Makefile: use all available cores by default

swhite2 · swhite2 · commit 0a8b74f047a6 · 2023-07-13T13:34:20.000+02:00
diff --git a/Makefile b/Makefile
@@ -53,7 +53,7 @@ clean:
 
 .PHONY: html
 html:
-	$(SPHINXBUILD) -b html $(ALLSPHINXOPTS) $(BUILDDIR)/html
+	$(SPHINXBUILD) -b html -j auto $(ALLSPHINXOPTS) $(BUILDDIR)/html
 	@echo
 	@echo "Build finished. The HTML pages are in $(BUILDDIR)/html."
 
