propagate build options

Cython/Build/Dependencies.py

@@ -10,6 +10,7 @@ except NameError:
 from distutils.extension import Extension
 
 from Cython import Utils
+from Cython.Compiler.Main import Context, CompilationOptions, default_options
 
 # Unfortunately, Python 2.3 doesn't support decorators.
 def cached_method(f):
@@ -377,12 +378,11 @@ def create_dependency_tree(ctx=None):
     global _dep_tree
     if _dep_tree is None:
         if ctx is None:
-            from Cython.Compiler.Main import Context, CompilationOptions
             ctx = Context(["."], CompilationOptions(default_options))
         _dep_tree = DependencyTree(ctx)
     return _dep_tree
 
-# TODO: This may be useful for advanced users.
+# This may be useful for advanced users?
 def create_extension_list(patterns, ctx=None, aliases=None):
     seen = set()
     deps = create_dependency_tree(ctx)
@@ -423,7 +423,10 @@ def create_extension_list(patterns, ctx=None, aliases=None):
     return module_list
 
 # This is the user-exposed entry point.
-def cythonize(module_list, ctx=None, nthreads=0, aliases=None):
+def cythonize(module_list, nthreads=0, aliases=None, **options):    
+    c_options = CompilationOptions(options)
+    cpp_options = CompilationOptions(options); cpp_options.cplus = True
+    ctx = options.create_context()
     module_list = create_extension_list(module_list, ctx=ctx, aliases=aliases)
     deps = create_dependency_tree(ctx)
     to_compile = []
@@ -434,8 +437,10 @@ def cythonize(module_list, ctx=None, nthreads=0, aliases=None):
             if ext in ('.pyx', '.py'):
                 if m.language == 'c++':
                     c_file = base + '.cpp'
+                    options = cpp_options
                 else:
                     c_file = base + '.c'
+                    options = c_options
                 if os.path.exists(c_file):
                     c_timestamp = os.path.getmtime(c_file)
                 else:
@@ -450,7 +455,7 @@ def cythonize(module_list, ctx=None, nthreads=0, aliases=None):
                     priority = 2 - (dep in deps.immediate_dependencies(source))
                 if c_timestamp < dep_timestamp:
                     print("Compiling %s because it depends on %s" % (source, dep))
-                    to_compile.append((priority, source, c_file))
+                    to_compile.append((priority, source, c_file, options))
                 new_sources.append(c_file)
             else:
                 new_sources.append(source)
@@ -466,13 +471,13 @@ def cythonize(module_list, ctx=None, nthreads=0, aliases=None):
             print("multiprocessing required for parallel cythonization")
             nthreads = 0
     if not nthreads:
-        for priority, pyx_file, c_file in to_compile:
-            cythonize_one(pyx_file, c_file)
+        for priority, pyx_file, c_file, options in to_compile:
+            cythonize_one(pyx_file, c_file, options)
     return module_list
 
 # TODO: Share context? Issue: pyx processing leaks into pxd module
 def cythonize_one(pyx_file, c_file, options=None):
-    from Cython.Compiler.Main import compile, CompilationOptions, default_options
+    from Cython.Compiler.Main import compile, default_options
     from Cython.Compiler.Errors import CompileError, PyrexError
 
     if options is None:

Cython/Compiler/Main.py

@@ -564,8 +564,7 @@ def create_default_resultobj(compilation_source, options):
 
 def run_pipeline(source, options, full_module_name = None):
     # Set up context
-    context = Context(options.include_path, options.compiler_directives,
-                      options.cplus, options.language_level)
+    context = optons.create_context()
 
     # Set up source object
     cwd = os.getcwd()
@@ -636,6 +635,10 @@ class CompilationOptions(object):
         self.__dict__.update(defaults)
         self.__dict__.update(kw)
 
+    def create_context(self):
+        return Context(self.include_path, self.compiler_directives,
+                      self.cplus, self.language_level)
+
 
 class CompilationResult(object):
     """