[gnome-todo] build: simplify makefile

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

commit 47779f81dde5c785cc3173f4fb73453704db7e5b
Author: Georges Basile Stavracas Neto <georges stavracas gmail com>
Date:   Tue Nov 1 00:09:05 2016 -0200

    build: simplify makefile

 src/Makefile.am |   69 +------------------------------------------------------
 1 files changed, 1 insertions(+), 68 deletions(-)
---
diff --git a/src/Makefile.am b/src/Makefile.am
index 4f08856..b39ba08 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -171,74 +171,7 @@ if ENABLE_GTK_DOC
 
 noinst_LTLIBRARIES = libgtd.la
 
-libgtd_la_SOURCES = \
-       engine/gtd-manager.c \
-       engine/gtd-manager.h \
-       engine/gtd-manager-protected.h \
-       engine/gtd-plugin-manager.c \
-       engine/gtd-plugin-manager.h \
-       interfaces/gtd-activatable.c \
-       interfaces/gtd-activatable.h \
-       interfaces/gtd-panel.c \
-       interfaces/gtd-panel.h \
-       interfaces/gtd-provider.c \
-       interfaces/gtd-provider.h \
-       notification/gtd-notification.c \
-       notification/gtd-notification.h \
-       notification/gtd-notification-widget.c \
-       notification/gtd-notification-widget.h \
-       provider/gtd-provider-popover.c \
-       provider/gtd-provider-popover.h \
-       provider/gtd-provider-row.c \
-       provider/gtd-provider-row.h \
-       provider/gtd-provider-selector.c \
-       provider/gtd-provider-selector.h \
-       views/gtd-list-selector.c \
-       views/gtd-list-selector.h \
-       views/gtd-list-selector-grid.c \
-       views/gtd-list-selector-grid.h \
-       views/gtd-list-selector-grid-item.c \
-       views/gtd-list-selector-grid-item.h \
-       views/gtd-list-selector-item.c \
-       views/gtd-list-selector-item.h \
-       views/gtd-list-selector-list.c \
-       views/gtd-list-selector-list.h \
-       views/gtd-list-selector-list-item.c \
-       views/gtd-list-selector-list-item.h \
-       views/gtd-list-selector-panel.c \
-       views/gtd-list-selector-panel.h \
-       gtd-application.c \
-       gtd-application.h \
-       gtd-arrow-frame.c \
-       gtd-arrow-frame.h \
-       gtd-dnd-row.c \
-       gtd-dnd-row.h \
-       gtd-edit-pane.c \
-       gtd-edit-pane.h \
-       gtd-empty-list-widget.c \
-       gtd-empty-list-widget.h \
-       gtd-enum-types.c \
-       gtd-enum-types.h \
-       gtd-enums.h \
-       gtd-initial-setup-window.c \
-       gtd-initial-setup-window.h \
-       gtd-object.c \
-       gtd-object.h \
-       gtd-plugin-dialog.c \
-       gtd-plugin-dialog.h \
-       gtd-plugin-dialog-row.c \
-       gtd-plugin-dialog-row.h \
-       gtd-task.c \
-       gtd-task.h \
-       gtd-task-list.c \
-       gtd-task-list.h \
-       gtd-task-list-view.c \
-       gtd-task-list-view.h \
-       gtd-task-row.c \
-       gtd-task-row.h \
-       gtd-types.h \
-       gtd-window.c \
-       gtd-window.h
+libgtd_la_SOURCES = $(gnome_todo_SOURCES)
 
 libgtd_la_CFLAGS = \
        $(GNOME_TODO_CFLAGS) \