centos：安装gcc g++

你的名字 2022-12-21 12:59 207阅读 0赞

1.  当前环境

$ uname -r
    3.10.0-514.el7.x86_64

1.  检查g++、gcc是否安装

[oceanstar@localhost ~]$  g++ -v
    bash: g++: 未找到命令...
    [oceanstar@localhost ~]$ gcc -v
    bash: gcc: 未找到命令...

[看这里，按照g++ 11，下面不用看了][g_ 11]  
[G++支持的C++版本][G_C]

# 安装 #

## 安装g++7以上 ##

默认yum安装的是4.8.5，如果想要g++7以上：

On Ubuntu try the following:
    
          sudo add-apt-repository ppa:ubuntu-toolchain-r/test -y
          sudo apt-get update -y
          sudo apt-get install g++-7 -y
    
      On CentOS try the following:
    
          sudo yum install centos-release-scl
          sudo yum install devtoolset-7
          scl enable devtoolset-7 bash

## yum默认安装 ##

1.  开始安装

[oceanstar@localhost ~]$ su
    [root@localhost run]$   yum -y install gcc gcc-c++ kernel-devel

1.  查看是否安装成功

[root@localhost run]# gcc -v
    使用内建 specs。
    COLLECT_GCC=gcc
    COLLECT_LTO_WRAPPER=/usr/libexec/gcc/x86_64-redhat-linux/4.8.5/lto-wrapper
    目标：x86_64-redhat-linux
    配置为：../configure --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --with-bugurl=http://bugzilla.redhat.com/bugzilla --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++,objc,obj-c++,java,fortran,ada,go,lto --enable-plugin --enable-initfini-array --disable-libgcj --with-isl=/builddir/build/BUILD/gcc-4.8.5-20150702/obj-x86_64-redhat-linux/isl-install --with-cloog=/builddir/build/BUILD/gcc-4.8.5-20150702/obj-x86_64-redhat-linux/cloog-install --enable-gnu-indirect-function --with-tune=generic --with-arch_32=x86-64 --build=x86_64-redhat-linux
    线程模型：posix
    gcc 版本 4.8.5 20150623 (Red Hat 4.8.5-44) (GCC) 
    
    [root@localhost run]# g++ -v
    使用内建 specs。
    COLLECT_GCC=g++
    COLLECT_LTO_WRAPPER=/usr/libexec/gcc/x86_64-redhat-linux/4.8.5/lto-wrapper
    目标：x86_64-redhat-linux
    配置为：../configure --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --with-bugurl=http://bugzilla.redhat.com/bugzilla --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++,objc,obj-c++,java,fortran,ada,go,lto --enable-plugin --enable-initfini-array --disable-libgcj --with-isl=/builddir/build/BUILD/gcc-4.8.5-20150702/obj-x86_64-redhat-linux/isl-install --with-cloog=/builddir/build/BUILD/gcc-4.8.5-20150702/obj-x86_64-redhat-linux/cloog-install --enable-gnu-indirect-function --with-tune=generic --with-arch_32=x86-64 --build=x86_64-redhat-linux
    线程模型：posix
    gcc 版本 4.8.5 20150623 (Red Hat 4.8.5-44) (GCC)

1.  查看安装在哪里

[root@localhost run]# which g++
    /usr/bin/g++
    [root@localhost run]# which gcc
    /usr/bin/gcc

[g_ 11]: https://blog.csdn.net/wangzhouf/article/details/108218472
[G_C]: https://gcc.gnu.org/projects/cxx-status.html#cxx11