diff --git a/INSTALL.rst b/INSTALL.rst
index 1796a332..c950d81d 100644
--- a/INSTALL.rst
+++ b/INSTALL.rst
@@ -210,6 +210,12 @@ Zlib
    make
    make install
 
+With Debian or Ubuntu, you can use
+
+.. code:: bash
+
+   sudo apt install zlib1g-dev
+
 
 
 OCaml
@@ -217,6 +223,13 @@ OCaml
 
 *OCaml* is a general purpose programming language with an emphasis on expressiveness and safety.
 
+* The following packages are required (Debian or Ubuntu):
+
+  .. code:: bash
+
+    sudo apt install libncurses5-dev pkg-config libgmp3-dev m4
+
+
 * Download the installer of the OPAM package manager here :
   `<https://raw.githubusercontent.com/ocaml/opam/master/shell/install.sh>`_
   and move it in the :file:`${QP_ROOT}/external` directory
diff --git a/TODO b/TODO
index 699823ae..11be081c 100644
--- a/TODO
+++ b/TODO
@@ -49,8 +49,6 @@ Refaire les benchmarks
 # Documentation de qpsh
 
 # Documentation de /etc
-# Extrapolation qui prend aussi en compe la variance? a tester
-Parler dans le papier de rPT2
 
 # Toto
 Re-design de qp command
@@ -58,3 +56,5 @@ Re-design de qp command
 Doc: plugins et qp_plugins
 
 Ajouter les symetries dans devel
+
+Compiler ezfio avec openmp
diff --git a/configure b/configure
index 3f532061..389f7541 100755
--- a/configure
+++ b/configure
@@ -353,23 +353,24 @@ EOF
 
 
 done
-        
+
+source quantum_package.rc
 
 NINJA=$(find_exe ninja)
 if [[ ${NINJA} = $(not_found) ]] ; then
-        error "Ninja is not installed."
+        error "Ninja (ninja) is not installed."
         fail
 fi
 
 IRPF90=$(find_exe irpf90)
 if [[ ${IRPF90} = $(not_found) ]] ; then
-        error "IRPf90 is not installed."
+        error "IRPf90 (irpf90) is not installed."
         fail
 fi
 
 ZEROMQ=$(find_lib -lzmq)
 if [[ ${ZEROMQ} = $(not_found) ]] ; then
-        error "ZeroMQ is not installed."
+        error "ZeroMQ (zeromq) is not installed."
         fail
 fi
 
@@ -387,31 +388,31 @@ fi
 
 OCAML=$(find_exe ocaml)
 if [[ ${OCAML} = $(not_found) ]] ; then
-        error "OCaml compiler is not installed."
+        error "OCaml (ocaml) compiler is not installed."
         fail
 fi
 
 EZFIO=$(find_dir "${QP_ROOT}"/external/ezfio)
 if [[ ${EZFIO} = $(not_found) ]] ; then
-        error "EZFIO is not installed."
+        error "EZFIO (ezfio) is not installed."
         fail
 fi
 
 ZLIB=$(find_lib -lz)
 if [[ ${ZLIB} = $(not_found) ]] ; then
-        error "Zlib is not installed."
+        error "Zlib (zlib) is not installed."
         fail
 fi
 
 DOCOPT=$(find_python_lib docopt)
 if [[ ${DOCOPT} = $(not_found) ]] ; then
-        error "docopt is not installed."
+        error "docopt (docopt) is not installed."
         fail
 fi
 
 RESULTSFILE=$(find_python_lib resultsFile)
 if [[ ${RESULTSFILE} = $(not_found) ]] ; then
-        error "resultsFile is not installed."
+        error "resultsFile (resultsFile) is not installed."
         fail
 fi