Modify the stdlib to get distutils working

There are two tricky things left that I don't think we can support soon:
- MultipartConversionError uses multiple inheritance
- structseq.c sets a tp_dealloc

The structseq_dealloc function is a "simple" destructer (functionality is
covered by our GC), so we can just comment it out.  Ideally we'd have some
way of automatically determining that it's a no-op so that we don't have
to run it.

Makefile

@@ -990,6 +990,10 @@ $(FROM_CPYTHON_SRCS:.c=.o): %.o: %.c $(BUILD_SYSTEM_DEPS)
 	$(ECHO) Compiling C file to $@
 	$(VERB) $(CC) $(EXT_CFLAGS) -c $< -o $@ -g -MMD -MP -MF $(patsubst %.o,%.d,$@) -O0
 
+$(FROM_CPYTHON_SRCS:.c=.o.ll): %.o.ll: %.c $(BUILD_SYSTEM_DEPS)
+	$(ECHO) Compiling C file to $@
+	$(VERB) $(CLANG_EXE) $(EXT_CFLAGS) -S -emit-llvm -c $< -o $@ -g -MMD -MP -MF $(patsubst %.o,%.d,$@) -O3 -g0
+
 $(FROM_CPYTHON_SRCS:.c=.release.o): %.release.o: %.c $(BUILD_SYSTEM_DEPS)
 	$(ECHO) Compiling C file to $@
 	$(VERB) $(CC) $(EXT_CFLAGS) -c $< -o $@ -g -MMD -MP -MF $(patsubst %.o,%.d,$@)

lib_python/2.7/email/errors.py

@@ -22,8 +22,11 @@ class BoundaryError(MessageParseError):
     """Couldn't find terminating boundary."""
 
 
-class MultipartConversionError(MessageError, TypeError):
-    """Conversion to a multipart is prohibited."""
+# Pyston change: we don't support multiple inheritance yet, so this error class is tricky.
+# We could make it so that it only inherits one of the base classes, but I'd rather that
+# anyone who tries to use this error gets a loud error message rather than different behavior.
+# class MultipartConversionError(MessageError, TypeError):
+    # """Conversion to a multipart is prohibited."""
 
 
 class CharsetError(MessageError):

lib_python/2.7_Objects/structseq.c

@@ -41,6 +41,9 @@ PyStructSequence_New(PyTypeObject *type)
     return (PyObject*) obj;
 }
 
+// Pyston change: we currently don't support finalizers, and this one is just a
+// no-op (only decrefs and a final free), so we can just skip it.
+#if 0
 static void
 structseq_dealloc(PyStructSequence *obj)
 {
@@ -52,6 +55,7 @@ structseq_dealloc(PyStructSequence *obj)
     }
     PyObject_Del(obj);
 }
+#endif
 
 static Py_ssize_t
 structseq_length(PyStructSequence *obj)
@@ -443,7 +447,8 @@ static PyTypeObject _struct_sequence_template = {
     NULL,                                       /* tp_name */
     0,                                          /* tp_basicsize */
     0,                                          /* tp_itemsize */
-    (destructor)structseq_dealloc,              /* tp_dealloc */
+    // Pyston change: nulled this out:
+    0,                                          /* tp_dealloc */
     0,                                          /* tp_print */
     0,                                          /* tp_getattr */
     0,                                          /* tp_setattr */