Autodetect support for IPv6 by default

[ngircd-alex.git] / configure.ng

diff --git a/configure.ng b/configure.ng
index ff376a5050ad22f77fc6681e1dd6c4d8d8fe6263..195e4067beda5d12e6b0e58032c6848313ee548e 100644 (file)
--- a/configure.ng
+++ b/configure.ng
@@ -1,6 +1,6 @@
 #
 # ngIRCd -- The Next Generation IRC Daemon
-# Copyright (c)2001-2014 Alexander Barton (alex@barton.de) and Contributors
+# Copyright (c)2001-2024 Alexander Barton (alex@barton.de) and Contributors
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -639,18 +639,24 @@ if test "$x_ircplus_on" = "yes"; then
 fi
 
 # enable support for IPv6?
-x_ipv6_on=no
+
+x_ipv6_on=yes
 AC_ARG_ENABLE(ipv6,
-       AS_HELP_STRING([--enable-ipv6],
-                      [enable IPv6 protocol support]),
-       if test "$enableval" = "yes"; then x_ipv6_on=yes; fi
+       AS_HELP_STRING([--disable-ipv6],
+                      [disable IPv6 protocol support (autodetected by default)]),
+       [       if test "$enableval" = "no"; then
+                       x_ipv6_on=no
+               else
+                       AC_CHECK_FUNCS(
+                               [getaddrinfo getnameinfo],,
+                               AC_MSG_ERROR([required function missing for IPv6 support!])
+                       )
+               fi
+       ],
+       [       AC_CHECK_FUNCS([getaddrinfo getnameinfo],, x_ipv6_on=no)
+       ]
 )
 if test "$x_ipv6_on" = "yes"; then
-       # getaddrinfo() and getnameinfo() are optional when not compiling
-       # with IPv6 support, but are required for IPv6 to work!
-       AC_CHECK_FUNCS([ \
-               getaddrinfo getnameinfo \
-               ],,AC_MSG_ERROR([required function missing for IPv6 support!]))
        AC_DEFINE(WANT_IPV6, 1)
 fi