gcc

# To compile a file:
gcc file.c

# To compile a file with a custom output:
gcc -o file file.c

# debug symbols:
gcc -g

# debug with all symbols:
gcc -ggdb3

# To build for 64 bits:
gcc -m64

# Include the directory {/usr/include/myPersonnal/lib/} to the list of path for #include <....>
# With this option, no warning / error will be reported for the files in {/usr/include/myPersonnal/lib/}
gcc -isystem /usr/include/myPersonnal/lib/

# To build a GUI for windows (Mingw) (Will disable the term/console):
gcc -mwindows