From b29d0f021275d105f719dbefb07c8dfe17b95809 Mon Sep 17 00:00:00 2001
From: Mattias Ellert <mattias.ellert@physics.uu.se>
Date: Sat, 11 Dec 2021 07:39:20 +0100
Subject: [PATCH] Fix compilation when char is unsigned (armv7hl, aarch64,
 ppc64le, s390x)

../xrootd-5.4.0/src/XrdNet/XrdNetPMarkCfg.cc: In static member function 'static XrdNetPMark* XrdNetPMarkCfg::Config(XrdSysError*, XrdScheduler*, XrdSysTrace*, bool&)':
../xrootd-5.4.0/src/XrdNet/XrdNetPMarkCfg.cc:271:16: error: comparison is always false due to limited range of data type [-Werror=type-limits]
  271 |    if (useFFly < 0)
      |        ~~~~~~~~^~~
../xrootd-5.4.0/src/XrdNet/XrdNetPMarkCfg.cc: In static member function 'static int XrdNetPMarkCfg::Parse(XrdSysError*, XrdOucStream&)':
../xrootd-5.4.0/src/XrdNet/XrdNetPMarkCfg.cc:1037:20: error: comparison is always false due to limited range of data type [-Werror=type-limits]
 1037 |        if (useFFly < 0) useFFly = 1;
      |            ~~~~~~~~^~~
---
 src/XrdNet/XrdNetPMarkCfg.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/XrdNet/XrdNetPMarkCfg.cc b/src/XrdNet/XrdNetPMarkCfg.cc
index d82b2938bfb..e7cb00ed599 100644
--- a/src/XrdNet/XrdNetPMarkCfg.cc
+++ b/src/XrdNet/XrdNetPMarkCfg.cc
@@ -132,7 +132,7 @@ bool          tryVO   = false;
 bool          useDefs = false;
 
 bool          useFLbl = false;
-char          useFFly = -1;
+signed char   useFFly = -1;
 bool          addFLFF = false;
 bool          useSTag = true;