From 0ce0274a9a8b8937afb5ae278b5202ba97ce0cb6 Mon Sep 17 00:00:00 2001
From: dybucc <149513579+dybucc@users.noreply.github.com>
Date: Tue, 23 Jun 2026 18:07:12 +0200
Subject: [PATCH] fuchsia: fix `sigaction` definition

Proposes a solution to fix `sigaction` [1]. This contributes to the open
question on how to manage this type.

[1]: https://cs.opensource.google/fuchsia/fuchsia/+/main:zircon/third_party/ulib/musl/include/signal.h;l=197-205
---
 src/fuchsia/mod.rs | 21 ++++++++++++---------
 1 file changed, 12 insertions(+), 9 deletions(-)

diff --git a/src/fuchsia/mod.rs b/src/fuchsia/mod.rs
index 834d4e9fac2b7..95dc8383e07fe 100644
--- a/src/fuchsia/mod.rs
+++ b/src/fuchsia/mod.rs
@@ -267,15 +267,6 @@ s! {
         __dummy4: [c_char; 16],
     }
 
-    // FIXME(1.0): This should not implement `PartialEq`
-    #[allow(unpredictable_function_pointer_comparisons)]
-    pub struct sigaction {
-        pub sa_sigaction: crate::sighandler_t,
-        pub sa_mask: crate::sigset_t,
-        pub sa_flags: c_int,
-        pub sa_restorer: Option<extern "C" fn()>,
-    }
-
     pub struct termios {
         pub c_iflag: crate::tcflag_t,
         pub c_oflag: crate::tcflag_t,
@@ -1037,6 +1028,18 @@ s_no_extra_traits! {
         ifu_broadaddr: *mut sockaddr,
         ifu_dstaddr: *mut sockaddr,
     }
+
+    pub union __c_anonymous_sigaction___sa_handler {
+        sa_handler: Option<extern "C" fn(c_int)>,
+        sa_sigaction: Option<extern "C" fn(c_int, *mut siginfo_t, *mut c_void)>,
+    }
+
+    pub struct sigaction {
+        pub __sa_handler: crate::__c_anonymous_sigaction___sa_handler,
+        pub sa_mask: crate::sigset_t,
+        pub sa_flags: c_int,
+        pub sa_restorer: Option<extern "C" fn()>,
+    }
 }
 
 cfg_if! {