+#
+# The math document now depends on the mhchem package which produces wrong
+# output with XeTeX/LuaTeX and both TeX fonts and non-TeX fonts:
+# https://www.mail-archive.com/search?l=mid&q=n0sne9%24iis%241%40ger.gmane.org
+export/doc(|/de|/es|/fr)/Math.*systemF
+export/doc/(|de/|es/|fr/)Math_(dvi3|pdf5)_texF