From 0dd136bc36709bd413505387ef44a5b60e6be74c Mon Sep 17 00:00:00 2001
From: Tobias Geerinckx-Rice <me@tobias.gr>
Date: Tue, 6 Jul 2021 09:02:50 +0200
Subject: [PATCH] Revert "syscalls: 'terminal-dimension' ignores EPERM."

This reverts commit 17a102332a253f0e3b1f511fa7bda2094264a77c.
See <https://github.com/koverstreet/bcachefs/pull/277>.
---
 guix/build/syscalls.scm | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/guix/build/syscalls.scm b/guix/build/syscalls.scm
index 8886fc0fb9..ac1b0c2eea 100644
--- a/guix/build/syscalls.scm
+++ b/guix/build/syscalls.scm
@@ -2236,8 +2236,8 @@ (define (terminal-dimension window-dimension port fall-back)
         ;; would return EINVAL instead in some cases:
         ;; <https://bugs.ruby-lang.org/issues/10494>.
         ;; Furthermore, some FUSE file systems like unionfs return ENOSYS for
-        ;; that ioctl, and bcachefs returns EPERM.
-        (if (memv errno (list ENOTTY EINVAL ENOSYS EPERM))
+        ;; that ioctl.
+        (if (memv errno (list ENOTTY EINVAL ENOSYS))
             (fall-back)
             (apply throw args))))))