Testing

.travis.yml

@@ -0,0 +1,51 @@
+language: python
+
+python:
+   - 3.6
+
+sudo: false
+
+cache:
+  apt: true
+  pip: true
+
+matrix:
+  include:
+    - os: linux
+      dist: trusty
+      addons:
+        apt:
+          sources:
+            - ubuntu-toolchain-r-test
+          packages:
+            - gfortran-7
+            - python-pip
+      env:
+        - FC=gfortran-7
+    - os: linux
+      dist: trusty
+      addons:
+        apt:
+          sources:
+            - ubuntu-toolchain-r-test
+          packages:
+            - gfortran-8
+            - python-pip
+      env:
+        - FC=gfortran-8
+    - os: linux
+      dist: trusty
+      addons:
+        apt:
+          sources:
+            - ubuntu-toolchain-r-test
+          packages:
+            - gfortran-9
+            - python-pip
+      env:
+        - FC=gfortran-9
+
+script:
+    - ${FC} --version
+    - cd tests
+    - make FC=${FC}

tests/Makefile

@@ -69,10 +69,10 @@ forpy_mod.o: ../forpy_mod.F90
 	$(FC) $(FFLAGS) -c -o $@ $<
 
 ../forpy_mod.F90: ../forpy_mod.fypp
-	python2 ../fypp.py ../forpy_mod.fypp ../forpy_mod.F90
+	$(PYTHON) ../fypp.py ../forpy_mod.fypp ../forpy_mod.F90
 
 %.F90: %.fypp
-	python2 ../fypp.py $< $@
+	$(PYTHON) ../fypp.py $< $@
 
 .PHONY: clean
 clean: