From c1603508a1341f945164ece39850f99bc421730f Mon Sep 17 00:00:00 2001
From: Alejandro Colomar <alx.manpages@gmail.com>
Date: Sun, 14 Feb 2021 00:10:18 +0100
Subject: [PATCH] sigaltstack.2: SYNOPSIS: Use 'restrict' in prototypes

POSIX specifies that the parameters of sigaltstack()
shall be 'restrict'.  Glibc uses 'restrict' too.
Let's use it here too.

......

.../glibc$ grep_glibc_prototype sigaltstack
signal/signal.h:320:
extern int sigaltstack (const stack_t *__restrict __ss,
			stack_t *__restrict __oss) __THROW;
.../glibc$

Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
---
 man2/sigaltstack.2 | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/man2/sigaltstack.2 b/man2/sigaltstack.2
index d78873d89..62284dbec 100644
--- a/man2/sigaltstack.2
+++ b/man2/sigaltstack.2
@@ -30,7 +30,8 @@ sigaltstack \- set and/or get signal stack context
 .nf
 .B #include <signal.h>
 .PP
-.BI "int sigaltstack(const stack_t *" ss ", stack_t *" old_ss );
+.BI "int sigaltstack(const stack_t *restrict " ss \
+", stack_t *restrict " old_ss );
 .fi
 .PP
 .RS -4