fontconfig 2.10.1 更新会覆盖旧版本软件包创建的符号链接。这些符号链接需要在更新前被移除
rm /etc/fonts/conf.d/20-unhint-small-vera.conf
rm /etc/fonts/conf.d/20-fix-globaladvance.conf
rm /etc/fonts/conf.d/29-replace-bitmap-fonts.conf
rm /etc/fonts/conf.d/30-metric-aliases.conf
rm /etc/fonts/conf.d/30-urw-aliases.conf
rm /etc/fonts/conf.d/40-nonlatin.conf
rm /etc/fonts/conf.d/45-latin.conf
rm /etc/fonts/conf.d/49-sansserif.conf
rm /etc/fonts/conf.d/50-user.conf
rm /etc/fonts/conf.d/51-local.conf
rm /etc/fonts/conf.d/60-latin.conf
rm /etc/fonts/conf.d/65-fonts-persian.conf
rm /etc/fonts/conf.d/65-nonlatin.conf
rm /etc/fonts/conf.d/69-unifont.conf
rm /etc/fonts/conf.d/80-delicious.conf
rm /etc/fonts/conf.d/90-synthetic.conf
pacman -Sy fontconfig
主要的系统级配置应该通过符号链接完成（特别是对于自动微调、亚像素和 lcd 过滤器）
cd /etc/fonts/conf.d
ln -s ../conf.avail/XX-foo.conf
另请查看 Font Configuration 和 Fonts。