以在centos7.6上编译OpenSSH9.3p1版本为例

1、环境准备

1. 安装依赖包

   yum install -y rpm-build gcc gcc-c++ glibc glibc-devel openssl-devel openssl prce pcre-devel zlib zlib-devel make wget krb5-devel pam-devel libX11-devel xmkmf libXt-devel initscripts imake gtk2-devel lrzsz

2. 创建编译目录

   mkdir -pv /root/rpmbuild/{BUILD,BUILDROOT,RPMSSOURCES,SPECS,SRPMS}

3. 从OpenSSH官网获取源码包后解压

   cd /root/rpmbuild/SOURCES/
   tar -zxvf openssh-9.3p1.tar.gz -C /root/rpmbuild/SPECS/

    

2、编译rpm包

1. 修改参数

   cd /root/rpmbuild/SPEC/openssh-9.3p1/contrib/redhat/
   
   sed -i -e "s/%global no_gnome_askpass 0/%global no_gnome_askpass 1/g" openssh.spec
   sed -i -e "s/%global no_x11_askpass 0/%global no_x11_askpass 1/g" openssh.spec
   sed -i '/openssl-devel < 1.1/s/^/#/' openssh.spec

2. 执行编译

   rpmbuild -bb /root/rpmbuild/SPECS/openssh-9.3p1/contrib/redhat/openssh.spec

3. 编译成功会生成的3个rpm包

   ls /root/rpmbuild/RPMS/x86_64/
   openssh-9.3p1-1.el7.x86_64.rpm
   openssh-server-9.3p1-1.el7.x86_64.rpm
   openssh-clients-9.3p1-1.el7.x86_64.rpm

通过上述编译获取rpm包后，即可使用rpm包进行OpenSSH升级。