Disable make builtin rules and variables from inside the make file

Question

I want to disable builtin rules and variables as per passing the -r and -R options to GNU make, from inside the make file. Other solutions that allow me to do this implicitl

Answer 1

https://www.gnu.org/software/make/manual/make.html#Canceling-Rules

# Disable built-in rules and variables
MAKEFLAGS += --no-builtin-rules
MAKEFLAGS += --no-builtin-variables

# Makefile begins
main: main.c
    cc main.c -o main