安装其实挺简单，下载源码编译即可
git clone https://gitlab.com/qemu-project/qemu.git
cd qemu
git submodule init
git submodule update --recursive
git checkout xxxxxx # 对应版本号
mkdir build
cd build
../configure --enable-debug
make -j2
make install # 安装
安装完后可以看到各种命令
[root@test build]# qemu-
qemu-aarch64 qemu-img qemu-mipsn32el qemu-riscv64 qemu-system-arm qemu-system-mips64el qemu-system-s390x qemu-tilegx
qemu-aarch64_be qemu-io qemu-nbd qemu-s390x qemu-system-cris qemu-system-mipsel qemu-system-sh4 qemu-x86_64
qemu-alpha qemu-m68k qemu-nios2 qemu-sh4 qemu-system-hppa qemu-system-moxie qemu-system-sh4eb qemu-xtensa
qemu-arm qemu-microblaze qemu-or1k qemu-sh4eb qemu-system-i386 qemu-system-nios2 qemu-system-sparc qemu-xtensaeb
qemu-armeb qemu-microblazeel qemu-ppc qemu-sparc qemu-system-lm32 qemu-system-or1k qemu-system-sparc64
qemu-cris qemu-mips qemu-ppc64 qemu-sparc32plus qemu-system-m68k qemu-system-ppc qemu-system-tricore
qemu-edid qemu-mips64 qemu-ppc64abi32 qemu-sparc64 qemu-system-microblaze qemu-system-ppc64 qemu-system-unicore32
qemu-ga qemu-mips64el qemu-ppc64le qemu-storage-daemon qemu-system-microblazeel qemu-system-riscv32 qemu-system-x86_64
qemu-hppa qemu-mipsel qemu-pr-helper qemu-system-aarch64 qemu-system-mips qemu-system-riscv64 qemu-system-xtensa
qemu-i386 qemu-mipsn32 qemu-riscv32 qemu-system-alpha qemu-system-mips64 qemu-system-rx qemu-system-xtensaeb
但是安装这个软件，又需要各种其他的依赖
比方说Python3
# 依赖安装，视情况而定
yum -y install zlib-devel libffi-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gdbm-devel db4-devel libpcap-devel xz-devel
yum install gcc -y
# 下载安装包
wget https://www.python.org/ftp/python/3.7.4/Python-3.7.4.tgz
mv Python-3.7.4.tgz /usr/local/
mkdir /usr/local/python3
cd /usr/local/
tar -xvf Python-3.7.4.tgz
cd /usr/local/Python-3.7.4/
# 编译安装
./configure --prefix=/usr/local/python3
make & make install
ln -s /usr/local/python3/bin/python3 /usr/bin/python3
比方说 Ninja
apt install re2c
git clone git://github.com/ninja-build/ninja.git && cd ninja
./configure.py --bootstrap
sudo cp ninja /usr/bin/
ninja --version # 查看安装版本
比方说gcc7.5（要求版本大于某个特定版本号）
# 安装相关依赖
sudo yum -y update
sudo yum -y install bzip2 wget gcc gcc-c++ gmp-devel mpfr-devel libmpc-devel make
sudo yum -y install zlib
sudo yum -y install zlib-devel
# 下载安装包
wget https://ftp.gnu.org/gnu/gcc/gcc-7.5.0/gcc-7.5.0.tar.gz
tar -zxvf gcc-7.5.0.tar.gz
cd gcc-7.5.0
# 其他依赖
./contrib/download_prerequisites
mkdir gcc-build-7.5
cd gcc-build-7.5
# 编译
../configure --enable-bootstrap --enable-shared --enable-threads=posix --enable-checking=release --with-system-zlib --enable-__cxa_atexit --disable-libunwind-exceptions --enable-gnu-unique-object --enable-linker-build-id --with-linker-hash-style=gnu --enable-languages=c,c++,go,lto --enable-plugin --enable-initfini-array --disable-libgcj --enable-gnu-indirect-function --with-tune=generic --disable-multilib
make -j4
make install
gcc -v
# 检查动态库 & 查找新生成的动态库
strings /usr/lib64/libstdc++.so.6 | grep GLIBC
find / -xdev -name "libstdc++.so*"
# 链接新的动态库
cp /usr/local/lib64/libstdc++.so.6.0.24 /usr/lib64/
rm -rf /usr/lib64/libstdc++.so.6
ln -s /usr/local/lib64/libstdc++.so.6.0.24 /usr/lib64/libstdc++.so.6
# 添加环境变量
# 在PATH里面追加 /usr/local/bin
# 添加 LD_LIBRARY_PATH、CC、CXX
# bash_profile 类似于
PATH=$PATH:$HOME/.local/bin:$HOME/bin:/usr/local/bin
LD_LIBRARY_PATH=/usr/local/lib64:$LD_LIBRARY_PATH
CC=/usr/local/bin/gcc
CXX=/usr/local/bin/g++
export PATH
export LD_LIBRARY_PATH
export CC
export CXX
# 生效环境变量
source ~/.bash_profile
比如glib2和glib2-devel
yum install -y glib2 glib2-devel
比如 libmount-devel pixman-devel
yum install -y libmount-devel pixman-devel
参考
https://cloud.tencent.com/developer/article/1693084