[3.2.x] Fixed #33753 -- Fixed docs build on Sphinx 5+.

Empty language is not supported anymore. Backport of 565ad5a from main
django · Jun 1, 2022 · a23c25d · a23c25d
1 parent e01b383
commit a23c25d
Showing 1 changed file with 5 additions and 0 deletions.
diff --git 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)))