guile-2: error when running make doc

[Federico Bruni]

Hi all

I get this error when I run `make doc` on the dev/guile-v2-work branch.
I'm running Debian testing in a 686 VM.

Drawing systems...
warning: compressing over-full page by 32.6 staff-spaces
Writing header field `texidoc' to `./e1/lily-0581dc11.texidoc'...
Writing ./e1/lily-0581dc11-1.signature
Writing ./e1/lily-0581dc11-2.signature
Layout output to `./e1/lily-0581dc11.eps'...
Converting to `./e1/lily-0581dc11.pdf'...
warning: g_spawn_sync failed (0): gs: Failed to fork (Cannot allocate 
memory)
Converting to PNG...
warning: g_spawn_sync failed (0): gs: Failed to fork (Cannot allocate 
memory)
Backtrace:
In ice-9/boot-9.scm:
160: 16 [catch #t #<catch-closure 81225ac0> ...]
In unknown file:
  ?: 15 [apply-smob/1 #<catch-closure 81225ac0>]
In ice-9/eval.scm:
411: 14 [eval # #]
432: 13 [eval # #]
In srfi/srfi-1.scm:
613: 12 [for-each #<procedure 81a26ed0 at ice-9/eval.scm:416:20 (a)> #]
In ice-9/eval.scm:
432: 11 [eval # #]
In ice-9/boot-9.scm:
160: 10 [catch ly-file-failed #<procedure 82760c48 at 
ice-9/eval.scm:416:20 ()> ...]
In unknown file:
  ?: 9 [ly:parse-file "e1/lily-0581dc11.ly"]
  ?: 8 [ly:book-process-to-systems #<Book> #< Output_def> ...]
In ice-9/eval.scm:
432: 7 [eval # #]
432: 6 [eval # #]
In srfi/srfi-1.scm:
616: 5 [for-each #<procedure 8279e228 at ice-9/eval.scm:416:20 (a)> #]
In ice-9/eval.scm:
432: 4 [eval # #]
432: 3 [eval # #]
In srfi/srfi-1.scm:
616: 2 [for-each #<procedure 827a8258 at ice-9/eval.scm:416:20 (a)> #]
In ice-9/eval.scm:
432: 1 [eval # #]
In unknown file:
  ?: 0 [copy-file "./e1/lily-0581dc11.png" "/tmp/lilypond-zIa3I4"]

ERROR: In procedure copy-file:
ERROR: In procedure copy-file: No such file or directory