diff --git a/project/extras.mk b/project/extras.mk
index 6b69bf7..93d1edc 100644
--- a/project/extras.mk
+++ b/project/extras.mk
@@ -1,3 +1,4 @@
+# build info
 PYTHON_VER     = 2.7
 
 CFLAGS_COMMON += -I$(SOURCE_DIR)/Include
@@ -7,3 +8,66 @@ CFLAGS_CONFIG += -DPREFIX=\"$(PREFIX)\"
 CFLAGS_CONFIG += -DEXEC_PREFIX=\"$(EXEC_PREFIX)\"
 CFLAGS_CONFIG += -DVPATH=\"$(SOURCE_DIR)\"
 CFLAGS_CONFIG += -DPYTHONPATH=\"$(PYTHON_PATH)\"
+
+
+# dynamically loaded extension module
+pyext/%$(OS_LIB_SUFFIX): LDFLAGS_IMPLIB =
+pyext/%$(OS_LIB_SUFFIX): LDFLAGS_SONAME =
+pyext/%$(OS_LIB_SUFFIX): LDFLAGS_DSOEXT = -Wl,-soname -Wl,$(subst pyext/,,$@)
+pyext/%$(OS_LIB_SUFFIX): LDFLAGS_DYNEXT = $(LDFLAGS_DSOEXT) $(LDFLAGS_PYEXT)
+
+pyext/%$(OS_LIB_SUFFIX):
+	$(CC) -shared -o $@ $^ $(LDFLAGS_SHARED) $(LDFLAGS_DYNEXT) -l$(PACKAGE)
+
+
+# statically linked extension
+pyext/%$(OS_ARCHIVE_EXT):
+	rm -f $@
+	$(AR) rcs $@ $^
+
+
+# compile rules for python's extension modules
+Modules/cjkcodecs/%.lo:		$(SOURCE_DIR)/Modules/cjkcodecs/%.c $(ALL_HEADERS) host.tag tree.tag config.tag
+				$(CC) -c -o $@ $< $(CFLAGS_SHARED)
+
+Modules/cjkcodecs/%.o:		$(SOURCE_DIR)/Modules/cjkcodecs/%.c $(ALL_HEADERS) host.tag tree.tag config.tag
+				$(CC) -c -o $@ $< $(CFLAGS_STATIC)
+
+Modules/expat/%.lo:		$(SOURCE_DIR)/Modules/expat/%.c $(ALL_HEADERS) host.tag tree.tag config.tag
+				$(CC) -c -o $@ $< $(CFLAGS_SHARED)
+
+Modules/expat/%.o:		$(SOURCE_DIR)/Modules/expat/%.c $(ALL_HEADERS) host.tag tree.tag config.tag
+				$(CC) -c -o $@ $< $(CFLAGS_STATIC)
+
+Modules/zlib/%.lo:		$(SOURCE_DIR)/Modules/zlib/%.c $(ALL_HEADERS) host.tag tree.tag config.tag
+				$(CC) -c -o $@ $< $(CFLAGS_SHARED)
+
+Modules/zlib/%.o:		$(SOURCE_DIR)/Modules/zlib/%.c $(ALL_HEADERS) host.tag tree.tag config.tag
+				$(CC) -c -o $@ $< $(CFLAGS_STATIC)
+
+Modules/_ctypes/%.lo:		$(SOURCE_DIR)/Modules/_ctypes/%.c $(ALL_HEADERS) host.tag tree.tag config.tag
+				$(CC) -c -o $@ $< $(CFLAGS_SHARED)
+
+Modules/_ctypes/%.o:		$(SOURCE_DIR)/Modules/_ctypes/%.c $(ALL_HEADERS) host.tag tree.tag config.tag
+				$(CC) -c -o $@ $< $(CFLAGS_STATIC)
+
+Modules/_io/%.lo:		$(SOURCE_DIR)/Modules/_io/%.c $(ALL_HEADERS) host.tag tree.tag config.tag
+				$(CC) -c -o $@ $< $(CFLAGS_SHARED)
+
+Modules/_io/%.o:		$(SOURCE_DIR)/Modules/_io/%.c $(ALL_HEADERS) host.tag tree.tag config.tag
+				$(CC) -c -o $@ $< $(CFLAGS_STATIC)
+
+Modules/_multiprocessing/%.lo:	$(SOURCE_DIR)/Modules/_multiprocessing/%.c $(ALL_HEADERS) host.tag tree.tag config.tag
+				$(CC) -c -o $@ $< $(CFLAGS_SHARED)
+
+Modules/_multiprocessing/%.o:	$(SOURCE_DIR)/Modules/_multiprocessing/%.c $(ALL_HEADERS) host.tag tree.tag config.tag
+				$(CC) -c -o $@ $< $(CFLAGS_STATIC)
+
+Modules/_sqlite/%.lo:		$(SOURCE_DIR)/Modules/_sqlite/%.c $(ALL_HEADERS) host.tag tree.tag config.tag
+				$(CC) -c -o $@ $< $(CFLAGS_SHARED)
+
+Modules/_sqlite/%.o:		$(SOURCE_DIR)/Modules/_sqlite/%.c $(ALL_HEADERS) host.tag tree.tag config.tag
+				$(CC) -c -o $@ $< $(CFLAGS_STATIC)
+
+# build rules for python's extension modules
+include $(PROJECT_DIR)/project/pyexts.mk
diff --git a/project/pyexts.mk b/project/pyexts.mk
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/project/pyexts.mk
diff --git a/project/tree.mk b/project/tree.mk
index dcdc150..4af315d 100644
--- a/project/tree.mk
+++ b/project/tree.mk
@@ -1,5 +1,12 @@
 tree.tag:
+		mkdir -p pyext
 		mkdir -p Modules
+		mkdir -p Modules/cjkcodecs
+		mkdir -p Modules/zlib
+		mkdir -p Modules/_ctypes
+		mkdir -p Modules/_io
+		mkdir -p Modules/_multiprocessing
+		mkdir -p Modules/_sqlite
 		mkdir -p Objects
 		mkdir -p Parser
 		mkdir -p Python