Where is my make.defaults by xsi

Where is the make.defaults file located?
The make.defaults file is located in your profile.

Where is your profile stored?
Your profile is stored in the /usr/portage/profiles directory.

What values do profiles set many USE flags to?
The values that profiles set many USE flags to are good, default values for a particular purpose.

How do you override the defaults that are set by the profile?
To override the defaults that are set by the profile, write the settings to /etc/portage/make.conf or /etc/portage/package.use.

Is there a single make.defaults file that's used by Portage?
No, there isn't a single make.defaults file that's used by Portage.

What's the best place to go to learn more about Portage?
The best place to go to learn more about Portage is the Gentoo Package Manager Specification (PMS).

What package contains the Gentoo Package Manager Specification (PMS)?
The package that contains the Gentoo PMS is app-doc/pms.

What type of document is the Gentoo Package Manager Specification (PMS)?
The Gentoo PMS is a rigorous technical specification that package maintainers can rely on.

What are two easy ways to see what a profile does?
Two easy ways to see what a profile does are by running:

  • emerge --info.
  • emerge -epv world.