I'm learning c and am compiling all my programs using gcc in linux subsystem for windows.
I learned that I can include some flags by the gcc standards. Some include the basic -o or -lm. I discovered the -Wall flag and it has outputted some warnings in my shell that I fix.
Right now my usual gcc compilation line usually lies along the lines of cc -Wall -lm -o file.exe file.c.
I recently learned that there are a lot of other flags that can be included, some regarding warnings; one is -w, which is supposed to show even more warnings than -Wall, so my question is -
1- Should I always specify -w? or is there any drawbacks or maybe even incorrect issued warnings?
2- Also, what are the best practices when compiling a program, i.e., what options/flags do you always turn on?