Only delete intermediate file if it exists. Works around lilypond -o DIR.

diff --git a/scm/backend-library.scm b/scm/backend-library.scm
index 9fa094f51892e3eb0e0cad2186c1922ba97bf0b3..3a4ccab817871d821b3e6641e1b0e4d044191e2f 100644 (file)
--- a/scm/backend-library.scm
+++ b/scm/backend-library.scm
@@ -140,15 +140,15 @@
 
 (define-public (postprocess-output paper-book module filename formats)
   (let* ((completed (completize-formats formats))
-        (base (string-regexp-substitute "\\.[a-z]+$" "" filename))
+        (base (dir-basename filename ".ps" ".eps"))
         (intermediate (remove (lambda (x) (member x formats)) completed)))
-    
     (for-each (lambda (f)
                ((eval (string->symbol (format "convert-to-~a" f))
                       module) paper-book filename)) completed)
     (if (ly:get-option 'delete-intermediate-files)
        (for-each (lambda (f)
-                   (delete-file (string-append base "." f))) intermediate))))
+                   (if (file-exists? f) (delete-file f)))
+                 (map (lambda (x) (string-append base "." x)) intermediate)))))
 
 (define-public (completize-formats formats)
   (define new-fmts '())