On Wed, 30 Sep 2015, Thorsten Schöning wrote:
Hm. I don't see how this happens in the code. Which code tries to use that
function?
The unresolved external is mentioned for "asyn-thread", which seems to
use Curl_ipv4_resolve_r depending on HAVE_GETADDRINFO NOT defined,
Ok, that explains it. That's just an unexpected combination of variables:
IPv6 support implies that you either have getaddrinfo() or you build with
c-ares for name resolving. If you have neither of those, it can't do IPv6 and
then it needs to use the IPv4 resolver functions.
which is the case for me. config-win32.h is not recognizing my compiler
again, if I manually define e.g. _WIN32_WINNT = 0x0501 compiling and linking
works with defining either ENABLE_IPV6 or USE_IPV6=1.
So, what's the best thing to do now?
_WIN32_WINNT is not defined automatically as well, should I define it
manually?
Should it be included in config-win32.h for my compiler like it is with
_MSC_VER?
Possibly. I'm not really that much into building with various compilers on
Windows so I'm not entirely sure. My reading of the microsoft docs seems to
imply yhat _WIN32_WINNT is meant to be set manually so it should be safe.
Where does _WIN32_WINNT_VISTA come from? I couldn't find it, would I need to
define it as well?
AFAIK, that's defined in some windows header file:
https://msdn.microsoft.com/en-us/library/windows/desktop/aa383745(v=vs.85).aspx
Or should the check for HAVE_GETADDRINFO and its stuff in
config-win32.h should be enhanced by recognizing my compiler, like it
recognizes _MSC_VER?
Yes. You should set the defines based on what compiler you use and what
functions you have with it.
--
/ daniel.haxx.se
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