Install binutils for Linux release packaging

.gitea/README.md

@@ -30,8 +30,9 @@ The check must print `aarch64` (Docker may warn about the host architecture). Ke
 ARM64 image on the server: act_runner cannot pull an ARM-only image using the host's default
 x86_64 platform. The ARM64 job installs an ARM64 JDK 21 inside its container, so
 `jpackage` embeds an ARM64 runtime. It uses the public Gitea source repository at the exact
-workflow commit. The x86_64 container installs `fakeroot` and RPM tools during its job. ARM64
-emulation is slower than a native ARM machine; the job timeout is four hours.
+workflow commit. Both Linux jobs install `fakeroot`, RPM tools, and `binutils` for
+`jpackage` (which calls `objcopy`). ARM64 emulation is slower than a native ARM machine;
+the job timeout is four hours.
 
 ## GitHub hosted Windows and Mac jobs
 

.gitea/workflows/release.yml

@@ -50,14 +50,15 @@ jobs:
           test "$(uname -m)" = x86_64
           if [ "$(id -u)" -eq 0 ]; then
             apt-get update
-            DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends fakeroot rpm xxd
+            DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends fakeroot rpm binutils xxd
           else
             sudo apt-get update
-            sudo DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends fakeroot rpm xxd
+            sudo DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends fakeroot rpm binutils xxd
           fi
           command -v fakeroot
           command -v dpkg-deb
           command -v rpmbuild
+          command -v objcopy
       - name: Test and build JAR, sources, DEB and RPM
         run: ./gradlew clean build sourcesJar createAll --no-daemon --console=plain
       - name: Attach Linux x86_64 files to draft release
@@ -91,7 +92,8 @@ jobs:
           test "$(uname -m)" = aarch64
           apt-get update
           DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends \
-            ca-certificates openjdk-21-jdk fakeroot rpm git curl
+            ca-certificates openjdk-21-jdk fakeroot rpm binutils git curl
+          command -v objcopy
           git clone --quiet https://git.briggen.dev/NilsBriggen/Logisim-Revolution.git source
           cd source
           git checkout --detach "$GITEA_SHA"