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AC_DEFUN([AC_TNY_IPV6_CHECK], |
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[ |
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AC_CACHE_CHECK([if system supports getaddrinfo and getnameinfo], have_addrinfo, |
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[ |
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AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ |
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#include "confdefs.h" |
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#include <sys/types.h> |
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#include <sys/socket.h> |
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#include <netinet/in.h> |
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#include <netdb.h> |
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#include <stddef.h> |
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|
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]], [[ |
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struct addrinfo hints, *res; |
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struct sockaddr_in6 sin6; |
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int af = AF_INET6; |
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char host[NI_MAXHOST]; |
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char serv[NI_MAXSERV]; |
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getaddrinfo ("www.ximian.com", NULL, &hints, &res); |
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freeaddrinfo (res); |
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getnameinfo((struct sockaddr *)&sin6, sizeof(sin6), host, sizeof(host), serv, sizeof(serv), 0); |
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]])],[ |
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have_addrinfo=yes |
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],[ |
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have_addrinfo=no |
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]) |
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]) |
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if test x"$have_addrinfo" = "xno" ; then |
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AC_DEFINE(NEED_ADDRINFO,1,[Enable getaddrinfo emulation]) |
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if test x"$enable_ipv6" = "xyes" ; then |
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AC_MSG_ERROR([system doesn't support necessary interfaces for ipv6 support]) |
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fi |
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msg_ipv6=no |
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else |
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AC_ARG_ENABLE(ipv6, [ --enable-ipv6=[no/yes] Enable support for resolving IPv6 addresses.],,enable_ipv6=yes) |
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if test x"$enable_ipv6" = "xyes"; then |
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msg_ipv6=yes |
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AC_DEFINE(ENABLE_IPv6,1,[Enable IPv6 support]) |
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AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ |
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]], [[ |
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struct addrinfo hints; |
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hints.ai_flags = AI_ADDRCONFIG; |
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]])],[ |
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AC_DEFINE(HAVE_AI_ADDRCONFIG,1,[Define if the system defines the AI_ADDRCONFIG flag for getaddrinfo]) |
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],[]) |
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else |
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msg_ipv6=no |
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fi |
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fi |
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AM_CONDITIONAL(ENABLE_IPv6, test "x$enable_ipv6" = "xyes") |
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]) |
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