Detailed process of upgrading gcc (version 10.2.0) under CentOS7 environment
Short IntroductionHello everyone, today I will share with you how to upgrade the gcc compiler. The Linux system actually comes with a built-in gcc compiler, but the version is relatively low. Currently, some open source tools such as Apache Doris require a higher version of the gcc 5.3.1+ compiler to compile C++ code during installation. Then let's understand how to upgrade gcc (from 4.8.5 to 10.2.0). 1. Check the current gcc version## Check the current system gcc version. Default is 4.8.5g++ -v or gcc --version
2. Download the gcc installation package (version 10.2.0)## Download address: http://ftp.gnu.org/gnu/gcc## Download via wget command under linux wget http://ftp.gnu.org/gnu/gcc/gcc-10.2.0/gcc-10.2.0.tar.gz
3. Unzip the installation packagetar -xvf gcc-10.2.0.tar.gz## Unzip directory gcc-10.2.0
4. Download dependent libraries## Enter the unzipped directory and download the dependency library cd gcc-10.2.0./contrib/download_prerequisites
5. The installation system must include modulesyum install -y gcc-c++ libstdc++-static ant cmake byacc flex automake libtool binutils-devel bison ncurses-devel gcc kernel-devel libtool libatomic
6. Create a compilation directory## Create a compilation directory in the same directory as gcc-10.2.0. The name is: gcc-build-10.2.0mkdir ../gcc-build-10.2.0
7. Generate Makefile## Enter the compilation directory, execute the command, and generate the Makefile file cd gcc-build-10.2.0../gcc-10.2.0/configure --enable-checking=release --enable-languages=c,c++ --disable-multilib
illustrate:If an error message is displayed, configure: error: Building GCC requires GMP 4.2+, MPFR 3.1.0+ and MPC 0.8.0+. You need to delete the dependency package downloaded in step 4 and then execute it again. The correct packet sizes are as follows:
8. Compile#Execute the command to compile. Here, 4 jobs are used. The compilation time is about 40 minutes. This value should not be set too high. make -j4 ## It is recommended to use nohup & execution, which is really slow.
9. Installationmake install ## It is recommended to use nohup & to execute. It takes about 2 minutes to complete 10. Configure libstdc++.so## Verify whether libstdc++.so exists in the compilation directory (gcc-build-10.2.0) find . -name "libstdc++.so*"
## Enter the libstdc++.so configuration directory cd /usr/lib64 ## Copy the new libstdc++.so to the directory cp /root/gcc-build-10.2.0/stage1-x86_64-pc-linux-gnu/libstdc++-v3/src/.libs/libstdc++.so.6.0.28 . ## Backup mv libstdc++.so.6 libstdc++.so.6.old ## Create a new soft link ln -sv libstdc++.so.6.0.28 libstdc++.so.6
11. Configure environment variables## Uninstall the old version 4.8.5yum remove gcc gcc-c++## Enter the root directorycd ~## Edit the current user environment variablevim .bash_profile## ContentPATH=$PATH:$HOME/bin:/usr/local/bin/export CC=/usr/local/bin/gccexport CXX=/usr/local/bin/g++## Take effect immediatelysource ~/.bash_profile## Verify gcc --version
SummarizeDuring the gcc upgrade process, various module or package missing problems may occur. You need to install them one by one. In fact, this is also related to the Linux system environment itself. So don’t be afraid if you have problems, just solve them. I believe you can do it. Finally, a small script for overall installation is attached : : : : : : : : : : : : : : : This is the end of this article about the detailed process of upgrading gcc (version 10.2.0) under CentOS7 environment. For more relevant CentOS upgrade gcc content, please search 123WORDPRESS.COM's previous articles or continue to browse the following related articles. I hope everyone will support 123WORDPRESS.COM in the future! You may also be interested in:
|
<<: Implementing form submission without refreshing the page based on HTML
>>: TypeScript Mapping Type Details
Recommend
The most complete tutorial on installing centos8.1 with VMware15.5 and the problem of insufficient physical memory
1. Virtual Machine Preparation 1. Create a new vi...
JavaScript history object explained
Table of contents 1. Route navigation 2. History ...
Detailed explanation and extension of ref and reactive in Vue3
Table of contents 1. Ref and reactive 1. reactive...
jQuery implements the mouse drag image function
This example uses jQuery to implement a mouse dra...
Detailed tutorial on customizing the installation path of MySQL 5.7.18 version (binary package installation)
Installation path: /application/mysql-5.7.18 1. P...
Detailed explanation of Vue filter implementation and application scenarios
1. Brief Introduction Vue.js allows you to define...
Implementation of adding visit count function in github+Jekyll blog in one minute with JS
Table of contents Add traffic function to github+...
GET POST Differences
1. Get is used to obtain data from the server, wh...
Detailed steps for building a React application with a Rails API
Table of contents Backend: Rails API part Front-e...
Nest.js hashing and encryption example detailed explanation
0x0 Introduction First of all, what is a hash alg...
Example code for configuring monitoring items and aggregated graphics in Zabbix
1. Install Zabbix Agent to monitor the local mach...
jQuery achieves full screen scrolling effect
This article example shares the specific code of ...
Detailed process of NTP server configuration under Linux
Table of contents 1. Environment Configuration 1....
Linux method example to view all information of the process
There is a task process on the server. When we us...
Design theory: Why are we looking in the wrong place?
I took the bus to work a few days ago. Based on m...