[SOLVED] How to uncomment the CFLAGS and CXXFLAGS lines in your /etc/make.conf file

Fresh install I was going through the Document 2.11 System optimization and I could not find anywhere how to change the variables or how to edit a config protected file. I’ve spent 3 hours looking through all the Document manuals and haven’t been able to figure this out. Thank You

2.11 System optimization:

Improving system performance
Calculate Linux distributions are built with compiler flags allowing to run the system on all 32bit and 64bit compatible processors. You can adjust these settings, thus improving performance for new packages: just uncomment the CFLAGS and CXXFLAGS lines in your /etc/make.conf file:
CFLAGS="-O2 -march=native -pipe"

Hello John,

Just edit the /etc/portage/make.conf/custom file: you can add any flag you need (including CFLAGS and CXXFLAGS).

Hope this helps.
Elena | Flor_de_azucena

As I am new to Linux and this is my only my second distro install ever in one month I am an IDIOT I was not logged in as root sorry Thank You for your help.