Add makefile test

.gitlab-ci.yml

@@ -35,4 +35,15 @@ python_test:
     - |
       pip install -r build_requirements.txt
 
-
+check_makefile:
+  image: python:3.9
+  stage: test
+  script:
+    - apt-get update
+    - apt-get install make
+    - apt-get install -yqq graphviz
+    - echo "Installing SGN Family libraries"
+      |
+      pip install -r build_requirements.txt
+    - pip3 install ".[dev]"
+    - make all