Allow distutils directives in test files.

Cython/Build/Dependencies.py

@@ -148,6 +148,10 @@ distutils_settings = {
 
 @cython.locals(start=long, end=long)
 def line_iter(source):
+    if isinstance(source, file):
+        for line in source:
+            yield line
+    else:
         start = 0
         while True:
             end = source.find('\n', start)
@@ -225,6 +229,14 @@ class DistutilsInfo(object):
             resolved.values[key] = value
         return resolved
 
+    def apply(self, extension):
+        for key, value in self.values.items():
+            type = distutils_settings[key]
+            if type in [list, transitive_list]:
+                getattr(extension, key).extend(value)
+            else:
+                setattr(extension, key, value)
+
 @cython.locals(start=long, q=long, single_q=long, double_q=long, hash_mark=long,
                end=long, k=long, counter=long, quote_len=long)
 def strip_string_literals(code, prefix='__Pyx_L'):

runtests.py

@@ -75,6 +75,7 @@ from distutils.command.build_ext import build_ext as _build_ext
 from distutils import sysconfig
 distutils_distro = Distribution()
 
+
 if sys.platform == 'win32':
     # TODO: Figure out why this hackery (see http://thread.gmane.org/gmane.comp.python.cython.devel/8280/).
     config_files = distutils_distro.find_config_files()
@@ -204,7 +205,7 @@ EXCLUDE_EXT = object()
 EXT_EXTRAS = {
     'tag:numpy' : update_numpy_extension,
     'tag:openmp': update_openmp_extension,
-    'tag:trace':  update_linetrace_extension,
+    'tag:trace' : update_linetrace_extension,
 }
 
 
@@ -334,7 +335,7 @@ def parse_tags(filepath):
                 if tag == 'tags':
                     tag = 'tag'
                     print("WARNING: test tags use the 'tag' directive, not 'tags' (%s)" % filepath)
-                if tag not in ('mode', 'tag', 'ticket', 'cython'):
+                if tag not in ('mode', 'tag', 'ticket', 'cython', 'distutils'):
                     print("WARNING: unknown test directive '%s' found (%s)" % (tag, filepath))
                 values = values.split(',')
                 tags[tag].extend(filter(None, [value.strip() for value in values]))
@@ -772,6 +773,11 @@ class CythonCompileTestCase(unittest.TestCase):
                 # Set the language now as the fixer might need it
                 extension.language = 'c++'
 
+            if 'distutils' in self.tags:
+                from Cython.Build.Dependencies import DistutilsInfo
+                pyx_path = os.path.join(self.test_directory, self.module + ".pyx")
+                DistutilsInfo(open(pyx_path)).apply(extension)
+
             for matcher, fixer in list(EXT_EXTRAS.items()):
                 if isinstance(matcher, str):
                     # lazy init