From 1cacfcd30f52ccc630b941514830925bc9c5053a Mon Sep 17 00:00:00 2001
From: tommy <tommyskypromax@gmail.com>
Date: Tue, 13 Jan 2026 12:48:17 +0800
Subject: [PATCH] sigpipe: unset SA_SIGINFO since it is using sa_handler

Closes #20278

Signed-off-by: tommy <tommyskypromax@gmail.com>
---
 lib/sigpipe.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lib/sigpipe.h b/lib/sigpipe.h
index 2fd211c514..9fe13af92b 100644
--- a/lib/sigpipe.h
+++ b/lib/sigpipe.h
@@ -58,6 +58,8 @@ static CURL_INLINE void sigpipe_ignore(struct Curl_easy *data,
     action = ig->old_pipe_act;
     /* ignore this signal */
     action.sa_handler = SIG_IGN;
+    /* clear SA_SIGINFO flag since we are using sa_handler */
+    action.sa_flags &= ~SA_SIGINFO;
     sigaction(SIGPIPE, &action, NULL);
   }
 }