[1.6.x] Allowed overriding variables in docs/Makefile.

Backport of c694e6220e from master
2013-07-28 19:58:19 +09:00 · 2013-07-28 19:58:19 +09:00 · 5f8bf4368d
parent c456a27725
commit 5f8bf4368d
1 changed files with 5 additions and 5 deletions
--- a/docs/Makefile
+++ b/docs/Makefile
@ -2,11 +2,11 @@
 #

 # You can set these variables from the command line.
-SPHINXOPTS    =
-SPHINXBUILD   = sphinx-build
-PAPER         =
-BUILDDIR      = _build
-LANGUAGE      =
+SPHINXOPTS    ?=
+SPHINXBUILD   ?= sphinx-build
+PAPER         ?=
+BUILDDIR      ?= _build
+LANGUAGE      ?=

 # Internal variables.
 PAPEROPT_a4     = -D latex_paper_size=a4