M test.sh → test.sh

@@ -41,10 +41,20 @@ [[ -f "$path" ]] || fail "Missing file: $path"
 }
 
 build_xyw() {
-  if command -v make >/dev/null 2>&1; then
-    (cd "$ROOT_DIR" && make xyw)
+  # The Makefile relies on GNU make extensions (ifeq, :=, $(shell ...)),
+  # which BSD make (e.g. NetBSD/FreeBSD's default `make`) cannot parse,
+  # use "gmake" if available to force GNU make if available
+  local make_cmd=""
+  if command -v gmake >/dev/null 2>&1; then
+    make_cmd="gmake"
+  elif command -v make >/dev/null 2>&1; then
+    make_cmd="make"
+  fi
+
+  if [[ -n "$make_cmd" ]]; then
+    (cd "$ROOT_DIR" && "$make_cmd" xyw)
   else
-    echo "WARN: 'make' not found; using existing xyw binary if present." >&2
+    echo "WARN: 'make'/'gmake' not found; using existing xyw binary if present." >&2
   fi
 }