[mate-power-manager] add mate-power-manager_set-DISABLE_DEPRECATED-to-an-empty-string.patch to spec file

[Wolfgang Ulbrich]

commit 934674e32a56be024fc9ccca346633f2cb2284ac
Author: raveit65 <chat-to-me at raveit.de>
Date:   Fri Dec 20 17:36:32 2013 +0100

    add mate-power-manager_set-DISABLE_DEPRECATED-to-an-empty-string.patch to spec file

 mate-power-manager.spec |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/mate-power-manager.spec b/mate-power-manager.spec
index 93a3c96..2cccb1f 100644
--- a/mate-power-manager.spec
+++ b/mate-power-manager.spec
@@ -35,6 +35,9 @@ Patch5:        mate-power-manager_upower-use-g_signal-notify.patch
 Patch6:        mate-power-manager_upower-update-for-libupower-glib-API-changes.patch
 Patch7:        mate-power-manager_fix-use-g_signal-notify.patch
 %endif
+# fix build issue
+# https://github.com/infirit/mate-power-manager/commit/b5d8ad0
+Patch8:        mate-power-manager_set-DISABLE_DEPRECATED-to-an-empty-string.patch
 
 BuildRequires: cairo-devel
 BuildRequires: dbus-glib-devel
@@ -83,6 +86,7 @@ displaying icons and handling user callbacks in an interactive MATE session.
 %patch6 -p1 -b .glib-API-changes
 %patch7 -p1 -b .fix-use-g_signal-notify
 %endif
+%patch8 -p1 -b .empty-string
 
 # nedded to create missing configure and make files
 #NOCONFIGURE=1 ./autogen.sh