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Diffstat (limited to 'srfi/srfi-18.scm')
| -rw-r--r-- | srfi/srfi-18.scm | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/srfi/srfi-18.scm b/srfi/srfi-18.scm index 0593f4ef8..925ecb304 100644 --- a/srfi/srfi-18.scm +++ b/srfi/srfi-18.scm @@ -89,6 +89,9 @@ make-condition-variable raise)) +(if (not (provided? 'threads)) + (error "SRFI-18 requires Guile with threads support")) + (cond-expand-provide (current-module) '(srfi-18)) (define (check-arg-type pred arg caller) |