android/build.py: add option "autogen"

android/build.py

@@ -183,12 +183,20 @@ class Project:
         return path
 
 class AutotoolsProject(Project):
-    def __init__(self, url, md5, installed, configure_args=[], **kwargs):
+    def __init__(self, url, md5, installed, configure_args=[],
+                 autogen=False, **kwargs):
         Project.__init__(self, url, md5, installed, **kwargs)
         self.configure_args = configure_args
+        self.autogen = autogen
 
     def build(self):
         src = self.unpack()
+        if self.autogen:
+            subprocess.check_call(['/usr/bin/aclocal'], cwd=src)
+            subprocess.check_call(['/usr/bin/automake', '--add-missing', '--force-missing', '--foreign'], cwd=src)
+            subprocess.check_call(['/usr/bin/autoconf'], cwd=src)
+            subprocess.check_call(['/usr/bin/libtoolize', '--force'], cwd=src)
+
         build = self.make_build_path()
 
         select_toolchain(use_cxx=self.use_cxx, use_clang=self.use_clang)