diff -Nru aspcud-1.9.4/debian/changelog aspcud-1.9.4/debian/changelog
--- aspcud-1.9.4/debian/changelog	2018-12-25 18:44:23.000000000 +0100
+++ aspcud-1.9.4/debian/changelog	2020-11-11 21:53:03.000000000 +0100
@@ -1,3 +1,10 @@
+aspcud (1:1.9.4-2.1) unstable; urgency=medium
+
+  * Non-maintainer upload.
+  * Fix FTBFS against boost_1,74. (Closes: #974539)
+
+ -- Anton Gladky <gladk@debian.org>  Wed, 11 Nov 2020 21:53:03 +0100
+
 aspcud (1:1.9.4-2) unstable; urgency=medium
 
   * Update Vcs-* to salsa
diff -Nru aspcud-1.9.4/debian/patches/fix_boost_174_FTBFS.patch aspcud-1.9.4/debian/patches/fix_boost_174_FTBFS.patch
--- aspcud-1.9.4/debian/patches/fix_boost_174_FTBFS.patch	1970-01-01 01:00:00.000000000 +0100
+++ aspcud-1.9.4/debian/patches/fix_boost_174_FTBFS.patch	2020-11-11 21:53:03.000000000 +0100
@@ -0,0 +1,15 @@
+Description: Fix FTBFS against boost_1.74
+Author: Anton Gladky <gladk@debian.org>
+Last-Update: 2020-11-11
+
+--- aspcud-1.9.4.orig/libcudf/src/dependency.cpp
++++ aspcud-1.9.4/libcudf/src/dependency.cpp
+@@ -473,7 +473,7 @@ void ConflictGraph::cliques_(bool verbos
+         }
+         else {
+             PackageList candidates = component, next;
+-            boost::sort(candidates, boost::bind(&ConflictGraph::edgeSort, this, _1, _2));
++            boost::sort(candidates, boost::bind(&ConflictGraph::edgeSort, this, boost::placeholders::_1, boost::placeholders::_2));
+             // TODO: sort by out-going edges
+             do {
+                 cliques.push_back(PackageList());
diff -Nru aspcud-1.9.4/debian/patches/series aspcud-1.9.4/debian/patches/series
--- aspcud-1.9.4/debian/patches/series	2018-12-25 18:44:23.000000000 +0100
+++ aspcud-1.9.4/debian/patches/series	2020-11-11 21:53:03.000000000 +0100
@@ -0,0 +1 @@
+fix_boost_174_FTBFS.patch