Allow overriding number of sphinx jobs to use

Signed-off-by: Rodrigo Tobar <[email protected]>

Author: rtobar

Makefile

@@ -20,6 +20,7 @@ OUTPUT_DOCTREE      := $(CPYTHON_WORKDIR)/Doc/build/doctree
 OUTPUT_HTML         := $(CPYTHON_WORKDIR)/Doc/build/html
 LOCALE_DIR          := $(CPYTHON_WORKDIR)/locale
 POSPELL_TMP_DIR     := .pospell
+SPHINX_JOBS         := auto
 
 
 .PHONY: help
@@ -43,7 +44,7 @@ build: setup fix_relative_paths do_build
 .PHONY: do_build
 do_build:
 	# Normal build
-	PYTHONWARNINGS=ignore::FutureWarning,ignore::RuntimeWarning $(VENV)/bin/sphinx-build -j auto -W --keep-going -b html -d $(OUTPUT_DOCTREE) -D language=$(LANGUAGE) . $(OUTPUT_HTML) && \
+	PYTHONWARNINGS=ignore::FutureWarning,ignore::RuntimeWarning $(VENV)/bin/sphinx-build -j $(SPHINX_JOBS) -W --keep-going -b html -d $(OUTPUT_DOCTREE) -D language=$(LANGUAGE) . $(OUTPUT_HTML) && \
 		echo "Success! Open file://`pwd`/$(OUTPUT_HTML)/index.html, " \
 			"or run 'make serve' to see them in http://localhost:8000";