From 303efbc26818c7dd5e5ca26d1d8f127be256656e Mon Sep 17 00:00:00 2001
From: Jan Beich <jbeich@FreeBSD.org>
Date: Sat, 9 Jul 2022 16:09:32 +0000
Subject: [PATCH] Common: add explicit <signal.h> for BSDs after 3ed74350129c

Common/ExceptionHandlerSetup.cpp:298:6: error: no matching constructor for initialization of 'sigaltstack'
        if (sigaltstack(&signal_stack, nullptr)) {
            ^           ~~~~~~~~~~~~~~~~~~~~~~
/usr/include/sys/signal.h:449:8: note: candidate constructor (the implicit copy constructor) not viable: requires 1 argument, but 2 were provided
struct __stack_t {
       ^
/usr/include/sys/signal.h:434:19: note: expanded from macro '__stack_t'
 #define __stack_t sigaltstack
                   ^
/usr/include/sys/signal.h:449:8: note: candidate constructor (the implicit move constructor) not viable: requires 1 argument, but 2 were provided
/usr/include/sys/signal.h:434:19: note: expanded from macro '__stack_t'
 #define __stack_t sigaltstack
                   ^
/usr/include/sys/signal.h:449:8: note: candidate constructor (the implicit default constructor) not viable: requires 0 arguments, but 2 were provided
/usr/include/sys/signal.h:434:19: note: expanded from macro '__stack_t'
 #define __stack_t sigaltstack
                   ^
---
 Common/ExceptionHandlerSetup.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Common/ExceptionHandlerSetup.cpp b/Common/ExceptionHandlerSetup.cpp
index df84d0b60c..5594f9a5ce 100644
--- a/Common/ExceptionHandlerSetup.cpp
+++ b/Common/ExceptionHandlerSetup.cpp
@@ -214,6 +214,8 @@ void UninstallExceptionHandler() {
 
 #else
 
+#include <signal.h>
+
 static struct sigaction old_sa_segv;
 static struct sigaction old_sa_bus;