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Allow compiling for Windows XP and higher.

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This allows us to use getaddrinfo(), getnameinfo() and related functions, which
allow tinc to make connections over existing IPv6 networks. These functions are
not available on Windows 2000 however. By default, support is enabled, but when
compiling for Windows 2000 the configure switch --with-windows2000 should be
used.

Since getaddrinfo() et al. are not functions but macros on Windows, we have to
use AC_CHECK_DECLS() instead of AC_CHECK_FUNCS() in configure.in.
This commit is contained in:
Guus Sliepen 2009-09-15 00:24:31 +02:00
parent f80bf14f28
commit fa9bedd47c
7 changed files with 25 additions and 19 deletions
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7
configure.in
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@ -82,6 +82,11 @@ AC_ARG_ENABLE(tunemu,
]
)
AC_ARG_WITH(windows2000,
AS_HELP_STRING([--with-windows2000], [compile with support for Windows 2000. This disables support for tunneling over existing IPv6 networks.]),
[AC_DEFINE(WITH_WINDOWS2000, 1, [Compile with support for Windows 2000])]
)
AM_CONDITIONAL(TUNEMU, test "$tunemu" = true)
AC_CACHE_SAVE
@ -143,7 +148,7 @@ AC_CHECK_FUNC(gethostbyname, [], [
AC_CHECK_LIB(nsl, gethostbyname)
])
AC_CHECK_FUNCS([freeaddrinfo gai_strerror getaddrinfo getnameinfo inet_aton],
AC_CHECK_DECLS([freeaddrinfo, gai_strerror, getaddrinfo, getnameinfo],
[], [], [#include "have.h"]
)