The "A4" pdfs were previously the wrong size due to a change in the options in Sphinx 1.5.
See also sphinx-doc/sphinx#5235
DISTVERSION = $(shell $(PYTHON) tools/extensions/patchlevel.py)
SPHINXERRORHANDLING = -W
-ALLSPHINXOPTS = -b $(BUILDER) -d build/doctrees -D latex_elements.papersize=$(PAPER) \
+# Internal variables.
+PAPEROPT_a4 = -D latex_elements.papersize=a4paper
+PAPEROPT_letter = -D latex_elements.papersize=letterpaper
+
+ALLSPHINXOPTS = -b $(BUILDER) -d build/doctrees $(PAPEROPT_$(PAPER)) \
$(SPHINXOPTS) $(SPHINXERRORHANDLING) . build/$(BUILDER) $(SOURCES)
.PHONY: help build html htmlhelp latex text changes linkcheck \
--- /dev/null
+Fix the Doc/Makefile regarding PAPER environment variable and PDF builds