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-rw-r--r--docs/Makefile5
1 files changed, 5 insertions, 0 deletions
diff --git a/docs/Makefile b/docs/Makefile
index 39f84ec0e3..2b44830531 100644
--- a/docs/Makefile
+++ b/docs/Makefile
@@ -9,6 +9,11 @@ PAPER ?=
BUILDDIR ?= _build
LANGUAGE ?=
+# Set the default language.
+ifndef LANGUAGE
+override LANGUAGE = en
+endif
+
# Convert something like "en_US" to "en", because Sphinx does not recognize
# underscores. Country codes should be passed using a dash, e.g. "pt-BR".
LANGUAGEOPT = $(firstword $(subst _, ,$(LANGUAGE)))