What is the packet for unistd.h sys/types.h ?
 

I don't know how to install the libraries on an ubuntu. What are the packages i need to install ?

Hi spank.

unistd.h and types.h are part of the Linux kernel source. Try /usr/src/linux or www.kernel.org

Using synaptics is probably the easiest way. See this anyway: https://help.ubuntu.com/6.10/ubuntu/...lications.html

To do what? Please explain more....

Actually unistd.h etc. are user (libc) header files. not kernel headers. On my Debian Etch system (closest thing to Ubuntu I have easy access to), these are provided by the libc6-dev package.

I guess they are both:
/usr/src/linux/include/asm-*/unistd.h
/usr/src/linux/include/asm-*/types.h

In any event, it would seem that you are correct, as the OP is looking for a library...

From glibc:
/usr/include/sys/unistd.h
/usr/include/sys/types.h