X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~mdw/git/tripe/blobdiff_plain/11ad66c29764521f87f0dd399a1e592147c7af36..f8d6fc7b379fc963c1a310872fb030c69c7aff7d:/configure.ac

diff --git a/configure.ac b/configure.ac
index 84fcf5a9..887f81d3 100644
--- a/configure.ac
+++ b/configure.ac
@@ -63,6 +63,27 @@ case "$host_os" in
     ;;
 esac
 
+AC_ARG_WITH([adns],
+  AS_HELP_STRING([--with-adns],
+		 [use ADNS library for background name resolution]),
+  [want_adns=$withval],
+  [want_adns=auto])
+case $want_adns in
+  no) ;;
+  *) AC_CHECK_LIB([adns], [adns_submit], [have_adns=yes], [have_adns=no]) ;;
+esac
+AC_SUBST([ADNS_LIBS])
+case $want_adns,$have_adns in
+  yes,no)
+    AC_MSG_ERROR([ADNS library not found but explicitly requested])
+    ;;
+  yes,yes | auto,yes)
+    ADNS_LIBS="-ladns"
+    AC_DEFINE([HAVE_LIBADNS], [1],
+	      [Define if the GNU adns library is available.])
+    ;;
+esac
+
 PKG_CHECK_MODULES([mLib], [mLib >= 2.2.1])
 PKG_CHECK_MODULES([catacomb], [catacomb >= 2.2.2-38])