API_PROXY: use getaddrinfo() if available

git-svn-id: https://svn.osgeo.org/gdal/trunk/gdal@25621 f0d54148-0727-0410-94bb-9a71ac55c965
Fix Windows build

git-svn-id: https://svn.osgeo.org/gdal/trunk/gdal@25622 f0d54148-0727-0410-94bb-9a71ac55c965
Fix mingw build

git-svn-id: https://svn.osgeo.org/gdal/trunk/gdal@25623 f0d54148-0727-0410-94bb-9a71ac55c965