LMDB: include filename in open-error message

[exim.git] / src / src / dane.c

diff --git a/src/src/dane.c b/src/src/dane.c
index 20dfe5b180a28fc9ac1e3908110d20dfd955b48d..137c7541831a4cedf3d74a2c85755548881405a5 100644 (file)
--- a/src/src/dane.c
+++ b/src/src/dane.c
@@ -33,6 +33,11 @@ static void dummy(int x) { dummy(x-1); }
 #  error DANE support requires that TLS support must be enabled. Abort build.
 # endif
 
+/* DNSSEC support is also required */
+# ifndef RES_USE_DNSSEC
+#  error DANE support requires that the DNS resolver library supports DNSSEC
+# endif
+
 # ifdef USE_GNUTLS
 #  include "dane-gnu.c"
 # else