[dia] Fix 'make distcheck' after Sozi integration

[Hans Breuer <hans src gnome org>]

commit f9b485359994695f9b8e143af2d1002f2c661431
Author: Hans Breuer <hans breuer org>
Date:   Sat Jan 24 20:57:36 2015 +0100

    Fix 'make distcheck' after Sozi integration
    
    by adding some more file to SOURCES and EXTRA_DIST.

 objects/Sozi/Makefile.am |    8 ++++++--
 1 files changed, 6 insertions(+), 2 deletions(-)
---
diff --git a/objects/Sozi/Makefile.am b/objects/Sozi/Makefile.am
index 27e21b2..4a2a343 100644
--- a/objects/Sozi/Makefile.am
+++ b/objects/Sozi/Makefile.am
@@ -4,8 +4,10 @@ pkglib_LTLIBRARIES =   libsozi_objects.la
 libsozi_objects_la_SOURCES = \
                        sozi.c \
                        sozi-object.c \
+                       sozi-object.h \
                        sozi-frame.c \
-                       sozi-media.c
+                       sozi-media.c \
+                       sozi-player.h
 
 if WITH_SOZI_PATH
 libsozi_objects_la_CFLAGS = -DSOZI_PATH="\"$(SOZI_PATH)\""
@@ -19,7 +21,9 @@ AM_CPPFLAGS = -I$(top_srcdir)/intl -I$(srcdir)/../../lib \
        $(DEBUG_FLAGS) $(GTK_CFLAGS)
 
 EXTRA_DIST = \
-       pixmaps/sozi-frame.xpm
+       pixmaps/sozi-frame.xpm \
+       pixmaps/sozi-media.xpm \
+       readme.txt