diff --git a/adolc.changes b/adolc.changes
index 5bdb2bf..b431ffa 100644
--- a/adolc.changes
+++ b/adolc.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Fri Oct  7 13:18:20 UTC 2022 - Dirk Müller <dmueller@suse.com>
+
+- add handle-lib64-for-riscv64.patch
+
 -------------------------------------------------------------------
 Fri Jul 24 21:47:06 UTC 2020 - Matthias Eliasson <elimat@opensuse.org>
 
diff --git a/adolc.spec b/adolc.spec
index 35e943e..070c879 100644
--- a/adolc.spec
+++ b/adolc.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package adolc
 #
-# Copyright (c) 2020 SUSE LLC
+# Copyright (c) 2022 SUSE LLC
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
@@ -21,10 +21,12 @@ Name:           adolc
 Version:        2.7.2
 Release:        0
 Summary:        Algorithmic Differentiation Library for C/C++
-License:        GPL-2.0-or-later OR EPL-1.0
+License:        EPL-1.0 OR GPL-2.0-or-later
 URL:            https://github.com/coin-or/ADOL-C
 Source0:        https://github.com/coin-or/ADOL-C/archive/releases/%{version}.tar.gz#/%{name}-%{version}.tar.gz
 Source1:        baselibs.conf
+# from https://github.com/coin-or/ADOL-C/pull/47.patch
+Patch1:         handle-lib64-for-riscv64.patch
 BuildRequires:  ColPack-devel
 BuildRequires:  gcc-c++
 BuildRequires:  libstdc++-devel
@@ -73,7 +75,7 @@ BuildArch:      noarch
 This package provides the user's manual for ADOL-C.
 
 %prep
-%autosetup -n ADOL-C-releases-%{version}
+%autosetup -p1 -n ADOL-C-releases-%{version}
 
 %build
 # autoreconf -v --install --force
diff --git a/handle-lib64-for-riscv64.patch b/handle-lib64-for-riscv64.patch
new file mode 100644
index 0000000..33730f6
--- /dev/null
+++ b/handle-lib64-for-riscv64.patch
@@ -0,0 +1,35 @@
+From 75ef7aee090d3704c8c6dbabf606b220f1834c5b Mon Sep 17 00:00:00 2001
+From: Dirk Mueller <dmueller@suse.com>
+Date: Fri, 7 Oct 2022 15:12:11 +0200
+Subject: [PATCH] Add RISCV-64 to the list of 64bit architectures
+
+---
+ autoconf/ax_boost_base.m4 | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+Index: ADOL-C-releases-2.7.2/autoconf/ax_boost_base.m4
+===================================================================
+--- ADOL-C-releases-2.7.2.orig/autoconf/ax_boost_base.m4
++++ ADOL-C-releases-2.7.2/autoconf/ax_boost_base.m4
+@@ -95,7 +95,7 @@ if test "x$want_boost" = "xyes"; then
+       x86_64)
+         libsubdirs="lib64 libx32 lib lib64"
+         ;;
+-      ppc64|s390x|sparc64|aarch64|ppc64le)
++      ppc64|s390x|sparc64|aarch64|ppc64le|riscv64)
+         libsubdirs="lib64 lib lib64 ppc64le"
+         ;;
+     esac
+Index: ADOL-C-releases-2.7.2/configure
+===================================================================
+--- ADOL-C-releases-2.7.2.orig/configure
++++ ADOL-C-releases-2.7.2/configure
+@@ -18369,7 +18369,7 @@ $as_echo_n "checking for boostlib >= $bo
+       x86_64)
+         libsubdirs="lib64 libx32 lib lib64"
+         ;;
+-      ppc64|s390x|sparc64|aarch64|ppc64le)
++      ppc64|s390x|sparc64|aarch64|ppc64le|riscv64)
+         libsubdirs="lib64 lib lib64 ppc64le"
+         ;;
+     esac