Recently I updated the ghostscript-gpl package and since then started to get the following error when trying to convert ps files to pdf:

Fontmap entry for Proxy has an invalid file or alias name!

I tried to remove any references for Proxy from the Fontmap file (/etc/fonts/Fontmap), but it didn’t work. After some searching I found the genfontmap.ps file, inside the ghostscript-gpl source package. This script can be used to create a new Fontmap file:

 # gs -q -sFONTPATH=/usr/local/share/fonts \
/tmp/ghostscript-8.62/toolbin/genfontmap.ps > \
/etc/fonts/Fontmap

Just thought it would be nice to share this tip :)