GhostScript Fail (regression 2.19.17 to 2.19.18)

[Andrew Smith]

I'm getting a failure all-around on a new Arch VM I'm running in my windows machine. I'm using lyp here to make a/b version testing easier. Basically, the gs command is failing when liilypond runs it but it works just fine when I copy/paste it and run it manually.

2.19.17 works, but 2.19.18 fails. Shell info + file is below.

GhostScript system version is 9.22.

https://gist.github.com/andrewcsmith/eb17a859e62921f3ad50a4c5298628e9

This is urgent for me, as I don't have access to the old machine where this worked, and I have some libraries that use the recent font changes -- thanks a lot.

```
address@hidden ly_test]$ lyp use 2.19.18
Using Lilypond version 2.19.18
address@hidden ly_test]$ lyp compile test.ly
Lyp 1.3.5
GNU LilyPond 2.19.18
Processing `/tmp/lyp/wrappers/test.ly'
Parsing...
Interpreting music...
Preprocessing graphical objects...
Finding the ideal number of pages...
Fitting music on 1 page...
Drawing systems...
Layout output to `test.ps'...
Converting to `./test.pdf'...
warning: `(gs -q -dSAFER -dDEVICEWIDTHPOINTS=595.28 -dDEVICEHEIGHTPOINTS=841.89
-dCompatibilityLevel=1.4 -dNOPAUSE -dBATCH -r1200 -sDEVICE=pdfwrite
-sOutputFile=./test.pdf -c.setpdfwrite -ftest.ps)' failed (256)

fatal error: failed files: "/tmp/lyp/wrappers/test.ly"

address@hidden ly_test]$ lyp use 2.19.17
Using Lilypond version 2.19.17
address@hidden ly_test]$ lyp compile test.ly
Lyp 1.3.5
GNU LilyPond 2.19.17
Processing `/tmp/lyp/wrappers/test.ly'
Parsing...
Interpreting music...
Preprocessing graphical objects...
Finding the ideal number of pages...
Fitting music on 1 page...
Drawing systems...
Layout output to `test.ps'...
Converting to `./test.pdf'...
Success: compilation successfully completed
```

File:

\score {
    \new Voice {
        c'4 d' e' f'
    }

    \layout { }
}