Upgrading GCC

Check the GCC version.
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gcc --version
Determine whether an upgrade is required.
- If the GCC version is 8.3.0 or later, skip this section.
- If the GCC version is earlier than 8.3.0, upgrade it to 8.3.0 or later. For details, see Obtaining the Source Package and Compiling and Installing GCC.

Obtain the GCC 8.3.0 source package.
Download the GCC 8.3.0 source package using a local browser.

Copy the GCC source package to the /home directory on the server.

If the server can access the Internet, you can also run the wget command on the server to download the source code.

          
               cd /home
wget https://mirrors.tuna.tsinghua.edu.cn/gnu/gcc/gcc-8.3.0/gcc-8.3.0.tar.gz --no-check-certificate

Decompress the GCC source package in the directory where the source package is located.
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cd /home tar -xvf gcc-8.3.0.tar.gz
Go to the source code directory.
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cd gcc-8.3.0

Configure GCC.

        
             ./configure --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --enable-bootstrap

Table 1 describes the related parameters.

**Table 1** Parameter description
Parameter	Description
--prefix=PATH	Specifies the GCC installation directory. The default directory is /usr.
--mandir=PATH	Specifies the directory for storing GCC files. The default directory is /usr/share/man.
--infodir=PATH	Specifies the directory for storing GCC logs. The default directory is /usr/share/info.
--enable-bootstrap	Enables bootstrap installation.

Parent topic: Configuring the Compilation Environment