Issue 4734: Add lilypond-book can use XeTeX backend for auto-detect

lilypond-book uses TeX engine for auto-detect default settings.
In the case of using XeTeX , the detection did not work.
When there is no glyphs, pdfTeX creates PDF.
However, XeTeX does not create PDF.
Threfore, the detection is failed.

diff --git a/python/book_texinfo.py b/python/book_texinfo.py
index 226ec8eb6f787b0bf8569d0dc51e6f2b99f51e92..1055615d67e413373510c133de43dd2c5aae9f43 100644 (file)
--- a/python/book_texinfo.py
+++ b/python/book_texinfo.py
@@ -170,6 +170,8 @@ TEXINFO_INSPECTION_DOCUMENT = r'''
 
 @message{Global: textwidth=@the@hsize,exampleindent=@the@lispnarrowing}
 
+dummy
+
 @bye
 '''