diff --git a/lib/fonts/cmex10.ttf b/lib/fonts/cmex10.ttf
old mode 100644
new mode 100755
diff --git a/lib/fonts/cmmi10.ttf b/lib/fonts/cmmi10.ttf
old mode 100644
new mode 100755
diff --git a/lib/fonts/cmr10.ttf b/lib/fonts/cmr10.ttf
old mode 100644
new mode 100755
diff --git a/lib/fonts/cmsy10.ttf b/lib/fonts/cmsy10.ttf
old mode 100644
new mode 100755
diff --git a/lib/fonts/esint10.ttf b/lib/fonts/esint10.ttf
old mode 100644
new mode 100755
diff --git a/lib/fonts/eufm10.ttf b/lib/fonts/eufm10.ttf
old mode 100644
new mode 100755
diff --git a/lib/fonts/msam10.ttf b/lib/fonts/msam10.ttf
old mode 100644
new mode 100755
diff --git a/lib/fonts/msbm10.ttf b/lib/fonts/msbm10.ttf
old mode 100644
new mode 100755
diff --git a/lib/fonts/rsfs10.ttf b/lib/fonts/rsfs10.ttf
old mode 100644
new mode 100755
diff --git a/lib/fonts/wasy10.ttf b/lib/fonts/wasy10.ttf
old mode 100644
new mode 100755
diff --git a/src/Buffer.cpp b/src/Buffer.cpp
index d131491e98..2ee9422713 100644
--- a/src/Buffer.cpp
+++ b/src/Buffer.cpp
@@ -3544,7 +3544,7 @@ bool Buffer::doExport(string const & format, bool put_in_tempdir,
 			}
 			return false;
 		}
-		runparams.flavor = converters.getFlavor(path);
+		runparams.flavor = converters.getFlavor(path, this);
 
 	} else {
 		backend_format = format;
diff --git a/src/Converter.cpp b/src/Converter.cpp
index 631b847574..abaae0ea72 100644
--- a/src/Converter.cpp
+++ b/src/Converter.cpp
@@ -189,16 +189,25 @@ void Converters::add(string const & from, string const & to,
 	}
 	converter.readFlags();
 
-	// If we have both latex & pdflatex, we set latex_command to latex.
 	// The latex_command is used to update the .aux file when running
 	// a converter that uses it.
-	if (converter.latex
-	    && (latex_command_.empty() || converter.latex_flavor == "latex"))
-		latex_command_ = subst(command, token_from, "");
-	// Similarly, set xelatex_command to xelatex.
-	if (converter.latex
-	    && (xelatex_command_.empty() || converter.latex_flavor == "xelatex"))
-		xelatex_command_ = subst(command, token_from, "");
+	if (converter.latex) {
+		if (latex_command_.empty() ||
+		    converter.latex_flavor == "latex")
+			latex_command_ = subst(command, token_from, "");
+		if (dvilualatex_command_.empty() ||
+		    converter.latex_flavor == "dvilualatex")
+			dvilualatex_command_ = subst(command, token_from, "");
+		if (lualatex_command_.empty() ||
+		    converter.latex_flavor == "lualatex")
+			lualatex_command_ = subst(command, token_from, "");
+		if (pdflatex_command_.empty() ||
+		    converter.latex_flavor == "pdflatex")
+			pdflatex_command_ = subst(command, token_from, "");
+		if (xelatex_command_.empty() ||
+		    converter.latex_flavor == "xelatex")
+			xelatex_command_ = subst(command, token_from, "");
+	}
 
 	if (it == converterlist_.end()) {
 		converterlist_.push_back(converter);
@@ -258,6 +267,7 @@ void Converters::sort()
 
 
 OutputParams::FLAVOR Converters::getFlavor(Graph::EdgePath const & path)
+					   Buffer const * buffer)
 {
 	for (Graph::EdgePath::const_iterator cit = path.begin();
 	     cit != path.end(); ++cit) {
@@ -274,7 +284,8 @@ OutputParams::FLAVOR Converters::getFlavor(Graph::EdgePath const & path)
 		if (conv.xml)
 			return OutputParams::XML;
 	}
-	return OutputParams::LATEX;
+	return buffer ? buffer->params().getOutputFlavor()
+		      : OutputParams::LATEX;
 }
 
 
@@ -338,7 +349,7 @@ bool Converters::convert(Buffer const * buffer,
 	// buffer is only invalid for importing, and then runparams is not
 	// used anyway.
 	OutputParams runparams(buffer ? &buffer->params().encoding() : 0);
-	runparams.flavor = getFlavor(edgepath);
+	runparams.flavor = getFlavor(edgepath, buffer);
 
 	if (buffer) {
 		runparams.use_japanese = buffer->params().bufferFormat() == "platex";
@@ -403,14 +414,33 @@ bool Converters::convert(Buffer const * buffer,
 			if (!runLaTeX(*buffer, command, runparams, errorList))
 				return false;
 		} else {
-			if (conv.need_aux && !run_latex
-			    && !latex_command_.empty()) {
-				string const command = (buffer && buffer->params().useNonTeXFonts) ?
-					xelatex_command_ : latex_command_;
-				LYXERR(Debug::FILES, "Running " << command
-					<< " to update aux file");
-				if (!runLaTeX(*buffer, command, runparams, errorList))
-					return false;
+			if (conv.need_aux && !run_latex) {
+				string command;
+				switch (runparams.flavor) {
+				case OutputParams::DVILUATEX:
+					command = dvilualatex_command_;
+					break;
+				case OutputParams::LUATEX:
+					command = lualatex_command_;
+					break;
+				case OutputParams::PDFLATEX:
+					command = pdflatex_command_;
+					break;
+				case OutputParams::XETEX:
+					command = xelatex_command_;
+					break;
+				default:
+					command = latex_command_;
+					break;
+				}
+				if (!command.empty()) {
+					LYXERR(Debug::FILES, "Running "
+						<< command
+						<< " to update aux file");
+					if (!runLaTeX(*buffer, command,
+						      runparams, errorList))
+						return false;
+				}
 			}
 
 			// FIXME UNICODE
diff --git a/src/Converter.h b/src/Converter.h
index 13dc1471f3..c0f34e47ae 100644
--- a/src/Converter.h
+++ b/src/Converter.h
@@ -115,7 +115,8 @@ public:
 	///
 	Graph::EdgePath getPath(std::string const & from, std::string const & to);
 	///
-	OutputParams::FLAVOR getFlavor(Graph::EdgePath const & path);
+	OutputParams::FLAVOR getFlavor(Graph::EdgePath const & path,
+				       Buffer const * buffer = 0);
 	/// Flags for converting files
 	enum ConversionFlags {
 		/// No special flags
@@ -158,6 +159,12 @@ private:
 	///
 	std::string latex_command_;
 	///
+	std::string dvilualatex_command_;
+	///
+	std::string lualatex_command_;
+	///
+	std::string pdflatex_command_;
+	///
 	std::string xelatex_command_;
 	/// If \p from = /path/file.ext and \p to = /path2/file2.ext2 then
 	/// this method moves each /path/file*.ext file to /path2/file2*.ext2
diff --git a/status.20x b/status.20x
index 3b13998b73..ce42ae5f96 100644
--- a/status.20x
+++ b/status.20x
@@ -85,6 +85,10 @@ What's new
 - Fixed reading the bounding box from EPS figures with negative
   values (bug 8114).
 
+- Fix generation of auxiliary files for converters specifying the needaux
+  flag by using the same latex backend used for previewing the document
+  instead of always using the plain latex backend.
+
 
 * USER INTERFACE