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-rw-r--r--configure.ac2
1 files changed, 2 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac
index ed7aa6869..7cf8bc57d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -847,6 +847,8 @@ if test "$have_adns" = "yes"; then
ADNSLIBS="-ladns"
fi
AC_SUBST(ADNSLIBS)
+# Newer adns versions feature a free function to be used under W32.
+AC_CHECK_FUNCS(adns_free)
#