docker - 如何在docker centos7中安装gcc7

Question

我正在尝试基于centos7构建docker镜像

FROM centos:centos7

RUN yum -y update
RUN yum -y install gcc
RUN gcc --version

安装的 gcc为4.8:

步

 4/4 : RUN gcc --version
 ---> Running in 70b9aa4a1f67
gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-36)
Copyright (C) 2015 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

如何安装gcc7？我尝试了devtools-7，它不起作用:

FROM centos:centos7

RUN yum -y update
RUN yum -y install scl-utils
RUN yum -y install devtoolset-7-gcc
RUN scl enable devtoolset-7 bash
RUN gcc --version

我有:

Step 4/6 : RUN yum -y install devtoolset-7-gcc
 ---> Running in 85b49f411d4c
Loaded plugins: fastestmirror, ovl
Loading mirror speeds from cached hostfile
 * base: mirror.imt-systems.com
 * extras: mirror.23media.com
 * updates: ftp.plusline.net
No package devtoolset-7-gcc available.
Error: Nothing to do
The command '/bin/sh -c yum -y install devtoolset-7-gcc' returned a non-zero code: 1

Answer 1

FROM centos:centos7
RUN yum update -y
RUN yum groupinstall "Development Tools" -y    
RUN yum install wget -y
RUN curl -O https://ftp.gnu.org/gnu/gcc/gcc-7.3.0/gcc-7.3.0.tar.gz
RUN tar xzf gcc-7.3.0.tar.gz
RUN cd gcc-7.3.0
RUN ./contrib/download_prerequisites
RUN cd ..
RUN mkdir gcc-build
RUN cd gcc-build
RUN ../gcc-7.3.0/configure                           \
    --enable-shared                                  \
    --enable-threads=posix                           \
    --enable-__cxa_atexit                            \
    --enable-clocale=gnu                             \
    --disable-multilib                               \
    --enable-languages=all
RUN make
# (Go make a cup of ice tea :)
RUN make install

为了节省构建时间，您可以使用“docker commit”从运行的docker创建一个新的docker，或者将/ usr / local保存到tar文件，然后在其他任何新的centos7 docker上打开它。