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-rw-r--r--Doc/Makefile6
1 files changed, 5 insertions, 1 deletions
diff --git a/Doc/Makefile b/Doc/Makefile
index 6f86728..05eeab9 100644
--- a/Doc/Makefile
+++ b/Doc/Makefile
@@ -13,7 +13,11 @@ SOURCES =
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 \