Merge branch 'clebergnu-make-requirements-v5'

Signed-off-by: NAmador Pahim <apahim@redhat.com>

Makefile

@@ -153,9 +153,12 @@ requirements-selftests: requirements
 	- pip install -r requirements-selftests.txt
 
 requirements-plugins: requirements
-	for MAKEFILE in $(AVOCADO_PLUGINS);\
-		do AVOCADO_DIRNAME=$(AVOCADO_DIRNAME) make -C $$MAKEFILE requirements &>/dev/null && echo ">> DONE $$MAKEFILE" || echo ">> SKIP $$MAKEFILE";\
-	done
+	for MAKEFILE in $(AVOCADO_PLUGINS);do\
+		if test -f $$MAKEFILE/Makefile; then echo ">> REQUIREMENTS (Makefile) $$MAKEFILE"; AVOCADO_DIRNAME=$(AVOCADO_DIRNAME) make -C $$MAKEFILE requirement &>/dev/null;\
+		elif test -f $$MAKEFILE/requirements.txt; then echo ">> REQUIREMENTS (requirements.txt) $$MAKEFILE"; pip install $(PYTHON_DEVELOP_ARGS) -r $$MAKEFILE/requirements.txt;\
+		else echo ">> SKIP $$MAKEFILE";\
+		fi;\
+	done;
 
 smokecheck: clean develop
 	./scripts/avocado run passtest.py