diff -Nru rtorrent-0.9.6/debian/changelog rtorrent-0.9.6/debian/changelog
--- rtorrent-0.9.6/debian/changelog	2016-02-07 09:45:28.000000000 +0000
+++ rtorrent-0.9.6/debian/changelog	2017-08-12 19:20:48.000000000 +0000
@@ -1,8 +1,9 @@
-rtorrent (0.9.6-2build1) xenial; urgency=medium
+rtorrent (0.9.6-3) unstable; urgency=medium
 
-  * No-change rebuild for ncurses6 transition.
+  [ Rene Engelhard ]
+  * use PKG_CHECK_MODULES instead of AM_PATH_CPPUNIT (closes: #862131)
 
- -- Matthias Klose <doko@ubuntu.com>  Sun, 07 Feb 2016 09:45:28 +0000
+ -- Jonathan McDowell <noodles@earth.li>  Sat, 12 Aug 2017 15:20:48 -0400
 
 rtorrent (0.9.6-2) unstable; urgency=medium
 
diff -Nru rtorrent-0.9.6/debian/control rtorrent-0.9.6/debian/control
--- rtorrent-0.9.6/debian/control	2015-11-06 17:20:27.000000000 +0000
+++ rtorrent-0.9.6/debian/control	2017-08-12 19:20:48.000000000 +0000
@@ -15,7 +15,8 @@
  libncurses5-dev,
  libncursesw5-dev,
  libtorrent-dev (>= 0.13.6),
- libxmlrpc-core-c3-dev
+ libxmlrpc-core-c3-dev,
+ pkg-config
 Standards-Version: 3.9.6
 Vcs-Git: git://git.debian.org/git/collab-maint/rtorrent.git
 Vcs-Browser: http://git.debian.org/?p=collab-maint/rtorrent.git
diff -Nru rtorrent-0.9.6/debian/patches/pkg-config.diff rtorrent-0.9.6/debian/patches/pkg-config.diff
--- rtorrent-0.9.6/debian/patches/pkg-config.diff	1970-01-01 00:00:00.000000000 +0000
+++ rtorrent-0.9.6/debian/patches/pkg-config.diff	2017-08-12 19:20:48.000000000 +0000
@@ -0,0 +1,17 @@
+Description: use PKG_CHECK_MODULES instead of AM_PATH_CPPUNIT
+Origin: vendor
+Bug-Debian: https://bugs.debian.org/862131
+Forwarded: no
+Last-Update: 2017-05-15
+
+--- rtorrent-0.9.6.orig/configure.ac
++++ rtorrent-0.9.6/configure.ac
+@@ -4,7 +4,7 @@ AC_DEFINE(API_VERSION, 9, api version)
+ 
+ AM_INIT_AUTOMAKE
+ AC_CONFIG_HEADERS(config.h)
+-AM_PATH_CPPUNIT(1.9.6)
++PKG_CHECK_MODULES(CPPUNIT, cppunit >= 1.9.6)
+ 
+ AC_PROG_CXX
+ AC_PROG_LIBTOOL
diff -Nru rtorrent-0.9.6/debian/patches/series rtorrent-0.9.6/debian/patches/series
--- rtorrent-0.9.6/debian/patches/series	1970-01-01 00:00:00.000000000 +0000
+++ rtorrent-0.9.6/debian/patches/series	2017-08-12 19:20:48.000000000 +0000
@@ -0,0 +1 @@
+pkg-config.diff