diff --git a/gtkglext.spec b/gtkglext.spec
index fab1087..09d12ed 100644
--- a/gtkglext.spec
+++ b/gtkglext.spec
@@ -3,7 +3,7 @@
 Summary:	OpenGL Extension to GTK
 Name:		gtkglext
 Version:	1.2.0
-Release:	2%{?dist}
+Release:	3%{?dist}
 
 License:	LGPL
 Group:		System Environment/Libraries
@@ -14,6 +14,8 @@ BuildRoot:	%{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
 BuildRequires:	gtk2-devel
 BuildRequires:	libGLU-devel
 BuildRequires:	libGL-devel
+# Conditional build feature
+BuildRequires:	libXmu-devel
 # The configure script checks for X11/Intrinsic.h
 BuildRequires:	libXt-devel
 
@@ -33,6 +35,8 @@ Requires:	%{name} = %{version}
 Requires:	gtk2-devel
 Requires:	libGL-devel
 Requires:	libGLU-devel
+Requires:	libXmu-devel
+Requires:	pkgconfig
 
 %description devel
 The gtkglext-devel package contains the header files, static libraries,
@@ -77,6 +81,11 @@ rm -rf $RPM_BUILD_ROOT
 %doc %{_datadir}/gtk-doc/html/*
 
 %changelog
+* Mon Aug 14 2006 Ralf Corsépius <rc040203@freenet.de> - 1.2.0-3
+- BR: libXmu-devel (Braden McDaniel).
+- *-devel: R: libXmu-devel. 
+- *-devel: R: pkgconfig.
+
 * Tue Feb 14 2006 Ralf Corsépius <rc040203@freenet.de> - 1.2.0-2
 - Require: libGLU-devel (PR 181018)