diff options
Diffstat (limited to 'gnu/services')
| -rw-r--r-- | gnu/services/configuration.scm | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/gnu/services/configuration.scm b/gnu/services/configuration.scm index 2b3bd4c1f4..10cb933ed1 100644 --- a/gnu/services/configuration.scm +++ b/gnu/services/configuration.scm @@ -436,7 +436,11 @@ the list result in @code{#t} when applying PRED? on them." (define list-of-strings? (list-of string?)) -(define alist? list?) +(define alist? + (match-lambda + (() #t) + ((head . tail) (and (pair? head) (alist? tail))) + (_ #f))) (define serialize-file-like empty-serializer) |