diff --git a/import.log b/import.log
index 6e27954..1b2351d 100644
--- a/import.log
+++ b/import.log
@@ -5,3 +5,4 @@ ngspice-20-1_fc12:F-12:ngspice-20-1.fc12.src.rpm:1259910264
 ngspice-20-2_fc12:F-12:ngspice-20-2.fc12.src.rpm:1260231732
 ngspice-20-3_fc12:F-12:ngspice-20-3.fc12.src.rpm:1260314128
 ngspice-21-1_cvs20100620_fc12:EL-6:ngspice-21-1.cvs20100620.fc12.src.rpm:1278012375
+ngspice-21-2_cvs20100620_fc12:EL-6:ngspice-21-2.cvs20100620.fc12.src.rpm:1278955578
diff --git a/ngspice.spec b/ngspice.spec
index 00386c0..dab78cc 100644
--- a/ngspice.spec
+++ b/ngspice.spec
@@ -7,7 +7,7 @@
 
 Name:              ngspice
 Version:           21
-Release:           1.cvs20100620%{?dist}
+Release:           2.cvs20100620%{?dist}
 Summary:           A mixed level/signal circuit simulator
 
 License:           BSD
@@ -24,6 +24,9 @@ BuildRoot:         %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n
 BuildRequires:     readline-devel, libXext-devel, libpng-devel, libICE-devel
 BuildRequires:     libXaw-devel, mesa-libGL-devel, libXt-devel, automake, libtool
 BuildRequires:     lyx
+BuildRequires:     bison
+BuildRequires:     byacc
+BuildRequires:     flex ImageMagick
 
 Obsoletes:         ngspice-doc < 20-4.cvs20100619
 Provides:          ngspice-doc = %{version}-%{release}
@@ -218,8 +221,11 @@ cd ng-spice-rework/tests
 
 
 %changelog
-* Thu Jul 01 2010  Chitlesh Goorah <chitlesh [AT] fedoraproject DOT org> 21-0.cvs20100620
-- prerelease -21 with BSIMSOI support for < 130nm designs
+* Sun Jul 11 2010  Chitlesh Goorah <chitlesh [AT] fedoraproject DOT org> 21-2.cvs20100620
+- added bison and byacc as BR
+
+* Thu Jul 01 2010  Chitlesh Goorah <chitlesh [AT] fedoraproject DOT org> 21-1.cvs20100620
+- release -21 with BSIMSOI support for < 130nm designs
 
 * Sat Jun 19 2010  Chitlesh Goorah <chitlesh [AT] fedoraproject DOT org> 20-4.cvs20100619
 - prerelease -21 with BSIMSOI support for < 130nm designs