---- amanda-2.6.0/config/amanda/ipv6.m4~ 2008-01-28 19:12:25.000000000 +0100
-+++ amanda-2.6.0/config/amanda/ipv6.m4 2008-05-13 11:34:36.000000000 +0200
-@@ -70,32 +70,7 @@
+diff -urNp -x '*.orig' amanda-3.5.1.org/config/amanda/ipv6.m4 amanda-3.5.1/config/amanda/ipv6.m4
+--- amanda-3.5.1.org/config/amanda/ipv6.m4 2017-12-01 14:26:31.000000000 +0100
++++ amanda-3.5.1/config/amanda/ipv6.m4 2021-05-08 10:23:14.050134288 +0200
+@@ -70,32 +70,7 @@ AC_DEFUN([AMANDA_CHECK_IPV6],
[
- case "$target" in
+ case "$host" in
*-pc-cygwin) amanda_cv_working_ipv6=no;;
- *)
- AC_RUN_IFELSE([AC_LANG_SOURCE([[