满庭芳·源流归一

结论：LinuxCNC rs274ngc 源码移植边界继续收拢。已将 rs274ngc 头文件纳入 manifest 跟踪，core 编译组仍只包含可编译源文件；启用 CNC_SIM_ENABLE_LINUXCNC_RS274_BACKEND 时 API 默认使用 LinuxCNC rs274 后端；M428/M429/M430 与 5axis/TRT/TDR/RTCP 相关路径继续保持来自 LinuxCNC 源码或 remap 配置的薄桥接。

验证：./test-linuxcnc-source-syntax.sh；./test-linuxcnc-api-native.sh；./test-native.sh；./test-linuxcnc-source-link.sh。

list-linuxcnc-source-files.sh

@@ -4,21 +4,43 @@ set -euo pipefail
 cd "$(dirname "$0")"
 
 linuxcnc_root=${LINUXCNC_ROOT:-../linuxcnc}
+missing_source_message="missing LinuxCNC source"
 
-if [[ ! -d "$linuxcnc_root" ]]; then
-    echo "missing LinuxCNC root: $linuxcnc_root" >&2
-    exit 1
-fi
+LINUXCNC_ROOT="$linuxcnc_root" ./check-linuxcnc-inputs.sh --root-only
+
+while [[ "$#" -gt 0 ]]; do
+    case "$1" in
+        --missing-message)
+            if [[ "$#" -lt 2 ]]; then
+                echo "missing --missing-message value" >&2
+                exit 1
+            fi
+            missing_source_message=$2
+            shift 2
+            ;;
+        --)
+            shift
+            break
+            ;;
+        -*)
+            echo "unknown source file option: $1" >&2
+            exit 1
+            ;;
+        *)
+            break
+            ;;
+    esac
+done
 
 if [[ "$#" -eq 0 ]]; then
-    echo "usage: $0 <linuxcnc-relative-source>..." >&2
+    echo "usage: $0 [--missing-message <message>] <linuxcnc-relative-source>..." >&2
     exit 1
 fi
 
 for source in "$@"; do
     full_source="$linuxcnc_root/$source"
     if [[ ! -f "$full_source" ]]; then
-        echo "missing LinuxCNC source: $source" >&2
+        echo "$missing_source_message: $source" >&2
         exit 1
     fi
     printf '%s\n' "$full_source"