#include <> vs #include ""

#include <stdio.h>

When the include file is in brackets the preprocessor,

1. first searches in paths specified via the -I flag. 
2. Then it searches the standard include paths (see the above link, and use the -v flag to test on your system).

#include "myFile.h"

When the include file is in quotes the preprocessor,

1. first searches in the current directory, 
2. then paths specified by -iquote, 
3. then -I paths, 
4. then the standard paths.