[gnome-themes-standard] Add libtool BR

[Cosimo Cecchi]

commit 012f828a8557b933d3490c3eced1b043a45086b0
Author: Cosimo Cecchi <cosimoc at gnome.org>
Date:   Mon Feb 11 13:56:20 2013 -0500

    Add libtool BR

 gnome-themes-standard.spec |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gnome-themes-standard.spec b/gnome-themes-standard.spec
index 7c4d36d..0f699bc 100644
--- a/gnome-themes-standard.spec
+++ b/gnome-themes-standard.spec
@@ -20,7 +20,7 @@ Provides: gnome-background-standard = %{version}-%{release}
 
 BuildRequires: gtk3-devel >= 3.0.2
 BuildRequires: librsvg2-devel
-BuildRequires: intltool gettext autoconf automake
+BuildRequires: intltool gettext autoconf automake libtool
 BuildRequires: gtk2-devel
 # for gtk-update-icon-cache
 BuildRequires: gtk2