diff --git a/cmake/CodegenTargets.cmake b/cmake/CodegenTargets.cmake
index 9aa47b4..1c12faa 100644
--- a/cmake/CodegenTargets.cmake
+++ b/cmake/CodegenTargets.cmake
@@ -1,7 +1,11 @@
 add_custom_target(generate-skate3
-    COMMAND $<TARGET_FILE:rex::rexglue> codegen
-            ${SKATE3_CODEGEN_ARGS}
-            "${CMAKE_CURRENT_BINARY_DIR}/manifests/skate3.toml"
+    # The rexglue codegen tool writes its output and THEN crashes during
+    # static teardown (SIOF / heap-corruption at exit - the cvar registry and
+    # friends are freed out of order). The output is complete and valid, so
+    # wrap the invocation to verify the written files instead of the exit
+    # code: a genuine failure (e.g. unresolved calls without the Title Update
+    # package) produces no output and is still caught.
+    COMMAND bash -c "$<TARGET_FILE:rex::rexglue> codegen ${SKATE3_CODEGEN_ARGS} \"${CMAKE_CURRENT_BINARY_DIR}/manifests/skate3.toml\"; rc=\$?; [ -f \"${CMAKE_CURRENT_SOURCE_DIR}/generated/sources.cmake\" ] || exit \$rc; exit 0"
     COMMAND "${CMAKE_COMMAND}"
             "-DSKATE3_SOURCE_DIR=${CMAKE_CURRENT_SOURCE_DIR}"
             -P "${CMAKE_CURRENT_SOURCE_DIR}/cmake/ApplySkate3CodegenPatches.cmake"
@@ -11,9 +15,7 @@ add_custom_target(generate-skate3
 )
 
 add_custom_target(generate-eawebkit
-    COMMAND $<TARGET_FILE:rex::rexglue> codegen
-            ${SKATE3_CODEGEN_ARGS}
-            "${CMAKE_CURRENT_BINARY_DIR}/manifests/eawebkit.toml"
+    COMMAND bash -c "$<TARGET_FILE:rex::rexglue> codegen ${SKATE3_CODEGEN_ARGS} \"${CMAKE_CURRENT_BINARY_DIR}/manifests/eawebkit.toml\"; rc=\$?; [ -f \"${CMAKE_CURRENT_SOURCE_DIR}/generated/eawebkit/sources.cmake\" ] || exit \$rc; exit 0"
     WORKING_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}"
     COMMENT "Generating recompiled code for EAWebkit.xex"
     VERBATIM
diff --git a/tools/release/release.sh b/tools/release/release.sh
index 0b71f29..6742506 100755
--- a/tools/release/release.sh
+++ b/tools/release/release.sh
@@ -19,6 +19,10 @@
 #   --game-root DIR   extracted game dump (default: $REPO/game)
 #   --tu FILE         optional Title Update STFS package for codegen
 #   --os linux|windows|macos   override platform (default: host OS)
+#   --cmake-args "..."         extra flags appended to every cmake configure
+#                              call (e.g. -DCMAKE_C_COMPILER=clang-22
+#                              -DCMAKE_CXX_COMPILER=clang++-22
+#                              -DCMAKE_LINKER=ld.lld on distros without clang-20)
 #   --upload          publish the zip to a Forgejo Release
 #
 # Env for --upload:
@@ -36,6 +40,7 @@ TAG=""
 GAME_ROOT="${SKATE3_GAME_DATA_ROOT:-$REPO/game}"
 TU="${SKATE3_TITLE_UPDATE_PACKAGE:-}"
 OS_ARG=""
+CMAKE_ARGS=""
 
 while [ $# -gt 0 ]; do
   case "$1" in
@@ -43,9 +48,10 @@ while [ $# -gt 0 ]; do
     --game-root) GAME_ROOT="$2"; shift 2;;
     --tu) TU="$2"; shift 2;;
     --os) OS_ARG="$2"; shift 2;;
+    --cmake-args) CMAKE_ARGS="$2"; shift 2;;
     --upload) UPLOAD=1; shift;;
     -h|--help)
-      sed -n '2,30p' "$0"; exit 0;;
+      sed -n '2,32p' "$0"; exit 0;;
     *) echo "unknown argument: $1"; exit 2;;
   esac
 done
@@ -79,12 +85,12 @@ if [ -n "$TU" ]; then
 fi
 
 echo "==> Release $TAG ($EXT)  preset=$PRESET  game=$GAME_ROOT"
-echo "==> Configure"
-cmake --preset "$PRESET" -DSKATE3_GAME_DATA_ROOT="$GAME_ROOT" $TU_ARGS
+echo "==> Configure (extra args: ${CMAKE_ARGS:-none})"
+cmake --preset "$PRESET" -DSKATE3_GAME_DATA_ROOT="$GAME_ROOT" $TU_ARGS $CMAKE_ARGS
 echo "==> Generate recompiled code"
 cmake --build --preset "$PRESET" --target generate-all --parallel
 echo "==> Reconfigure (generated sources)"
-cmake --preset "$PRESET" -DSKATE3_GAME_DATA_ROOT="$GAME_ROOT" $TU_ARGS
+cmake --preset "$PRESET" -DSKATE3_GAME_DATA_ROOT="$GAME_ROOT" $TU_ARGS $CMAKE_ARGS
 echo "==> Build"
 cmake --build --preset "$PRESET" --parallel
 
@@ -93,7 +99,13 @@ OUT="out/build/$PRESET"
 STAGE="$NAME"
 rm -rf "$STAGE"; mkdir -p "$STAGE"
 cp "$OUT/$BIN" "$STAGE/"
-cp "$OUT/$LIB" "$STAGE/" 2>/dev/null || true
+# The rexglue runtime lib carries a config suffix (librexruntimerd.so for
+# relwithdebinfo, librexruntime.so for release); the binary links whichever
+# was built, so ship it under its real name.
+RUNTIME="$(ls "$OUT"/librexruntime*.so "$OUT"/librexruntime*.dll "$OUT"/librexruntime*.dylib 2>/dev/null | head -1 || true)"
+if [ -n "$RUNTIME" ]; then
+  cp "$RUNTIME" "$STAGE/"
+fi
 cp "$OUT/ghost_relay" "$STAGE/" 2>/dev/null || true
 cp "$OUT/ghost_relay.exe" "$STAGE/" 2>/dev/null || true
 # Title-update patches staged next to the binary when the build used the TU