James Hilliard <james.hillia...@gmail.com> writes:
> Fixes:
> gcc -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement
> -Werror=vla -Wendif-labels -Wmissing-format-attribute -Wformat-security
> -fno-strict-aliasing -fwrapv -Wno-unused-command-line-argument -O2
> -I../../../../src/include -isysroot
> /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX11.1.sdk
> -c -o fd.o fd.c
> fd.c:3661:10: warning: 'pwritev' is only available on macOS 11.0 or newer
> [-Wunguarded-availability-new]
We already dealt with that by not selecting an SDK newer than the
underlying OS (see 4823621db). I do not believe that your proposal
is more reliable than that approach, and it's surely uglier. Are
we really going to abandon Autoconf's built-in checking method every
time Apple adds an API they should have had ten years ago? If so,
you forgot preadv ...
regards, tom lane
