diff -Nru dart-6.13.2+ds/debian/changelog dart-6.13.2+ds/debian/changelog
--- dart-6.13.2+ds/debian/changelog	2024-04-23 14:27:55.000000000 +0000
+++ dart-6.13.2+ds/debian/changelog	2024-04-24 11:04:02.000000000 +0000
@@ -1,7 +1,13 @@
+dart (6.13.2+ds-0ubuntu2) noble; urgency=medium
+
+  * Build package on riscv64 again. It's a 64-bit architecture.
+
+ -- Benjamin Drung <bdrung@ubuntu.com>  Wed, 24 Apr 2024 13:04:02 +0200
+
 dart (6.13.2+ds-0ubuntu1) noble; urgency=medium
 
   * Restrict package to 64bits. Upstream does not support 32bits
-  * New upstream version 6.13.2+ds
+  * New upstream version 6.13.2+ds (LP: #2053254)
   * Rename files from 6.12t64 to 6.13
   * Rediff patches
   * Update dependencies in d/control
diff -Nru dart-6.13.2+ds/debian/control dart-6.13.2+ds/debian/control
--- dart-6.13.2+ds/debian/control	2024-04-23 14:27:55.000000000 +0000
+++ dart-6.13.2+ds/debian/control	2024-04-24 11:00:40.000000000 +0000
@@ -64,7 +64,7 @@
  software created by the Georgia Tech Graphics Lab.
 
 Package: libdart-dev
-Architecture: amd64 arm64 ppc64el s390x
+Architecture: amd64 arm64 ppc64el riscv64 s390x
 Section: libdevel
 Depends: ${misc:Depends},
          libdart6.13 (= ${binary:Version}),
@@ -83,7 +83,7 @@
 
 Package: libdart6.13
 Provides: ${t64:Provides}
-Architecture: amd64 arm64 ppc64el s390x
+Architecture: amd64 arm64 ppc64el riscv64 s390x
 Multi-Arch: same
 Section: libs
 Depends: ${misc:Depends},
@@ -96,7 +96,7 @@
 
 Package: libdart-collision-bullet6.13
 Provides: ${t64:Provides}
-Architecture: amd64 arm64 ppc64el s390x
+Architecture: amd64 arm64 ppc64el riscv64 s390x
 Section: libs
 Depends: ${shlibs:Depends},
          ${misc:Depends}
@@ -108,7 +108,7 @@
  This package contains the collision library with Bullet backend.
 
 Package: libdart-collision-bullet-dev
-Architecture: amd64 arm64 ppc64el s390x
+Architecture: amd64 arm64 ppc64el riscv64 s390x
 Section: libdevel
 Depends: ${misc:Depends},
          libdart-dev,
@@ -120,7 +120,7 @@
 
 Package: libdart-collision-ode6.13
 Provides: ${t64:Provides}
-Architecture: amd64 arm64 ppc64el s390x
+Architecture: amd64 arm64 ppc64el riscv64 s390x
 Section: libs
 Depends: ${shlibs:Depends},
          ${misc:Depends}
@@ -132,7 +132,7 @@
  This package contains the collision library with ODE backend.
 
 Package: libdart-collision-ode-dev
-Architecture: amd64 arm64 ppc64el s390x
+Architecture: amd64 arm64 ppc64el riscv64 s390x
 Section: libdevel
 Depends: ${misc:Depends},
          libdart-dev,
@@ -146,7 +146,7 @@
  development.
 
 Package: libdart-utils-dev
-Architecture: amd64 arm64 ppc64el s390x
+Architecture: amd64 arm64 ppc64el riscv64 s390x
 Section: libdevel
 Depends: ${misc:Depends},
          libdart-dev,
@@ -162,7 +162,7 @@
 
 Package: libdart-utils6.13
 Provides: ${t64:Provides}
-Architecture: amd64 arm64 ppc64el s390x
+Architecture: amd64 arm64 ppc64el riscv64 s390x
 Section: libs
 Depends: ${misc:Depends},
          ${shlibs:Depends}
@@ -174,7 +174,7 @@
  This package contains the DART utils library.
 
 Package: libdart-utils-urdf-dev
-Architecture: amd64 arm64 ppc64el s390x
+Architecture: amd64 arm64 ppc64el riscv64 s390x
 Section: libdevel
 Depends: ${misc:Depends},
          libdart-dev,
@@ -190,7 +190,7 @@
 
 Package: libdart-utils-urdf6.13
 Provides: ${t64:Provides}
-Architecture: amd64 arm64 ppc64el s390x
+Architecture: amd64 arm64 ppc64el riscv64 s390x
 Section: libs
 Depends: ${shlibs:Depends},
          ${misc:Depends}
@@ -202,7 +202,7 @@
  This package contains the Utils URDF library.
 
 Package: libdart-gui-dev
-Architecture: amd64 arm64 ppc64el s390x
+Architecture: amd64 arm64 ppc64el riscv64 s390x
 Section: libdevel
 Depends: ${misc:Depends},
          libdart-dev,
@@ -219,7 +219,7 @@
 
 Package: libdart-gui6.13
 Provides: ${t64:Provides}
-Architecture: amd64 arm64 ppc64el s390x
+Architecture: amd64 arm64 ppc64el riscv64 s390x
 Section: libs
 Depends: ${misc:Depends},
          ${shlibs:Depends}
@@ -231,7 +231,7 @@
  This package contains the GUI library.
 
