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-rw-r--r--guix/build/syscalls.scm6
1 files changed, 4 insertions, 2 deletions
diff --git a/guix/build/syscalls.scm b/guix/build/syscalls.scm
index 0f939c23ad..7842b0a9fc 100644
--- a/guix/build/syscalls.scm
+++ b/guix/build/syscalls.scm
@@ -2321,7 +2321,8 @@ always a positive integer."
(terminal-dimension window-size-rows port (const 25)))
(define openpty
- (let ((proc (syscall->procedure int "openpty" '(* * * * *))))
+ (let ((proc (syscall->procedure int "openpty" '(* * * * *)
+ #:library "libutil")))
(lambda ()
"Return two file descriptors: one for the pseudo-terminal control side,
and one for the controlled side."
@@ -2342,7 +2343,8 @@ and one for the controlled side."
(values (* head) (* inferior)))))))
(define login-tty
- (let* ((proc (syscall->procedure int "login_tty" (list int))))
+ (let* ((proc (syscall->procedure int "login_tty" (list int)
+ #:library "libutil")))
(lambda (fd)
"Make FD the controlling terminal of the current process (with the
TIOCSCTTY ioctl), redirect standard input, standard output and standard error