How to turn off Glibc run-time protections?

Question

I am trying to learn about code vulnerabilities, and am testing some simple programs I wrote. However, many of the issues Glibc catches during runtime (e.g. Stack-Smashing,

Answer 1

You should at least be able to turn off stack protection with

-fno-stack-protector

at compiletime

Edit: sorry, have just seen that this isn't enough for you

Doesn't seem to be easy because glibc is global for all programs, so it would be pretty bad if you could turn the protection off. My proposal would be to install an old linux distribution that has no heap protection (mid 2003 or earlier should work).