diff --git a/redhat/tdeartwork/tdeartwork-14.0.0.spec b/redhat/tdeartwork/tdeartwork-14.0.0.spec
index d96fbc4..c870618 100644
--- a/redhat/tdeartwork/tdeartwork-14.0.0.spec
+++ b/redhat/tdeartwork/tdeartwork-14.0.0.spec
@@ -73,7 +73,18 @@
# ESOUND support
BuildRequires: esound-devel
-# OpenGL support
+# MESA support
+%if 0%{?rhel} || 0%{?fedora}
+BuildRequires: mesa-libGL-devel
+BuildRequires: mesa-libGLU-devel
+%endif
+%if 0%{?mdkversion} || 0%{?mgaversion}
+BuildRequires: mesaglu-devel
+%endif
+%if 0%{?suse_version}
+BuildRequires: Mesa-libGL-devel
+BuildRequires: Mesa-libGLU-devel
+%endif
%if 0%{?rhel} == 4
BuildRequires: xorg-x11-Mesa-libGLU
%endif
@@ -83,7 +94,8 @@
BuildRequires: libart_lgpl-devel
# XSCREENSAVER support
-%if 0%{?fedora} >= 15 || 0%{?mgaversion} || 0%{?mdkversion} || 0%{?rhel} >= 6 || 0%{?suse_version} || 0%{?with_xscreensaver}
+# Disabled on RHEL4, RHEL < 7
+%if 0%{?fedora} >= 15 || 0%{?mgaversion} || 0%{?mdkversion} || 0%{?rhel} >= 7 || 0%{?suse_version} || 0%{?with_xscreensaver}
%if 0%{?rhel} == 0 || 0%{?rhel} <= 6 || 0%{?with_xscreensaver}
%define with_xscreensaver 1
@@ -764,6 +776,9 @@
%__rm -f %{?buildroot}%{tde_datadir}/icons/locolor/16x16/apps/kbabel.png
%__rm -f %{?buildroot}%{tde_datadir}/icons/locolor/32x32/apps/kbabel.png
+# Links duplicate files
+%fdupes "%{?buildroot}%{tde_datadir}"
+
%clean
%__rm -rf %{buildroot}
|