Install GCC from source
In this post, we will go through the steps to install GCC.
In this post, we will go through the steps to install GCC from source on CentOS 7.
$ cat /etc/centos-release
CentOS Linux release 7.9.2009 (Core)
$ uname -r
5.7.12-1.el7.elrepo.x86_64
Download GCC source
$ curl -LO https://gcc.gnu.org/pub/gcc/releases/gcc-12.2.0/gcc-12.2.0.tar.gz
Untar the source file:
$ tar zxf gcc-12.2.0.tar.gz
Download the dependent libraries
$ cd gcc-12.2.0/
$ ./contrib/download_prerequisites
2023-02-01 00:41:01 URL:http://gcc.gnu.org/pub/gcc/infrastructure/gmp-6.2.1.tar.bz2 [2493916/2493916] -> "gmp-6.2.1.tar.bz2" [1]
2023-02-01 00:41:02 URL:http://gcc.gnu.org/pub/gcc/infrastructure/mpfr-4.1.0.tar.bz2 [1747243/1747243] -> "mpfr-4.1.0.tar.bz2" [1]
2023-02-01 00:41:03 URL:http://gcc.gnu.org/pub/gcc/infrastructure/mpc-1.2.1.tar.gz [838731/838731] -> "mpc-1.2.1.tar.gz" [1]
2023-02-01 00:41:04 URL:http://gcc.gnu.org/pub/gcc/infrastructure/isl-0.24.tar.bz2 [2261594/2261594] -> "isl-0.24.tar.bz2" [1]
gmp-6.2.1.tar.bz2: OK
mpfr-4.1.0.tar.bz2: OK
mpc-1.2.1.tar.gz: OK
isl-0.24.tar.bz2: OK
All prerequisites downloaded successfully.
Configure and compile the source
$ ./configure --enable-languages=c,c++ --disable-multilib
$ make -j$(nproc)
Install GCC
$ make install
Verify GCC version
$ gcc --version
gcc (GCC) 12.2.0
Write a "hello world" C program
$ vi hello.c
#include <stdio.h>
void main()
{
printf("Hello world!\n");
}
Compile and run the program
$ gcc -o hello hello.c
$ ./hello
Hello world!