On Fri, 11 Oct 2024, LIU Hao wrote:
在 2024-10-11 18:30, Martin Storsjö 写道:
I wonder if the right solution here would be to amend the
__MSVCRT_VERSION__ checks with checks for _WIN32_WINNT; if _WIN32_WINNT is
set to a new enough version, declarations are visible for functions that
only exist in new enough versions. And if you want to target older
versions, just don't call those functions (and define _WIN32_WINNT to a
lower version if you want to get the errors for it early enough).
Does it make any sense to dedicate a version number for MSVCRT, for example,
`#define __MSVCRT_VERSION__ 0x07FF` ?
Hm, interesting - as that number is < 0x800, it probably could behave
mostly right in many cases.
There's risk that this can affect code which checks for 0x700 explicitly;
then I would prefer your second option. I am assuming that in practice the
use of MSVCR7[01] is rare.
Yes, there's maybe a bit of risk for that.
We could of course consider going in such a direction as a low-urgency,
later task, but I think there can be some widespread assumption/hardcoding
of 0x700 in places.
I'll post a patch to add the immediate solution I suggested above, as a
more high urgency fix though.
// Martin
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