diff --git a/setup_environment.sh b/setup_environment.sh
index ca853fdf..24d3f844 100755
--- a/setup_environment.sh
+++ b/setup_environment.sh
@@ -11,23 +11,6 @@ BLACK=""
 QPACKAGE_ROOT="$( cd "$(dirname "$BASH_SOURCE")"  ; pwd -P )"
 
 
-if [[ -z "${IRPF90}" ]] ;
-then
-    make irpf90
-    IRPF90="${QPACKAGE_ROOT}"/bin/irpf90
-    if [[ ! -x "${IRPF90}" ]]
-    then
-      echo $RED "Error in IRPF90 installation" $BLACK
-      exit 1
-    fi
-fi
-
-
-if [[ -z ${OCAMLBREW_BASE} ]]
-then
-  export OCAMLBREW_BASE="$HOME/ocamlbrew"
-fi
-
 cat << EOF > quantum_package.rc
 export IRPF90="${IRPF90}"
 export QPACKAGE_ROOT=\$( cd \$(dirname "\${BASH_SOURCE}")  ; pwd -P )