安装re2c
下载
https://down.24kplus.com/linux/re2c-1.1.1.tar.gz
安装
tar -zxvf re2c-1.1.1.tar.gz
cd re2c-1.1.1
./configure && make && make install
re2c -v
安装ninja
下载
https://codeload.github.com/ninja-build/ninja/tar.gz/refs/tags/v1.10.2
安装
tar -zxvf ninja-1.10.2.tar.gz
cd ninja-1.10.2
cp ./ninja /usr/bin
./configure.py --bootstrap
ninja --version
升级gcc g++
yum install -y http://mirror.centos.org/centos/7/extras/x86_64/Packages/centos-release-scl-rh-2-3.el7.centos.noarch.rpm
yum install -y http://mirror.centos.org/centos/7/extras/x86_64/Packages/centos-release-scl-2-3.el7.centos.noarch.rpm
yum install -y devtoolset-9-gcc-c++
scl enable devtoolset-9 bash
参考：https://blog.csdn.net/b_ingram/article/details/121569398
安装qemu-7.0.0
下载
https://download.qemu.org/qemu-7.0.0.tar.xz
安装
tar xvJf qemu-7.0.0.tar.xz
cd qemu-7.0.0
./configure
make
make install
参考：https://blog.csdn.net/qq_36287943/article/details/120061500
