meta-openembedded/meta-oe/recipes-graphics/ttf-fonts/ttf-dejavu/30-dejavu-aliases.conf

<?xml version="1.0"?>
<!DOCTYPE fontconfig SYSTEM "fonts.dtd">
<fontconfig>
	<alias>
		<family>DejaVu Serif</family>
		<default><family>serif</family></default>
	</alias>
	<alias>
		<family>DejaVu Sans</family>
		<default><family>sans-serif</family></default>
	</alias>
 	<alias>
		<family>DejaVu Sans Mono</family>
		<default><family>monospace</family></default>
	</alias>
</fontconfig>