diff --git a/project/extras.mk b/project/extras.mk
index 99fa4f6..5cda9e8 100644
--- a/project/extras.mk
+++ b/project/extras.mk
@@ -12,6 +12,12 @@ CFLAGS_CONFIG += -DEXEC_PREFIX=\"$(EXEC_PREFIX)\"
 CFLAGS_CONFIG += -DVPATH=\"$(SOURCE_DIR)\"
 CFLAGS_CONFIG += -DPYTHONPATH=\"$(PYTHON_PATH)\"
 
+LDFLAGS_DEPS    += -Wl,--as-needed
+LDFLAGS_DEPS    += -lm -lpthread -lutil -ldl -lcrypt
+LDFLAGS_DEPS    += -Wl,--no-as-needed
+
+LDFLAGS_CONFIG  += $(LDFLAGS_DEPS)
+
 ifeq ($(ALL_STATIC),yes)
 	CFLAGS_STATIC	+= -DPY_ALL_STATIC
 
@@ -36,7 +42,8 @@ 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): $(DSO_REF_SOLINK)
-	$(CC) -shared -o $@ $^ $(LDFLAGS_SHARED) $(LDFLAGS_DYNEXT) -l$(PACKAGE)
+	$(CC) -shared -o $@ $^ $(LDFLAGS_SHARED) $(LDFLAGS_DYNEXT) \
+		-l$(PACKAGE) $(LDFLAGS_DEPS)
 
 
 # statically linked extension