Since app-text/ghostscript-gpl-9.02 (?), gs does not provide the "pstoraster" filter anymore, which has been renamed gstoraster.
ghostscript-gpl-9.04-r4 provides a symlink
/usr/libexec/cups/filter/pstoraster -> /usr/libexec/cups/filter/gstoraster for convenience until all print drivers are fixed.
hplip needs to be fixed to use gstoraster instead of pstoraster
Since app-text/ ghostscript- gpl-9.02 (?), gs does not provide the "pstoraster" filter anymore, which has been renamed gstoraster.
ghostscript- gpl-9.04- r4 provides a symlink cups/filter/ pstoraster -> /usr/libexec/ cups/filter/ gstoraster for convenience until all print drivers are fixed.
/usr/libexec/
hplip needs to be fixed to use gstoraster instead of pstoraster