[BUILD] Fixing lingering errors in CI build

- Some tests are spewing -Wno-format errors that should be suppressed
- To address, added $(LIBS) to .o -> .c rule in tests/Makefile
- Cython is complaining about not being able to import log levels
- To address, renamed runtime.pxd -> studentapi.pxd

executor/Makefile

@@ -26,7 +26,7 @@ $(BIN)/$(TARGET): $(OBJS) | $(BIN)
 	$(CC) $(OBJS) -o $@ $(LIBS) $(PY_LIB)
 
 # rule to compile studentapi.c
-studentapi.c: studentapi.pyx runtime.pxd setup.py
+studentapi.c: studentapi.pyx studentapi.pxd setup.py
 	$(PY_VER) setup.py build_ext -i
 
 # rule to compile testapi

executor/studentapi.pyx

@@ -1,7 +1,7 @@
 # cython: nonecheck=True
 
 # from libc.stdint cimport *
-from runtime cimport *
+from studentapi cimport *
 from cpython.mem cimport PyMem_Malloc, PyMem_Free
 from libc.string cimport strcmp
 

tests/Makefile

@@ -162,7 +162,7 @@ $(TEST_EXE): $$(patsubst $(BIN)/%,$(OBJ)/$(THIS_DIR)/%.o,$$@) $(TEST_OBJS) $(PBC
 # [gcc][-MMD -MP ...][-I../runtime_util -I../net_handler/pbc_gen .....] -c [client/net_handler_client.c]
 #            -o [../build/obj/tests/client/net_handler_client.o]
 $(OBJ)/$(THIS_DIR)/%.o: %.c | $(BUILD_DIR)
-	$(CC) $(CFLAGS) $(INCLUDE) -c $< -o $@
+	$(CC) $(CFLAGS) $(INCLUDE) -c $< -o $@ $(LIBS)
 
 ################################ general rule for making a build or bin directory