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It is possible to add build configuration files snippets which can change build variables.
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<u>Build Configuration Folders</u>:

You can drop configuration file either in:

# <code>buildconfig.d</code> or in
# <code>/etc/buildconfig-dist.d</code>
# <code>../buildconfig.d</code> folder.

Files should have the file extension <code>.conf</code></code>.

Method 2. is recommended for users.

# Contains examples. It is more difficult to use. <ref>
Since you would have to either:

* A) git commit your build config files, OR,
* B) See chapter source code changes below.
</ref> Rather use the following.
# <code>sudo mkdir --parents /etc/buildconfig-dist.d</code>
# When <code>/home/user/{{project_name_short}}</code> is your {{project_name_short}} source folder, you could use <code>/home/user/buildconfig.d</code> as your {{project_name_short}} build configuration folder. It is easier to use, since you don't have to git commit your build config files.

<ref>This is because <code>..</code> means "one level below this folder".</ref>

Below is an example how to use method 2.

{{CodeSelect|code=
sudo mkdir /etc/buildconfig-dist.d
}}

{{Open_with_root_rights|
filename=/etc/buildconfig-dist.d/50_user.conf
}}

Add. (Replace it with whatever build configuration variable you wish to set.)

Example 1.

{{CodeSelect|code=
export DERIVATIVE_APT_REPOSITORY_OPTS='--enable --repository stable'
}}

Example 2.

{{CodeSelect|code=
export tbb_version=13.0.1
}}

Save.

Done.
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