From eb097e9abf3c82f78472002e90e4fe8f3d8d63a9 Mon Sep 17 00:00:00 2001
From: Heikki Vatiainen <hvn@radiatorsoftware.com>
Date: Mon, 30 Jan 2023 22:43:29 +0200
Subject: [PATCH] GH-425 Avoid C++ compiler warning about conversion from
 string literal to 'char *.

In C string literals do not have the 'const' qualifier but in C++ they do.
Avoid C++ compiler warnings by changing our TRACE() funciton definition to use
'const char *' instead of plain 'char *'. This is a useful change for C too
because they string passed to the function can be expected to be read-only.
---
 SSLeay.xs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/SSLeay.xs b/SSLeay.xs
index 68803825..df96ecb8 100644
--- a/SSLeay.xs
+++ b/SSLeay.xs
@@ -227,7 +227,7 @@ which conflicts with perls
 #define PR4(s,t,u,v)
 #endif
 
-static void TRACE(int level,char *msg,...) {
+static void TRACE(int level,const char *msg,...) {
     va_list args;
     SV *trace = get_sv("Net::SSLeay::trace",0);
     if (trace && SvIOK(trace) && SvIV(trace)>=level) {