Update coq to 8.8

Dockerfile

@@ -15,8 +15,15 @@ RUN opam init --comp=4.05.0 --auto-setup && \
 
 # Install coq and dependencies
 RUN opam repo add coq-released https://coq.inria.fr/opam/released && \
-    opam update && \
-    opam install coq.8.7.2 coq-flocq
+    opam update
+
+#Install coq 8.7.2 in a switch
+RUN opam switch -A 4.05.0 coq8.7.2
+RUN opam install coq.8.7.2 coq-flocq
+
+#Install coq 8.8 in a switch
+RUN opam switch -A 4.05.0 coq8.8
+RUN opam install coq.8.8.0 coq-flocq
 
 # Install polyml from git
 RUN git clone https://github.com/polyml/polyml.git polyml && \

coq/configure_coq.sh

@@ -25,6 +25,7 @@ fi
 coq_ver=$(${COQBIN}coqc -v 2>/dev/null | sed -n -e 's/The Coq Proof Assistant, version \([^ ]*\).*$/\1/p')
 case "$coq_ver" in
     8.7.2)
+    8.8.0)
        ;;
     *)
         echo "Error: Need 8.7.2"

scripts/ci-coq.sh

 #!/bin/sh
 
-eval `opam config env`
+
 cd ./coq
+
+opam switch coq8.7.2
+eval `opam config env`
+./configure_coq.sh
+make -j
+
+make clean
+
+opam switch coq8.8
+eval `opam config env`
 ./configure_coq.sh
 make -j