__errno_location() like functionality in Cygwin

[Dmitry Timoshkov]

Hello.

I'm new to this list. I'd like to know, is it possible to define
my own __errno() function, which will provide functionality like
__errno_location() in linux?

This simple program works in linux, but doesn't under Cygwin:

static int myerrno = 0;
static char buf[256];

int *__errno_location(void)
{
    return &myerrno;
}

int *__errno(void)
{
    return &myerrno;
}

int main(void)
{
    int ret;

    /* provoke an error */
    ret = read(-1, buf, 255);
    printf("ret = %d, myerrno = %d\n", ret, myerrno);

    return 0;
}

Any suggestions?

Thanks in advance.
--
Dmitry.



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