Safeguard Makefile commands

doc/Makefile

@@ -1,28 +1,28 @@
 BASEDIR = .
-CLASSES = $(BASEDIR)/classes/ $(BASEDIR)/../modules/
+CLASSES = "$(BASEDIR)/classes/" "$(BASEDIR)/../modules/"
 OUTPUTDIR = $(BASEDIR)/_build
 TOOLSDIR = $(BASEDIR)/tools
-JSDIR = $(BASEDIR)/../platform/web
+JSDIR = "$(BASEDIR)/../platform/web"
 LANGARG ?= en
 LANGCMD = -l $(LANGARG)
 
 .ONESHELL:
 
 clean:
-	rm -rf $(OUTPUTDIR)
+	rm -rf "$(OUTPUTDIR)"
 
 doxygen:
-	rm -rf $(OUTPUTDIR)/doxygen
-	mkdir -p $(OUTPUTDIR)/doxygen
+	rm -rf "$(OUTPUTDIR)/doxygen"
+	mkdir -p "$(OUTPUTDIR)/doxygen"
 	doxygen Doxyfile
 
 rst:
-	rm -rf $(OUTPUTDIR)/rst
-	mkdir -p $(OUTPUTDIR)/rst
-	python3 $(TOOLSDIR)/make_rst.py -o $(OUTPUTDIR)/rst $(LANGCMD) $(CLASSES)
+	rm -rf "$(OUTPUTDIR)/rst"
+	mkdir -p "$(OUTPUTDIR)/rst"
+	python3 "$(TOOLSDIR)/make_rst.py" -o "$(OUTPUTDIR)/rst" "$(LANGCMD)" $(CLASSES)
 
 rstjs:
-	rm -rf $(OUTPUTDIR)/rstjs
-	mkdir -p $(OUTPUTDIR)/rstjs
-	npm --prefix $(JSDIR) ci
-	npm --prefix $(JSDIR) run docs -- --destination $(OUTPUTDIR)/rstjs/html5_shell_classref.rst
+	rm -rf "$(OUTPUTDIR)/rstjs"
+	mkdir -p "$(OUTPUTDIR)/rstjs"
+	npm --prefix "$(JSDIR)" ci
+	npm --prefix "$(JSDIR)" run docs -- --destination "$(OUTPUTDIR)/rstjs/html5_shell_classref.rst"