diff --git a/blt.spec b/blt.spec
index 2657a42..d468685 100644
--- a/blt.spec
+++ b/blt.spec
@@ -1,7 +1,7 @@
 Summary: BLT widget extension to Tcl/Tk scripting language development
 Name: blt
 Version: 2.4
-Release: 11.z
+Release: 12.z
 
 License: MIT
 Group: Development/Libraries
@@ -9,10 +9,8 @@ Source: http://download.sourceforge.net/blt/BLT2.4z.tar.gz
 Patch0: http://download.sourceforge.net/blt/blt2.4z-patch-2
 Patch1: http://jfontain.free.fr/blt2.4z-patch-64
 URL: http://sourceforge.net/projects/blt/
-BuildRequires: XFree86-devel, tk >= 8.3.1
-# work around tcl-devel and tk-devel packages non existence in RH 8.0 and 9:
-BuildRequires: %{_includedir}/tk.h, %{_includedir}/tcl.h
-Requires: tk >= 8.3.1
+BuildRequires: tk-devel >= 8.4.7
+Requires: tk >= 8.4.7
 BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-root-%(%__id_u -n)
 
 %description
@@ -53,6 +51,9 @@ rm -rf $RPM_BUILD_ROOT
 %{_libdir}/%{name}%{version}/
 
 %changelog
+* Thu Nov 10 2005 Jean-Luc Fontaine <jfontain@free.fr> 2.4-12.z
+- only require tk and tk-devel for building
+
 * Fri Apr  7 2005 Michael Schwendt <mschwendt[AT]users.sf.net>
 - rebuilt