C programming on Ubuntu
 

Which package do I need to install to get the standard library files for c programming?
Currently, not even
#include <stdio.h>
works. I thought the standard lib files automatically were added when installing the OS, but I guess I was wrong. :)

Yoou need to install the gcc compiler and the concerned libraries for C programs. You can search for them in the synaptic manager.

I've already installed the gcc compiler, but cannot find the concerned libraries. Any ideas?

When you installed gcc, the standard libraries should have been included as well. What commands are you running when you try to compile the program you have written?

My test program is as follows:

#include <stdio.h>

int main() {
printf("Hello!");
}


and I compile it with

gcc <filename>

I installed gcc using synaptic, but it seems as the libraries weren't installed by default.

Try the following
then run the program hello by doing

(I used "gcc <filename>" just as a test. I know that the binary file is then named "a.out")

Okay, I think I fixed it, but I don't know how. :)

I tried "gcc-4.0" instead of just "gcc", and then it compiled. I seems the libraries were installed after all. But what I don't understand
is WHY this worked. "gcc" and "gcc-4.0" is exactly the same, as far as I can tell: running "gcc --version" and "gcc-4.0 --version" displays the
exact same information. Anyways, now even "gcc <filename>" works. :)

I'll try and build a larger project, and see what happens.



Thanks for the help anyways!

hi,

i am also trying to compile a simple helloworld program. i have all the gcc things in the synaptic pakage manager installed. i open a termainal window and went to the directory where the helloworld.c program is. when i use gcc helloworld.c i get the following:
error: stdio.h: No such file or directory. i get the same error when i use $gcc -o helloworld helloworld.c

i am very new to linux and c.

Can anybody help me?

scobie

Try and execute "gcc-4.0 <source file>", maybe it works.

i dont know if it does the same thing but i compile using gcc as (an example of a program named and saved as hello.c) "gcc hello.c -o hello" than run it using "./hello"

Its the same thing. :)

ty reddazz i wasnt sure if the order things are in mattered i know some or most commands in termianl doesnt really matter.

sudo apt-get install build-essential

That should get you started.

Command line input are typically implemented as a switch-statement inside a while-loop, so the order of things does not matter.