diff --git a/bootstrap/coriolis2.spec.in b/bootstrap/coriolis2.spec.in
index 8272cd68..6cb0a56a 100644
--- a/bootstrap/coriolis2.spec.in
+++ b/bootstrap/coriolis2.spec.in
@@ -17,7 +17,9 @@ URL:             http://www-asim.lip6.fr/
 Packager:        Jean-Paul Chaput <Jean-Paul.Chaput@lip6.fr>
 Requires(post):  ldconfig
 Requires:        boost >= 1.33.1
+Requires:        qt4 >= 4.5.0
 BuildRequires:   boost-devel >= 1.33.1
+BuildRequires:   qt4-devel >= 4.5.0
 BuildRoot:       %{_tmppath}/root-%{name}
 
 
@@ -27,9 +29,10 @@ physical backend flow of Alliance.
 
 
 %package devel
-Summary:      Coriolis 2 VLSI CAD Sytem - Development
-Group:        Applications/Engineering
-Requires:     %{name} = %{version}-%{release}
+Summary:         Coriolis 2 VLSI CAD Sytem - Development
+Group:           Applications/Engineering
+Requires:        %{name} = %{version}-%{release}
+Requires:        qt4-devel >= 4.5.0
 
 
 %description devel
@@ -69,15 +72,15 @@ Development files for the Coriolis 2 package.
  %{__mkdir} -p %{buildroot}%{_sysconfdir}/ld.so.conf.d/
  cat > %{buildroot}%{_sysconfdir}/ld.so.conf.d/%{name}.conf << EOF
 # Coriolis 2 VLSI design system
-%{coriolisTop}/lib
-%{coriolisTop}/lib/python
+%{coriolisTop}/%{_lib}
+%{coriolisTop}/%{_lib}/python
 EOF
 
 %if %{with_binarytar}
  cd %{buildroot}%{coriolisTop}
  tar --exclude "*/cmake_modules*" \
      -jcf %{_sourcedir}/%{name}-binary-%{version}-%{release}.%{_arch}.tar.bz2 \
-     bin lib share
+     bin %{_lib} share
 %endif
 
 
@@ -94,11 +97,11 @@ EOF
 %dir %{coriolisTop}/share/etc
 %dir %{coriolisTop}/share/etc/flute-2.4
 %dir %{coriolisTop}/bin
-%dir %{coriolisTop}/lib
-%dir %{coriolisTop}/lib/python
+%dir %{coriolisTop}/%{_lib}
+%dir %{coriolisTop}/%{_lib}/python
 %{coriolisTop}/bin/*
-%{coriolisTop}/lib/*.so
-%{coriolisTop}/lib/python/*.so
+%{coriolisTop}/%{_lib}/*.so
+%{coriolisTop}/%{_lib}/python/*.so
 %config(noreplace) %{_sysconfdir}/ld.so.conf.d/*
 %config(noreplace) %{coriolisTop}/share/etc/*.xml
 %config(noreplace) %{coriolisTop}/share/etc/flute-2.4/*.dat