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-rw-r--r--configure.ac9
1 files changed, 8 insertions, 1 deletions
diff --git a/configure.ac b/configure.ac
index d22abdfb5..7f69430b7 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2006,7 +2006,14 @@ AST_EXT_TOOL_CHECK([NETSNMP], [net-snmp-config], , [--agent-libs],
AST_EXT_LIB_CHECK([NEWT], [newt], [newtBell], [newt.h])
-AST_EXT_LIB_CHECK([UNBOUND], [unbound], [ub_ctx_create], [unbound.h], [])
+# libunbound v1.5.0 added the ub_ctx_add_ta_autr() API call that we can
+# detect as a useable version so that is going to be the minimum version
+# that we will require.
+# Technically v1.4.21 and later could be used but v1.4.21 has a configure
+# script bug which does not find the ldns library. The bug is fixed in
+# v1.4.22 but that version is not easily detectable.
+#
+AST_EXT_LIB_CHECK([UNBOUND], [unbound], [ub_ctx_add_ta_autr], [unbound.h], [])
AST_EXT_LIB_CHECK([UNIXODBC], [odbc], [SQLConnect], [sql.h], [])