diff --git a/recipes/ffpyplayer/__init__.py b/recipes/ffpyplayer/__init__.py
index cee285d..ecfe9dd 100644
--- a/recipes/ffpyplayer/__init__.py
+++ b/recipes/ffpyplayer/__init__.py
@@ -16,19 +16,6 @@ class FFPyplayerRecipe(Recipe):
         "CoreMotion"]
     pbx_libraries = ["libiconv"]
 
-    def cythonize(self, filename):
-        if filename.startswith(self.build_dir):
-            filename = filename[len(self.build_dir) + 1:]
-        print("Cythonize {}".format(filename))
-        cmd = sh.Command(join(self.ctx.root_dir, "tools", "cythonize.py"))
-        shprint(cmd, filename)
-
-    def cythonize_build(self):
-        root_dir = self.build_dir
-        for root, dirnames, filenames in os.walk(root_dir):
-            for filename in fnmatch.filter(filenames, "*.pyx"):
-                self.cythonize(join(root, filename))
-
     def get_kivy_env(self, arch):
         build_env = arch.get_env()
         build_env["KIVYIOSROOT"] = self.ctx.root_dir
@@ -59,14 +46,6 @@ class FFPyplayerRecipe(Recipe):
                 _env=build_env)
         self.biglink()
 
-    def biglink(self):
-        dirs = []
-        for root, dirnames, filenames in os.walk(self.build_dir):
-            if fnmatch.filter(filenames, "*.so.libs"):
-                dirs.append(root)
-        cmd = sh.Command(join(self.ctx.root_dir, "tools", "biglink"))
-        shprint(cmd, join(self.build_dir, "libffpyplayer.a"), *dirs)
-
     def install(self):
         arch = list(self.filtered_archs)[0]
         build_dir = self.get_build_dir(arch.arch)
diff --git a/recipes/ios/__init__.py b/recipes/ios/__init__.py
index d7ae8b7..54ff9b8 100644
--- a/recipes/ios/__init__.py
+++ b/recipes/ios/__init__.py
@@ -13,19 +13,6 @@ class IosRecipe(Recipe):
     depends = ["python"]
     pbx_frameworks = ["MessageUI", "CoreMotion", "UIKit"]
 
-    def cythonize(self, filename):
-        if filename.startswith(self.build_dir):
-            filename = filename[len(self.build_dir) + 1:]
-        print("Cythonize {}".format(filename))
-        cmd = sh.Command(join(self.ctx.root_dir, "tools", "cythonize.py"))
-        shprint(cmd, filename)
-
-    def cythonize_build(self):
-        root_dir = self.build_dir
-        for root, dirnames, filenames in os.walk(root_dir):
-            for filename in fnmatch.filter(filenames, "*.pyx"):
-                self.cythonize(join(root, filename))
-
     def get_kivy_env(self, arch):
         build_env = arch.get_env()
         build_env["KIVYIOSROOT"] = self.ctx.root_dir
@@ -43,14 +30,6 @@ class IosRecipe(Recipe):
                 _env=build_env)
         self.biglink()
 
-    def biglink(self):
-        dirs = []
-        for root, dirnames, filenames in os.walk(self.build_dir):
-            if fnmatch.filter(filenames, "*.so.libs"):
-                dirs.append(root)
-        cmd = sh.Command(join(self.ctx.root_dir, "tools", "biglink"))
-        shprint(cmd, join(self.build_dir, "libios.a"), *dirs)
-
     def install(self):
         arch = list(self.filtered_archs)[0]
         build_dir = self.get_build_dir(arch.arch)
diff --git a/recipes/kivy/__init__.py b/recipes/kivy/__init__.py
index 88558f9..9f301a6 100644
--- a/recipes/kivy/__init__.py
+++ b/recipes/kivy/__init__.py
@@ -13,19 +13,6 @@ class KivyRecipe(Recipe):
     depends = ["python", "sdl2", "sdl2_image", "sdl2_mixer", "sdl2_ttf", "ios"]
     pbx_frameworks = ["OpenGLES", "Accelerate"]
 
-    def cythonize(self, filename):
-        if filename.startswith(self.build_dir):
-            filename = filename[len(self.build_dir) + 1:]
-        print("Cythonize {}".format(filename))
-        cmd = sh.Command(join(self.ctx.root_dir, "tools", "cythonize.py"))
-        shprint(cmd, filename)
-
-    def cythonize_build(self):
-        root_dir = join(self.build_dir, "kivy")
-        for root, dirnames, filenames in os.walk(root_dir):
-            for filename in fnmatch.filter(filenames, "*.pyx"):
-                self.cythonize(join(root, filename))
-
     def get_kivy_env(self, arch):
         build_env = arch.get_env()
         build_env["KIVYIOSROOT"] = self.ctx.root_dir
@@ -55,14 +42,6 @@ class KivyRecipe(Recipe):
                 _env=build_env)
         self.biglink()
 
