restore libobrender compatibility (#1231693)

openbox-abifix.patch

@@ -0,0 +1,12 @@
+diff -up openbox-3.6/obrender/theme.h.abifix openbox-3.6/obrender/theme.h
+--- openbox-3.6/obrender/theme.h.abifix	2015-01-12 20:48:27.000000000 +0100
++++ openbox-3.6/obrender/theme.h	2015-06-25 17:28:43.401411179 +0200
+@@ -114,6 +114,8 @@ struct _RrTheme {
+     RrColor *osd_pressed_lineart;
+     RrColor *osd_focused_lineart;
+     RrColor *menu_title_shadow_color;
++    /* padding to make libobrender compatible with openbox-3.5.2 */
++    void *_pad[8];
+     RrColor *menu_text_shadow_color;
+ 
+     /* style settings - pics */

openbox.spec

@@ -12,6 +12,9 @@ Source2:	xdg-menu
 Source3:	menu.xml
 Source4:	terminals.menu
 
+# restore libobrender compatibility, remove when soname is bumped!
+Patch1:		openbox-abifix.patch
+
 Requires:	%{name}-libs%{?_isa} = %{version}-%{release}
 
 # required by xdg-menu and xdg-autostart scripts
@@ -92,6 +95,7 @@ KDE session.
 
 %prep
 %setup -q
+%patch1 -p1 -b .abifix
 
 
 %build