or 4 s). But I don’t want to become an Autoconf nerd and I don’t know if this change could have negative consequences on other platforms (e.g. perhaps AC_INCLUDES_DEFAULT matters?).

Practically, I think you can ignore the warning. The include file is needed to use a new getrandom() syscall on Linux (see Issue 26839), but Python should fall back to older code if it cannot use getrandom().

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keywords: +patch
nosy: +martin.panter
Added file: http://bugs.python.org/file43562/no-preproc-test.patch

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