-    def biglink(self):
-        dirs = []
-        for root, dirnames, filenames in os.walk(self.build_dir):
-            if fnmatch.filter(filenames, "*.so.libs"):
-                dirs.append(root)
-        cmd = sh.Command(join(self.ctx.root_dir, "tools", "biglink"))
-        shprint(cmd, join(self.build_dir, "libkivy.a"), *dirs)
-
     def _patch_setup(self):
         # patch setup to remove some functionnalities
         pyconfig = join(self.build_dir, "setup.py")
diff --git a/recipes/pyobjus/__init__.py b/recipes/pyobjus/__init__.py
index edd8708..ab3d8ca 100644
--- a/recipes/pyobjus/__init__.py
+++ b/recipes/pyobjus/__init__.py
@@ -12,19 +12,6 @@ class PyobjusRecipe(Recipe):
     library = "libpyobjus.a"
     depends = ["python"]
 
-    def cythonize(self, filename):
-        if filename.startswith(self.build_dir):
-            filename = filename[len(self.build_dir) + 1:]
-        print("Cythonize {}".format(filename))
-        cmd = sh.Command(join(self.ctx.root_dir, "tools", "cythonize.py"))
-        shprint(cmd, filename)
-
-    def cythonize_build(self):
-        root_dir = self.build_dir
-        for root, dirnames, filenames in os.walk(root_dir):
-            for filename in fnmatch.filter(filenames, "*.pyx"):
-                self.cythonize(join(root, filename))
-
     def get_kivy_env(self, arch):
         build_env = arch.get_env()
         build_env["KIVYIOSROOT"] = self.ctx.root_dir
@@ -54,14 +41,6 @@ class PyobjusRecipe(Recipe):
                 _env=build_env)
         self.biglink()
 
-    def biglink(self):
-        dirs = []
-        for root, dirnames, filenames in os.walk(self.build_dir):
-            if fnmatch.filter(filenames, "*.so.libs"):
-                dirs.append(root)
-        cmd = sh.Command(join(self.ctx.root_dir, "tools", "biglink"))
-        shprint(cmd, join(self.build_dir, "libpyobjus.a"), *dirs)
-
     def install(self):
         arch = list(self.filtered_archs)[0]
         build_dir = self.get_build_dir(arch.arch)
diff --git a/toolchain.py b/toolchain.py
index 94a7ba4..14d9c55 100755
--- a/toolchain.py
+++ b/toolchain.py
@@ -9,13 +9,14 @@ This tool intend to replace all the previous tools/ in shell script.
 import sys
 from sys import stdout
 from os.path import join, dirname, realpath, exists, isdir, basename
-from os import listdir, unlink, makedirs, environ, chdir, getcwd
+from os import listdir, unlink, makedirs, environ, chdir, getcwd, walk
 import zipfile
 import tarfile
 import importlib
 import io
 import json
 import shutil
+import fnmatch
 from datetime import datetime
 try:
     from urllib.request import FancyURLopener
@@ -505,6 +506,27 @@ class Recipe(object):
     def get_build_dir(self, arch):
         return join(self.ctx.build_dir, self.name, arch, self.archive_root)
 
+    def cythonize(self, filename):
+        if filename.startswith(self.build_dir):
+            filename = filename[len(self.build_dir) + 1:]
+        print("Cythonize {}".format(filename))
+        cmd = sh.Command(join(self.ctx.root_dir, "tools", "cythonize.py"))
+        shprint(cmd, filename)
+
+    def cythonize_build(self):
+        root_dir = self.build_dir
+        for root, dirnames, filenames in walk(root_dir):
+            for filename in fnmatch.filter(filenames, "*.pyx"):
+                self.cythonize(join(root, filename))
+
+    def biglink(self):
+        dirs = []
+        for root, dirnames, filenames in walk(self.build_dir):
+            if fnmatch.filter(filenames, "*.so.libs"):
+                dirs.append(root)
+        cmd = sh.Command(join(self.ctx.root_dir, "tools", "biglink"))
+        shprint(cmd, join(self.build_dir, "lib{}.a".format(self.name)), *dirs)
+
     # Public Recipe API to be subclassed if needed
 
     def init_with_ctx(self, ctx):