https://gitlab.com/procps-ng/procps/-/commit/2dc340e47669e0b0df7f71ff082e05ac5fa36615

From 2dc340e47669e0b0df7f71ff082e05ac5fa36615 Mon Sep 17 00:00:00 2001
From: Rui Chen <rui@chenrui.dev>
Date: Thu, 26 Dec 2024 11:09:18 -0500
Subject: [PATCH] local/signals.c: guard `SIGPOLL` to fix build on macOS

Signed-off-by: Rui Chen <rui@chenrui.dev>
---
 local/signals.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/local/signals.c b/local/signals.c
index 6d68c07d..12656796 100644
--- a/local/signals.c
+++ b/local/signals.c
@@ -125,7 +125,9 @@ static const mapstruct sigtable[] = {
   {"VTALRM", SIGVTALRM},
   {"PROF",   SIGPROF},
   {"WINCH",  SIGWINCH},
+#ifdef SIGPOLL
   {"POLL",   SIGPOLL},    // in SUSv3, prioritize over IO
+#endif
 #ifdef SIGIO
   {"IO",     SIGIO},      // possibly = POLL
 #endif
-- 
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