The GNU C Compiler
José Dapena Paz

The GNU C Compiler
Tutorial based on this book:
An introduction to GCC
for the GNU Compilers gcc and g++
Brian Gough
This is available on network. More information
on:
http://www.network-theory.co.uk/gcc/intro/

Goals of this tutorial
● Understand how to compile a program.
● Use basic compiler options for optimisation and
debugging.

Compiling a C program
Compiling a C program:
$ gcc -Wall hello.c -o hello
Recommendation: use always -Wall:
● Nested comments
● Incorrect printf/scanf formats
● Unused variables
● Usage of implicit (non-declared) functions
● Function return types.
● Other checks... (see GCC reference manual).