This is where I put mixed code experiments.
Mostly in functional programming. And stuff...
How to see where gcc loads linked C libaries from:
gcc -print-prog-name=cc1` -v
gcc -lSOMETHING means load libary "libSOMETHING"
and not load executable SOMETHING...
gcc -lexif loads C library exif.
gcc -I (capital i) "some library" includes it