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-rw-r--r--Documentation/conf.py13
1 files changed, 11 insertions, 2 deletions
diff --git a/Documentation/conf.py b/Documentation/conf.py
index fa0a42b47e62..a8fe845832bc 100644
--- a/Documentation/conf.py
+++ b/Documentation/conf.py
@@ -16,6 +16,8 @@ import sys
import os
import sphinx
+from subprocess import check_output
+
# Get Sphinx version
major, minor, patch = sphinx.version_info[:3]
@@ -276,13 +278,20 @@ latex_elements = {
\\setsansfont{DejaVu Sans}
\\setromanfont{DejaVu Serif}
\\setmonofont{DejaVu Sans Mono}
+ '''
+}
+# At least one book (translations) may have Asian characters
+# with are only displayed if xeCJK is used
+
+cjk_cmd = check_output(['fc-list', '--format="%{family[0]}\n"']).decode('utf-8', 'ignore')
+if cjk_cmd.find("Noto Sans CJK SC") >= 0:
+ print ("enabling CJK for LaTeX builder")
+ latex_elements['preamble'] += '''
% This is needed for translations
\\usepackage{xeCJK}
\\setCJKmainfont{Noto Sans CJK SC}
-
'''
-}
# Fix reference escape troubles with Sphinx 1.4.x
if major == 1 and minor > 3: