编译redis遇到的错

报错信息如下：

server.c:5124:49: error: ‘struct redisServer’ has no member named ‘supervised_mode’
     server.supervised = redisIsSupervised(server.supervised_mode);
                                                 ^
server.c:5125:28: error: ‘struct redisServer’ has no member named ‘daemonize’
     int background = server.daemonize && !server.supervised;
                            ^
server.c:5125:49: error: ‘struct redisServer’ has no member named ‘supervised’
     int background = server.daemonize && !server.supervised;
                                                 ^
server.c:5129:29: error: ‘struct redisServer’ has no member named ‘pidfile’
     if (background || server.pidfile) createPidFile();
                             ^
server.c:5134:16: error: ‘struct redisServer’ has no member named ‘sentinel_mode’
     if (!server.sentinel_mode) {
                ^
server.c:5144:19: error: ‘struct redisServer’ has no member named ‘cluster_enabled’
         if (server.cluster_enabled) {
                   ^
server.c:5152:19: error: ‘struct redisServer’ has no member named ‘ipfd_count’
         if (server.ipfd_count > 0 || server.tlsfd_count > 0)
                   ^
server.c:5152:44: error: ‘struct redisServer’ has no member named ‘tlsfd_count’
         if (server.ipfd_count > 0 || server.tlsfd_count > 0)
                                            ^
server.c:5154:19: error: ‘struct redisServer’ has no member named ‘sofd’
         if (server.sofd > 0)
                   ^
server.c:5155:94: error: ‘struct redisServer’ has no member named ‘unixsocket’
             serverLog(LL_NOTICE,"The server is now ready to accept connections at %s", server.unixsocket);
                                                                                              ^
server.c:5156:19: error: ‘struct redisServer’ has no member named ‘supervised_mode’
         if (server.supervised_mode == SUPERVISED_SYSTEMD) {
                   ^
server.c:5157:24: error: ‘struct redisServer’ has no member named ‘masterhost’
             if (!server.masterhost) {
                        ^
server.c:5170:15: error: ‘struct redisServer’ has no member named ‘maxmemory’
     if (server.maxmemory > 0 && server.maxmemory < 1024*1024) {
               ^
server.c:5170:39: error: ‘struct redisServer’ has no member named ‘maxmemory’
     if (server.maxmemory > 0 && server.maxmemory < 1024*1024) {
                                       ^
server.c:5171:176: error: ‘struct redisServer’ has no member named ‘maxmemory’
         serverLog(LL_WARNING,"WARNING: You specified a maxmemory value that is less than 1MB (current value is %llu bytes). Are you sure this is what you really want?", server.maxmemory);
                                                                                                       

错误原因：gcc版本问题

# 查看gcc版本
gcc -v

升级gcc版本

yum -y install centos-release-scl
yum -y install devtoolset-9-gcc devtoolset-9-gcc-c++ devtoolset-9-binutils
#这条命令要执行
scl enable devtoolset-9 bash
 
#注意：scl命令启用只是临时的，退出xshell或者重启就会恢复到原来的gcc版本。
#如果要长期生效的话，执行如下：
echo "source /opt/rh/devtoolset-9/enable" >>/etc/profile