From 0ab7479f5f1b430279ae45e41fb3d981018c2a2b Mon Sep 17 00:00:00 2001
From: Sylvestre Ledru <sylvestre@debian.org>
Date: Mon, 30 Mar 2026 14:21:50 +0200
Subject: [PATCH] fix(env): skip uncatchable signals on OpenBSD when applying
 to all signals

---
 .vscode/cspell.dictionaries/jargon.wordlist.txt |  1 +
 src/uu/env/src/env.rs                           | 11 ++++++++++-
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/.vscode/cspell.dictionaries/jargon.wordlist.txt b/.vscode/cspell.dictionaries/jargon.wordlist.txt
index 3efb7d3a9..8b6a8c908 100644
--- a/.vscode/cspell.dictionaries/jargon.wordlist.txt
+++ b/.vscode/cspell.dictionaries/jargon.wordlist.txt
@@ -279,3 +279,4 @@ Nofile
 rprocess
 statat
 getdents
+SIGTHR
diff --git a/src/uu/env/src/env.rs b/src/uu/env/src/env.rs
index 334354425..aa1bcfc70 100644
--- a/src/uu/env/src/env.rs
+++ b/src/uu/env/src/env.rs
@@ -1080,7 +1080,16 @@ where
         let Ok(sig) = signal_from_value(sig_value) else {
             return Ok(());
         };
-        signal_fn(sig)?;
+        match signal_fn(sig) {
+            Ok(()) => {}
+            Err(_) if !explicit => {
+                // When applying to all signals, silently skip signals that
+                // the OS refuses to change (e.g. SIGTHR on OpenBSD).
+                // GNU env also ignores these.
+                return Ok(());
+            }
+            Err(e) => return Err(e),
+        }
         log.record(sig_value, action_kind, explicit);
 
         // Set environment variable to communicate to Rust child processes