diff -Nru a2jmidid-9/debian/changelog a2jmidid-9/debian/changelog
--- a2jmidid-9/debian/changelog	2019-10-13 16:36:50.000000000 +0000
+++ a2jmidid-9/debian/changelog	2021-10-01 14:19:25.000000000 +0000
@@ -1,3 +1,9 @@
+a2jmidid (9-2ubuntu1) jammy; urgency=medium
+
+  * Enable building on RISC-V (LP: #1945803)
+
+ -- Heinrich Schuchardt <heinrich.schuchardt@canonical.com>  Fri, 01 Oct 2021 16:19:25 +0200
+
 a2jmidid (9-2) unstable; urgency=medium
 
   * Team upload
diff -Nru a2jmidid-9/debian/control a2jmidid-9/debian/control
--- a2jmidid-9/debian/control	2019-10-13 16:09:59.000000000 +0000
+++ a2jmidid-9/debian/control	2021-10-01 14:19:25.000000000 +0000
@@ -1,7 +1,8 @@
 Source: a2jmidid
 Section: sound
 Priority: optional
-Maintainer: Debian Multimedia Maintainers <debian-multimedia@lists.debian.org>
+Maintainer: Ubuntu Developers <ubuntu-devel-discuss@lists.ubuntu.com>
+XSBC-Original-Maintainer: Debian Multimedia Maintainers <debian-multimedia@lists.debian.org>
 Uploaders:
  Adrian Knoth <adi@drcomp.erfurt.thur.de>,
 Build-Depends:
diff -Nru a2jmidid-9/debian/patches/0001-sigsegv-enable-RISC-V-build.patch a2jmidid-9/debian/patches/0001-sigsegv-enable-RISC-V-build.patch
--- a2jmidid-9/debian/patches/0001-sigsegv-enable-RISC-V-build.patch	1970-01-01 00:00:00.000000000 +0000
+++ a2jmidid-9/debian/patches/0001-sigsegv-enable-RISC-V-build.patch	2021-10-01 14:19:25.000000000 +0000
@@ -0,0 +1,47 @@
+From 2c3fbef6854743416d95d85b1565dde51668488c Mon Sep 17 00:00:00 2001
+From: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
+Date: Fri, 1 Oct 2021 16:15:29 +0200
+Subject: [PATCH 1/1] sigsegv: enable RISC-V build
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Avoid build error
+
+../sigsegv.c:104:39: error: ‘mcontext_t’ has no member named ‘gregs’;
+did you mean ‘__gregs’?
+  104 |                 ucontext->uc_mcontext.gregs[i]
+      |                                       ^~~~~
+
+Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
+---
+ sigsegv.c | 6 ++++--
+ 1 file changed, 4 insertions(+), 2 deletions(-)
+
+diff --git a/sigsegv.c b/sigsegv.c
+index fb4456e..6930185 100644
+--- a/sigsegv.c
++++ b/sigsegv.c
+@@ -91,7 +91,9 @@ static void signal_segv(int signum, siginfo_t* info, void*ptr) {
+     a2j_error("info.si_errno = %d", info->si_errno);
+     a2j_error("info.si_code  = %d (%s)", info->si_code, si_codes[info->si_code]);
+     a2j_error("info.si_addr  = %p", info->si_addr);
+-#if !defined(__alpha__) && !defined(__ia64__) && !defined(__FreeBSD_kernel__) && !defined(__arm__) && !defined(__hppa__) && !defined(__sh__) && !defined(__aarch64__)
++#if !defined(__alpha__) && !defined(__ia64__) && \
++    !defined(__FreeBSD_kernel__) && !defined(__arm__) && !defined(__hppa__) && \
++    !defined(__sh__) && !defined(__aarch64__) && !defined(__riscv)
+     for(i = 0; i < NGREG; i++)
+         a2j_error("reg[%02d]       = 0x" REGFORMAT, i,
+ #if defined(__powerpc__) && !defined(__powerpc64__)
+@@ -108,7 +110,7 @@ static void signal_segv(int signum, siginfo_t* info, void*ptr) {
+                 ucontext->uc_mcontext.gregs[i]
+ #endif
+                 );
+-#endif /* alpha, ia64, kFreeBSD, arm, hppa, aarch64 */
++#endif /* alpha, ia64, kFreeBSD, arm, hppa, aarch64, riscv */
+ 
+ #if defined(SIGSEGV_STACK_X86) || defined(SIGSEGV_STACK_IA64)
+ # if defined(SIGSEGV_STACK_IA64)
+-- 
+2.32.0
+
diff -Nru a2jmidid-9/debian/patches/series a2jmidid-9/debian/patches/series
--- a2jmidid-9/debian/patches/series	1970-01-01 00:00:00.000000000 +0000
+++ a2jmidid-9/debian/patches/series	2021-10-01 14:19:25.000000000 +0000
@@ -0,0 +1 @@
+0001-sigsegv-enable-RISC-V-build.patch