Re: Issues cross-compiling libpq 14.x to MacOS armv8

Daniel Gustafsson <daniel(at)yesql(dot)se> writes:
>> On 30 Nov 2021, at 20:59, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
>> AFAICS this is the only test in our configure script that is a hard
>> fail when cross-compiling, and I don't see a reason for it to be that.
>> We could just assume that /dev/urandom will be available --- that's no
>> worse than a lot of the other optimistic assumptions that configure
>> makes in that mode.

> Agreed, I don't see a problem with that. I'm not terribly familiar with
> supporting cross compilation in autoconf, would a reasonable approach be to
> just remove the check altogether like the below sketch?

It seems like a useful test when *not* cross compiling, which is most
of the time. I'd just wrap that bit in

if test "$cross_compiling" = no; then
...
fi

(I'm a bit surprised that the AC_CHECK_FILE macro doesn't provide
an action-if-cross-compiling option, but it apparently doesn't.)

regards, tom lane