expose uninstall-workaround

Makefile

@@ -332,7 +332,7 @@ build-workaround: pyclean
 
 # test that the aliased packages work in isolation and combined
 test-workaround: build-workaround
-	for dist in $(BUILD_ORDER);do pip uninstall --yes $$dist;done
+	$(MAKE) uninstall-workaround
 	for dist in $(BUILD_ORDER);do \
 		pip install dist/$$dist-*.whl ;\
 		ocrd --version ;\
@@ -345,3 +345,7 @@ test-workaround: build-workaround
 	ocrd --version ;\
 	make test ;\
 	for dist in $(BUILD_ORDER);do pip uninstall --yes $$dist;done
+
+uninstall-workaround:
+	for dist in $(BUILD_ORDER);do $(PIP) uninstall --yes $$dist;done
+