 Package: libdart-gui-osg-dev
-Architecture: amd64 arm64 ppc64el s390x
+Architecture: amd64 arm64 ppc64el riscv64 s390x
 Section: libdevel
 Depends: ${misc:Depends},
          libdart-gui-dev,
@@ -247,7 +247,7 @@
 
 Package: libdart-gui-osg6.13
 Provides: ${t64:Provides}
-Architecture: amd64 arm64 ppc64el s390x
+Architecture: amd64 arm64 ppc64el riscv64 s390x
 Section: libs
 Depends: ${misc:Depends},
          ${shlibs:Depends}
@@ -259,7 +259,7 @@
  This package contains the GUI OpenSceneGraph optimizer library.
 
 Package: libdart-optimizer-nlopt-dev
-Architecture: amd64 arm64 ppc64el s390x
+Architecture: amd64 arm64 ppc64el riscv64 s390x
 Section: libdevel
 Depends: ${misc:Depends},
          libdart-dev,
@@ -274,7 +274,7 @@
 
 Package: libdart-optimizer-nlopt6.13
 Provides: ${t64:Provides}
-Architecture: amd64 arm64 ppc64el s390x
+Architecture: amd64 arm64 ppc64el riscv64 s390x
 Section: libs
 Depends: ${misc:Depends},
          ${shlibs:Depends}
@@ -286,7 +286,7 @@
  This package contains the NLOPT optimizer library.
 
 Package: libdart-optimizer-ipopt-dev
-Architecture: amd64 arm64 ppc64el s390x
+Architecture: amd64 arm64 ppc64el riscv64 s390x
 Section: libdevel
 Depends: ${misc:Depends},
          libdart-dev,
@@ -301,7 +301,7 @@
 
 Package: libdart-optimizer-ipopt6.13
 Provides: ${t64:Provides}
-Architecture: amd64 arm64 ppc64el s390x
+Architecture: amd64 arm64 ppc64el riscv64 s390x
 Section: libs
 Depends: ${misc:Depends},
          ${shlibs:Depends}
@@ -313,7 +313,7 @@
  This package contains the ipopt optimizer library.
 
 Package: libdart-external-convhull-3d-dev
-Architecture: amd64 arm64 ppc64el s390x
+Architecture: amd64 arm64 ppc64el riscv64 s390x
 Section: libdevel
 Depends: ${misc:Depends},
 Pre-Depends: ${misc:Pre-Depends}
@@ -324,7 +324,7 @@
  A header only C implementation of the 3-D quickhull algorithm.
 
 Package: libdart-external-ikfast-dev
-Architecture: amd64 arm64 ppc64el s390x
+Architecture: amd64 arm64 ppc64el riscv64 s390x
 Section: libdevel
 Depends: ${misc:Depends},
          libdart-dev
@@ -337,7 +337,7 @@
  development.
 
 Package: libdart-external-imgui-dev
-Architecture: amd64 arm64 ppc64el s390x
+Architecture: amd64 arm64 ppc64el riscv64 s390x
 Section: libdevel
 Depends: ${misc:Depends},
          libdart-dev,
@@ -351,7 +351,7 @@
 
 Package: libdart-external-imgui6.13
 Provides: ${t64:Provides}
-Architecture: amd64 arm64 ppc64el s390x
+Architecture: amd64 arm64 ppc64el riscv64 s390x
 Section: libs
 Depends: ${misc:Depends},
          ${shlibs:Depends}
@@ -363,7 +363,7 @@
  This package contains the imgui library.
 
 Package: libdart-external-lodepng-dev
-Architecture: amd64 arm64 ppc64el s390x
+Architecture: amd64 arm64 ppc64el riscv64 s390x
 Section: libdevel
 Depends: ${misc:Depends},
          libdart-dev,
@@ -377,7 +377,7 @@
 
 Package: libdart-external-lodepng6.13
 Provides: ${t64:Provides}
-Architecture: amd64 arm64 ppc64el s390x
+Architecture: amd64 arm64 ppc64el riscv64 s390x
 Section: libs
 Depends: ${misc:Depends},
          ${shlibs:Depends}
@@ -389,7 +389,7 @@
  This package contains the lodepng library.
 
 Package: libdart-external-odelcpsolver-dev
-Architecture: amd64 arm64 ppc64el s390x
+Architecture: amd64 arm64 ppc64el riscv64 s390x
 Section: libdevel
 Depends: ${misc:Depends},
          libdart-external-odelcpsolver6.13 (= ${binary:Version})
@@ -402,7 +402,7 @@
 
 Package: libdart-external-odelcpsolver6.13
 Provides: ${t64:Provides}
-Architecture: amd64 arm64 ppc64el s390x
+Architecture: amd64 arm64 ppc64el riscv64 s390x
 Section: libs
 Depends: ${misc:Depends},
          ${shlibs:Depends}
@@ -414,7 +414,7 @@
  This package contains the odelcpsolver library.
 
 Package: python3-dartpy
-Architecture: amd64 arm64 ppc64el s390x
+Architecture: amd64 arm64 ppc64el riscv64 s390x
 Section: python
 Pre-Depends: ${misc:Pre-Depends}
 Depends: ${misc:Depends},
@@ -429,7 +429,7 @@
  DART Python bindings.
 
 Package: libdart-all-dev
-Architecture: amd64 arm64 ppc64el s390x
+Architecture: amd64 arm64 ppc64el riscv64 s390x
 Section: libdevel
 Depends: ${misc:Depends},
          libdart-dev,