diff --git a/packages/emnapi/README.md b/packages/emnapi/README.md
index ee62119b..4349e2e3 100644
--- a/packages/emnapi/README.md
+++ b/packages/emnapi/README.md
@@ -628,9 +628,10 @@ Output code can run in recent version modern browsers and Node.js latest LTS. IE
 ### Using node-gyp (Experimental)
 
 Currently node-gyp works on Linux only and don't support static library linking in cross-compiling.
-There are opened PRs to try to make node-gyp work fine.
+There are related PRs to try to make node-gyp work fine.
 
 - https://github.com/nodejs/gyp-next/pull/222
+- https://github.com/nodejs/gyp-next/pull/240
 - https://github.com/nodejs/node-gyp/pull/2974
 
 If you experienced issues on Windows or macOS, please check the PRs for upstream changes detail and see
@@ -643,7 +644,7 @@ Arch: `node-gyp configure --arch=<wasm32 | wasm64>`
 ```ts
 // node-gyp configure -- -Dvariable_name=value
 
-declare var OS: 'emscripten' | 'wasi' | 'unknown' | ''
+declare var OS: 'emscripten' | 'wasi' | 'unknown' | 'wasm' | ''
 
 /**
  * Enable async work and threadsafe-functions
@@ -699,7 +700,7 @@ declare var emnapi_manual_linking: 0 | 1
         ["OS == 'wasi'", {
           # ...
         }],
-        ["OS == 'unknown' or OS == ''", {
+        ["OS in ' wasm unknown'", {
           # ...
         }]
       ]
@@ -750,19 +751,19 @@ call set CXX_target=%%WASI_SDK_PATH:\=/%%/bin/clang++.exe
 emmake node-gyp rebuild \
   --arch=wasm32 \
   --nodedir=./node_modules/emnapi \
-  -- -f make-linux -DOS=emscripten # -Dwasm_threads=1
+  -- -f make-emscripten # -Dwasm_threads=1
 
 # wasi
 node-gyp rebuild \
   --arch=wasm32 \
   --nodedir=./node_modules/emnapi \
-  -- -f make-linux -DOS=wasi # -Dwasm_threads=1
+  -- -f make-wasi # -Dwasm_threads=1
 
 # bare wasm32
 node-gyp rebuild \
   --arch=wasm32 \
   --nodedir=./node_modules/emnapi \
-  -- -f make-linux -DOS=unknown # -Dwasm_threads=1
+  -- -f make-wasm # -Dwasm_threads=1
 ```
 
 ```bat
@@ -770,15 +771,15 @@ node-gyp rebuild \
 @REM Run the bat file in POSIX-like environment (e.g. Cygwin)
 
 @REM emscripten
-call npx.cmd node-gyp configure --arch=wasm32 --nodedir=./node_modules/emnapi -- -f make-linux -DOS=emscripten
+call npx.cmd node-gyp configure --arch=wasm32 --nodedir=./node_modules/emnapi -- -f make-emscripten
 call emmake.bat make -C %~dp0build
 
 @REM wasi
-call npx.cmd node-gyp configure --arch=wasm32 --nodedir=./node_modules/emnapi -- -f make-linux -DOS=wasi
+call npx.cmd node-gyp configure --arch=wasm32 --nodedir=./node_modules/emnapi -- -f make-wasi
 make -C %~dp0build
 
 @REM bare wasm32
-call npx.cmd node-gyp configure --arch=wasm32 --nodedir=./node_modules/emnapi -- -f make-linux -DOS=unknown
+call npx.cmd node-gyp configure --arch=wasm32 --nodedir=./node_modules/emnapi -- -f make-wasm
 make -C %~dp0build
 ```
 
diff --git a/packages/emnapi/common.gypi b/packages/emnapi/common.gypi
index 26909569..058f9e43 100644
--- a/packages/emnapi/common.gypi
+++ b/packages/emnapi/common.gypi
@@ -2,7 +2,7 @@
 # in https://github.com/lovell/sharp/pull/3522
 {
   'variables': {
-    # OS: 'emscripten' | 'wasi' | 'unknown'
+    # OS: 'emscripten' | 'wasi' | 'unknown' | 'wasm'
     'clang': 1,
     'target_arch%': 'wasm32',
     'wasm_threads%': 0,
@@ -139,7 +139,7 @@
           }],
         ],
       }], 
-      ['OS in "wasi unknown "', {
+      ['OS in "wasi wasm unknown "', {
         'configurations': {
           'Release': {
             'ldflags': [ '-Wl,--strip-debug' ],
@@ -239,7 +239,7 @@
         'target_conditions': [
           ['_type=="executable"', {
             'conditions': [
-              ['OS in "wasi unknown "', {
+              ['OS in "wasi wasm unknown "', {
                 'product_extension': 'wasm',
 
                 'ldflags': [
@@ -326,7 +326,7 @@
                   }]
                 ],
               }],
-              ['OS in "wasi unknown "', {
+              ['OS in "wasi wasm unknown "', {
                 'product_extension': 'wasm',
 
                 'ldflags': [
diff --git a/packages/emnapi/emnapi.gyp b/packages/emnapi/emnapi.gyp
index edb81c1c..53089fed 100644
--- a/packages/emnapi/emnapi.gyp
+++ b/packages/emnapi/emnapi.gyp
@@ -63,7 +63,7 @@
         ]
       },
       'conditions': [
-        ['wasm_threads != 0 and OS in " unknown wasi"', {
+        ['wasm_threads != 0 and OS in " unknown wasm wasi"', {
           'sources': [
             'src/thread/async_worker_create.c',
             'src/thread/async_worker_init.S',