fix: universal2 dispatcher arch flags + WASM skip guards

Author: 1minds3t

build_hooks.py

@@ -34,6 +34,10 @@
 
 
 def _run_post_install():
+    # ADD THIS CHECK AT THE TOP
+    if sys.platform in ('emscripten', 'wasm32'):
+        print(" [build_hooks] WASM environment detected, skipping C dispatcher build.")
+        return
     marker = Path(sys.executable).parent / ".omnipkg_dispatch_compiled"
     if marker.exists():
         marker.unlink()

pyproject.toml

@@ -39,9 +39,9 @@ classifiers = [
 ]
 
 dependencies = [
-    "uv_ffi>=0.10.8.post7 ; python_version >= '3.8' and python_version <= '3.14'",
+    "uv_ffi>=0.10.8.post7 ; python_version >= '3.8' and python_version <= '3.14' and platform_system != 'Emscripten'",
     "requests>=2.20",
-    "psutil>=5.9.0",
+    "psutil>=5.9.0 ; platform_system != 'Emscripten'",
     "typer>=0.4.0",
     "rich>=10.0.0",
 
@@ -92,10 +92,11 @@ dependencies = [
     # cryptography - version split by Python
     # Python 3.7: stuck at 45.0.7 (upstream dropped 3.7 before 46.x)
     # CVEs unresolved: CVE-2026-26007 (HIGH), CVE-2026-34073 (LOW), CVE-2026-39892 (MODERATE)
-    # TODO: cryptography-lts needed for py37 to backport fixes landing in 46.0.5–46.0.7
-    "cryptography>=45.0.7,<46.0; python_version == '3.7'",  # UNSAFE: 3 open CVEs, best available
-    "cryptography>=46.0.7; python_version >= '3.8'",         # fully patched
-    
+    # TODO: cryptography-lts needed for py37 to backport fixes landing in 46.0.5–46.0.7     
+    "cryptography>=46.0.7 ; python_version >= '3.8' and platform_system != 'Emscripten'", # fully patched
+    "cryptography>=45.0.7,<46.0 ; python_version == '3.7' and platform_system != 'Emscripten'", # UNSAFE: 3 open CVEs, best available
+    "cryptography-wasm>=42.0.2 ; platform_system == 'Emscripten'",
+
     # Security scanning
     # safety moved to optional 'audit' extra due to CVE-2025-14009 in nltk dependency
     # pip-audit is now the primary default scanner for all versions

setup.py

@@ -16,8 +16,14 @@
 import sys
 import subprocess
 import shutil
+import platform
 from pathlib import Path
 
+# Automatically detect WASM environment and skip all C compilation
+IS_WASM = sys.platform in ('emscripten', 'wasm32')
+if IS_WASM:
+    os.environ['OMNIPKG_SKIP_C_EXT'] = '1'
+    
 SKIP_C_EXTENSIONS = os.environ.get('OMNIPKG_SKIP_C_EXT', '0') == '1'
 
 # ── Dispatcher binary install (shared by both install and develop commands) ──
@@ -43,21 +49,22 @@ def _install_dispatcher_binary(install_dir=None):
         install_dir = Path(sys.executable).parent  # $VENV/bin
 
     binary_out = Path(install_dir) / "_omnipkg_dispatch_bin"
-    
-    # 1. FIX: Create the wheel's scripts directory so GCC doesn't crash
     binary_out.parent.mkdir(parents=True, exist_ok=True)
 
+    cmd = ["gcc", "-O2"]
+    if sys.platform == "darwin":
+        archflags = os.environ.get("ARCHFLAGS", "")
+        if archflags:
+            cmd.extend(archflags.split())
+        elif platform.machine() == "arm64":
+            cmd.extend(["-arch", "x86_64", "-arch", "arm64"])
+    cmd.extend(["-o", str(binary_out), str(c_source)])
+
     try:
-        result = subprocess.run(
-            ["gcc", "-O2", "-o", str(binary_out), str(c_source)],
-            capture_output=True, text=True
-        )
+        result = subprocess.run(cmd, capture_output=True, text=True)
         if result.returncode != 0:
             print(f"  [dispatcher] Compilation failed, using Python dispatcher:")
-            subprocess.run(["gcc", "-v", "-O2", "-o", str(binary_out), str(c_source)],
-                capture_output=False,
-                text=True
-            )
+            subprocess.run(cmd + ["-v"], capture_output=False, text=True)
             return
 
         import time