![\"How](\"https:\/\/webhostinggeeks.com\/howto\/wp-content\/uploads\/2023\/10\/How-to-Downgrade-GCC-Version-on-Ubuntu-1024x878.jpg\")
<\/p>\n<\/p>\n
The GNU Compiler Collection (GCC) is a set of compilers produced for various programming languages. It’s a crucial component for developers and system administrators.<\/p>\n
Sometimes, after upgrading GCC, you might encounter compatibility issues with certain applications or libraries. In such cases, downgrading GCC to a previous version can be a solution.<\/p>\n
This guide will walk you through the steps to downgrade GCC on an Ubuntu<\/a> system.<\/p>\n Before proceeding with the downgrade, it’s essential to know the current version of GCC installed on your system. Use the following command:<\/p>\n This command will display the current GCC version. Make a note of it, as you might need to refer back to it later.<\/p>\n To determine which versions of GCC are available for installation, use the following command:<\/p>\n This will provide a list of GCC versions available in the repositories. Identify the version you wish to downgrade to.<\/p>\n Once you’ve identified the version you want, install it using the following command, replacing [version_number] with your desired version:<\/p>\n For instance, to install GCC version 7:<\/p>\n Ubuntu uses the update-alternatives system to maintain multiple versions of a program. To set the newly installed GCC version as the default, use:<\/p>\n Replace [version_number] with your desired version and [priority] with a number (higher numbers take precedence).<\/p>\n Now, configure the system to use the desired GCC version by default:<\/p>\n You’ll be presented with a list of installed GCC versions. Select the one you want to set as default.<\/p>\n Why might I need to downgrade GCC?<\/p>\n \n Downgrading GCC might be necessary due to compatibility issues with certain applications, libraries, or development environments that are not yet adapted to the newer GCC versions.<\/span>\n <\/p>\n<\/li>\n Is it safe to have multiple GCC versions on Ubuntu?<\/p>\n \n Yes, Ubuntu allows for multiple GCC versions to coexist. However, only one version can be set as the default at a time.<\/span>\n <\/p>\n<\/li>\n How do I revert to the original GCC version?<\/p>\n \n To revert, use the “sudo update-alternatives –config gcc” command and select the original version from the list presented.<\/span>\n <\/p>\n<\/li>\n Can downgrading GCC affect system stability?<\/p>\n \n While GCC itself is stable, downgrading might affect applications that rely on features or fixes introduced in newer versions. Always test in a controlled environment before making changes to a production system.<\/span>\n <\/p>\n<\/li>\n Where can I find documentation for different GCC versions?<\/p>\n \n The official GCC website provides comprehensive documentation for all its versions. It’s advisable to refer to it when switching between versions to understand any changes or deprecations.<\/span>\n <\/p>\n<\/li>\n<\/ol>\n Downgrading GCC on Ubuntu is a straightforward process, but it’s essential to understand the reasons and implications of doing so. Whether you’re working on a dedicated server<\/a> or a VPS hosting<\/a>, ensuring that you have the right GCC version can be crucial for your applications and development environment.<\/p>\n Always remember to backup your system and test any changes in a controlled environment before applying them to a live system. <\/p>\n By following the steps outlined in this guide, you can successfully downgrade GCC and ensure compatibility with your required applications and libraries.<\/p>\n","protected":false},"excerpt":{"rendered":" The GNU Compiler Collection (GCC) is a set of compilers produced for various programming languages. It’s a crucial component for developers and system administrators. Sometimes, after upgrading GCC, you might…<\/p>\n","protected":false},"author":6,"featured_media":20173,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"wds_primary_category":0,"footnotes":""},"categories":[1073],"tags":[1397,1856],"class_list":["post-20172","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ubuntu","tag-gcc","tag-ubuntu"],"_links":{"self":[{"href":"https:\/\/webhostinggeeks.com\/howto\/wp-json\/wp\/v2\/posts\/20172","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/webhostinggeeks.com\/howto\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/webhostinggeeks.com\/howto\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/webhostinggeeks.com\/howto\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/webhostinggeeks.com\/howto\/wp-json\/wp\/v2\/comments?post=20172"}],"version-history":[{"count":0,"href":"https:\/\/webhostinggeeks.com\/howto\/wp-json\/wp\/v2\/posts\/20172\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/webhostinggeeks.com\/howto\/wp-json\/wp\/v2\/media\/20173"}],"wp:attachment":[{"href":"https:\/\/webhostinggeeks.com\/howto\/wp-json\/wp\/v2\/media?parent=20172"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/webhostinggeeks.com\/howto\/wp-json\/wp\/v2\/categories?post=20172"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/webhostinggeeks.com\/howto\/wp-json\/wp\/v2\/tags?post=20172"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}Step 1: Check the Current GCC Version<\/h2>\n
\r\ngcc --version\r\n<\/pre>\n
Step 2: List Available GCC Versions<\/h2>\n
\r\napt-cache show gcc | grep Version\r\n<\/pre>\n
Step 3: Install the Desired GCC Version<\/h2>\n
\r\nsudo apt-get install gcc-[version_number]\r\n<\/pre>\n
\r\nsudo apt-get install gcc-7\r\n<\/pre>\n
Step 4: Update Alternatives<\/h2>\n
\r\nsudo update-alternatives --install \/usr\/bin\/gcc gcc \/usr\/bin\/gcc-[version_number] [priority]\r\n<\/pre>\n
Step 5: Configure the Default GCC Version<\/h2>\n
\r\nsudo update-alternatives --config gcc\r\n<\/pre>\n
Commands Mentioned<\/h2>\n
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FAQ<\/h2>\n
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Conclusion<\/h2>\n