Index: node-v21.7.1/addon-rpm.gypi
===================================================================
--- /dev/null
+++ node-v21.7.1/addon-rpm.gypi
@@ -0,0 +1,35 @@
+{
+  'target_defaults': {
+    'type': 'loadable_module',
+    'product_prefix': '',
+    'include_dirs': [
+      '/usr/include/node21/',
+      '/usr/include/'
+    ],
+
+    'target_conditions': [
+      ['_type=="loadable_module"', {
+        'product_extension': 'node',
+        'defines': [ 'BUILDING_NODE_EXTENSION' ],
+      }]
+    ],
+
+    'conditions': [
+      [ 'OS=="mac"', {
+        'libraries': [ '-undefined dynamic_lookup' ],
+        'xcode_settings': {
+          'DYLIB_INSTALL_NAME_BASE': '@rpath'
+        },
+      }],
+      [ 'OS=="win"', {
+        'libraries': [ '-l<(node_root_dir)/$(Configuration)/node.lib' ],
+        # warning C4251: 'node::ObjectWrap::handle_' : class 'v8::Persistent<T>'
+        # needs to have dll-interface to be used by clients of class 'node::ObjectWrap'
+        'msvs_disabled_warnings': [ 4251 ],
+      }],
+      [ 'OS=="freebsd" or OS=="openbsd" or OS=="solaris" or (OS=="linux" and target_arch!="ia32")', {
+        'cflags': [ '-fPIC' ],
+      }]
+    ]
+  }
+}
Index: node-v21.7.1/deps/npm/node_modules/node-gyp/lib/configure.js
===================================================================
--- node-v21.7.1.orig/deps/npm/node_modules/node-gyp/lib/configure.js
+++ node-v21.7.1/deps/npm/node_modules/node-gyp/lib/configure.js
@@ -36,10 +36,6 @@ async function configure (gyp, argv) {
       if ('v' + release.version !== process.version) {
         // if --target was given, then determine a target version to compile for
         log.verbose('get node dir', 'compiling against --target node version: %s', release.version)
-      } else {
-        // if no --target was specified then use the current host node version
-        log.verbose('get node dir', 'no --target version specified, falling back to host node version: %s', release.version)
-      }
 
       if (!release.semver) {
         // could not parse the version string with semver
@@ -54,6 +50,12 @@ async function configure (gyp, argv) {
 
       log.verbose('get node dir', 'target node version installed:', release.versionDir)
       nodeDir = path.resolve(gyp.devDir, release.versionDir)
+      } else {
+        // if no --target was specified then use RPM-installed headers
+        log.verbose('get node dir', 'no --target version specified, falling back to RPM installed headers')
+        nodeDir = '/usr/include/node21'
+        createBuildDir()
+      }
     }
 
     return createBuildDir()
@@ -201,8 +203,16 @@ async function configure (gyp, argv) {
 
     // this logic ported from the old `gyp_addon` python file
     const gypScript = path.resolve(__dirname, '..', 'gyp', 'gyp_main.py')
-    const addonGypi = path.resolve(__dirname, '..', 'addon.gypi')
-    let commonGypi = path.resolve(nodeDir, 'include/node/common.gypi')
+    let addon_gypi_file = gyp.opts.target || gyp.opts.nodedir ? 'addon.gypi' : 'addon-rpm.gypi'
+    let addonGypi = path.resolve(__dirname, '..', addon_gypi_file)
+    let commonGypi = path.resolve(nodeDir, 'include/node21/common.gypi')
+
+    try {
+      await fs.stat(commonGypi)
+    } catch (err) {
+      commonGypi = path.resolve(nodeDir, 'include/node/common.gypi')
+    }
+
     try {
       await fs.stat(commonGypi)
     } catch (err) {
Index: node-v21.7.1/deps/npm/node_modules/node-gyp/addon.gypi
===================================================================
--- node-v21.7.1.orig/deps/npm/node_modules/node-gyp/addon.gypi
+++ node-v21.7.1/deps/npm/node_modules/node-gyp/addon.gypi
@@ -18,6 +18,7 @@
     ],
 
     'include_dirs': [
+      '<(node_root_dir)/include/node21',
       '<(node_root_dir)/include/node',
       '<(node_root_dir)/src',
       '<(node_root_dir)/deps/openssl/config',
Index: node-v21.7.1/tools/build_addons.py
===================================================================
--- node-v21.7.1.orig/tools/build_addons.py
+++ node-v21.7.1/tools/build_addons.py
@@ -27,7 +27,7 @@ def generate_headers(headers_dir, instal
 def rebuild_addons(args):
   headers_dir = os.path.abspath(args.headers_dir)
   out_dir = os.path.abspath(args.out_dir)
-  node_bin = os.path.join(out_dir, 'node')
+  node_bin = os.path.join(out_dir, 'node21')
   if args.is_win:
     node_bin += '.exe'