Hi Patrick,

setup-os400.h defines both Curl_getaddrinfo_a() and a
Curl_getnameinfo_a() as replacement functions for getaddrinfo() and
getnameinfo(). So, shouldn't HAVE_GETADDRINFO and HAVE_GETNAMEINFO
also be defined right there? Otherwise how are those replacement
functions expected to be used?

Please, verify if defining HAVE_GETADDRINFO and HAVE_GETNAMEINFO in
setup-os400.h solves the issue.

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-=[Yang]=-