Install GCC C/C++ Compilers

Linux Apps Tutorials - Herong's Tutorial Examples

∟Install GCC C/C++ Compilers

This section provides a tutorial example on how to install GCC C/C++ compiler on CentOS systems.

If you want develop your own C/C++, or compile third party C/C++ source code, you need install GCC C/C++ compilers as shown in this tutorial.

1. Install GCC C compiler:

herong$ dnf info gcc
Available Packages
Name         : gcc
Version      : 8.3.1
Release      : 4.5.el8
Architecture : x86_64
Size         : 23 M
Source       : gcc-8.3.1-4.5.el8.src.rpm
Repository   : AppStream
Summary      : Various compilers (C, C++, Objective-C, ...)
URL          : http://gcc.gnu.org
License      : GPLv3+ and GPLv3+ with exceptions and GPLv2+ with ...
Description  : The gcc package contains the GNU Compiler Collection
             : version 8. You'll need this package in order to compile
             : C code.

herong$ sudo dnf install gcc
...
Installed:
  gcc-8.3.1-4.5.el8.x86_64
  annobin-8.78-1.el8.x86_64
  cpp-8.3.1-4.5.el8.x86_64
  isl-0.16.1-6.el8.x86_64
  glibc-devel-2.28-72.el8.x86_64
  glibc-headers-2.28-72.el8.x86_64
  kernel-headers-4.18.0-147.5.1.el8_1.x86_64
  libxcrypt-devel-4.1.1-4.el8.x86_64

2. Verify GCC installation:

(cpp - The C preprocessor)
herong$ cpp --version
cpp (GCC) 8.3.1 20190507 (Red Hat 8.3.1-4)
Copyright (C) 2018 Free Software Foundation, Inc.

(gcc - The GNU project C compiler)
herong$ gcc --version
gcc (GCC) 8.3.1 20190507 (Red Hat 8.3.1-4)
Copyright (C) 2018 Free Software Foundation, Inc.

(cc - Alias of gcc)
herong$ ls -l /usr/bin/cc
lrwxrwxrwx. 1 root root 3 Nov  5 23:36 /usr/bin/cc -> gcc

3. Compile and run a C program, hello.c:

herong$ vi hello.c
#include<stdio.h>
int main(void) {
 printf("Hello world! - From C.\n");
 return 0;
}

herong$ gcc hello.c

herong$ ./a.out
Hello world! - From C.

4. Install GCC C++ compiler:

herong$ dnf info gcc-c++
Available Packages
Name         : gcc-c++
Version      : 8.3.1
Release      : 4.5.el8
Architecture : x86_64
Size         : 12 M
Source       : gcc-8.3.1-4.5.el8.src.rpm
Repository   : AppStream
Summary      : C++ support for GCC
URL          : http://gcc.gnu.org
License      : GPLv3+ and GPLv3+ with exceptions and GPLv2+ with ...
Description  : This package adds C++ support to the GNU Compiler
             : Collection. It includes support for most of the current 
             : C++ specification, including templates and exception 
             : handling.

herong$ sudo dnf install gcc-c++
...
Installed:
  gcc-c++-8.3.1-4.5.el8.x86_64
  libstdc++-devel-8.3.1-4.5.el8.x86_64

Complete!

5. Verify GCC installation:

(g++ - The GNU project C++ compiler)
herong$ gcc --version
g++ (GCC) 8.3.1 20190507 (Red Hat 8.3.1-4)
Copyright (C) 2018 Free Software Foundation, Inc.

6. Compile and run a C++ program, hello.c:

herong$ vi hello.cpp
#include "iostream"
int main(void) {
    std::cout <<  "Hello world! From C++.\n";
    return 0;
}

herong$ g++ hello.cpp

herong$ ./a.out
Hello world! From C++.