fix: opt out of node-gyp on install via gypfile:false

package.json

@@ -8,6 +8,7 @@
   },
   "main": "out/src/index.js",
   "types": "out/src/index.d.ts",
+  "gypfile": false,
   "scripts": {
     "build:asan": "node-gyp configure build --jobs=max --address_sanitizer",
     "build:tsan": "node-gyp configure build --jobs=max --thread_sanitizer",

ts/test/test-no-build-scripts.ts

@@ -3,12 +3,23 @@ import * as fs from 'fs';
 import * as path from 'path';
 
 describe('package manifest', () => {
+  const manifest = path.join(__dirname, '..', '..', 'package.json');
+  const pkg = JSON.parse(fs.readFileSync(manifest, 'utf8'));
+
   it('declares no npm build lifecycle scripts (Yarn Berry YN0007)', () => {
-    const manifest = path.join(__dirname, '..', '..', 'package.json');
-    const pkg = JSON.parse(fs.readFileSync(manifest, 'utf8'));
     const scripts = pkg.scripts || {};
     const hooks = ['preinstall', 'install', 'postinstall'];
     const present = hooks.filter(name => scripts[name] !== undefined);
     assert.deepStrictEqual(present, []);
   });
+
+  it('opts out of node-gyp on install via gypfile:false (npm implicit rebuild)', () => {
+    // binding.gyp lives in the dev tree (excluded from the published tarball).
+    // Without gypfile:false, npm's publish-time normalization synthesizes
+    // "gypfile": true and "install": "node-gyp rebuild" into the registry
+    // manifest, so consumers run node-gyp rebuild against a missing
+    // binding.gyp and the install fails. Pinning gypfile:false suppresses
+    // that hook while keeping the manifest free of lifecycle scripts.
+    assert.strictEqual(pkg.gypfile, false);
+  });
 });