Ubuntu gcc: where are the headers?

Ian · External Since: Jun 03, 2007 Posts: 10

Folks, I think this may be a daft question, but ...

I seem to have gcc installed on my PC. Synaptic tells me it's there
and gcc <filename> does what I'd expect ... except that it won't
compile anything because it throws up an error at

#include <stdio.h>

and a search indicates that there is, indeed, no stdio.h installed
anywhere.

I've been writing in C for about 20 years, and I have never come
across a compiler without the standard libraries/header files. Help!

Ian

Ian · External Since: Jun 03, 2007 Posts: 10

On 3 Jun, 14:42, Ben Bacarisse <ben.use... RemoveThis @bsb.me.uk> wrote:
> Ian <ian.gro... RemoveThis @btinternet.com> writes:

> > and a search indicates that there is, indeed, no stdio.h installed
> > anywhere.
>
> On my Ubuntu 7.04:
>
> $ apt-file find /usr/include/stdio.h
> libc6-dev: usr/include/stdio.h
>
> Do you have libc6-dev installed?

I didn't, but I do know, and am happily Helloworlding like anything.

In my own defence, I still haven't worked out what category they have
stuck that in in Synaptic - I am sure I would have noticed it if it
was in "development" where gcc is ...

Many thanks,

Ian

Tweedale · External Since: Dec 08, 2005 Posts: 29

On 3 Jun 2007 at 13:12, Ian wrote:
> Folks, I think this may be a daft question, but ...
>
> I seem to have gcc installed on my PC. Synaptic tells me it's there
> and gcc <filename> does what I'd expect ... except that it won't
> compile anything because it throws up an error at
>
> #include <stdio.h>
>
> and a search indicates that there is, indeed, no stdio.h installed
> anywhere.

Try installing libc6-dev.

--
email: echo t.adllkhsl.RemoveThis@iypzavs.hj.br | tr a-gh-pq-z t-za-ij-s

Ben Bacarisse · External Since: Jun 10, 2005 Posts: 90

Ian <ian.groups.TakeThisOut@btinternet.com> writes:

> Folks, I think this may be a daft question, but ...
>
> I seem to have gcc installed on my PC. Synaptic tells me it's there
> and gcc <filename> does what I'd expect ... except that it won't
> compile anything because it throws up an error at
>
> #include <stdio.h>
>
> and a search indicates that there is, indeed, no stdio.h installed
> anywhere.

On my Ubuntu 7.04:

$ apt-file find /usr/include/stdio.h
libc6-dev: usr/include/stdio.h

Do you have libc6-dev installed?

--
Ben.

David Aldred · External Since: Mar 29, 2005 Posts: 51

Ian wrote:

> In my own defence, I still haven't worked out what category they have
> stuck that in in Synaptic - I am sure I would have noticed it if it
> was in "development" where gcc is ...

There's a metapackage which will install all that's needed for
compile/build - install 'build-essential' and you should be away.

--
David Aldred

badari · External Since: Jun 11, 2007 Posts: 1

On Jun 3, 6:12 pm, Ian <ian.gro... RemoveThis @btinternet.com> wrote:
> Folks, I think this may be a daft question, but ...
>
> I seem to have gcc installed on my PC. Synaptic tells me it's there
> and gcc <filename> does what I'd expect ... except that it won't
> compile anything because it throws up an error at
>
> #include <stdio.h>
>
> and a search indicates that there is, indeed, no stdio.h installed
> anywhere.
>
> I've been writing in C for about 20 years, and I have never come
> across a compiler without the standard libraries/header files. Help!
>
> Ian

Hi did you find any solution?
Yesterday I installed brand new 7.04 of Ubuntu and wrote the usual
hello world program.
Compiler could not find stdio.h I haven't checked libc6 instalation.
If you have found the solution please let me know

Ian · External Since: Jun 03, 2007 Posts: 10

On 11 Jun, 13:34, Robert Harris <robert.f.har....TakeThisOut@blueyonder.co.uk>
wrote:
> badari wrote:
> > On Jun 3, 6:12 pm, Ian <ian.gro....TakeThisOut@btinternet.com> wrote:
> >> Folks, I think this may be a daft question, but ...
>
> >> I seem to have gcc installed on my PC. Synaptic tells me it's there
> >> and gcc <filename> does what I'd expect ... except that it won't
> >> compile anything because it throws up an error at
>
> >> #include <stdio.h>
>
> >> and a search indicates that there is, indeed, no stdio.h installed
> >> anywhere.
>
> >> I've been writing in C for about 20 years, and I have never come
> >> across a compiler without the standard libraries/header files. Help!
>
> >> Ian
>
> > Hi did you find any solution?
> > Yesterday I installed brand new 7.04 of Ubuntu and wrote the usual
> > hello world program.
> > Compiler could not find stdio.h I haven't checked libc6 instalation.
> > If you have found the solution please let me know
>
> The headers are part of the C library. Try installing:
>
> libc6-dev

What I can't understand is why they bother to install gcc without the
headers. What use is that?

Ian

Robert Harris · External Since: Aug 14, 2005 Posts: 166

badari wrote:
> On Jun 3, 6:12 pm, Ian <ian.gro... RemoveThis @btinternet.com> wrote:
>> Folks, I think this may be a daft question, but ...
>>
>> I seem to have gcc installed on my PC. Synaptic tells me it's there
>> and gcc <filename> does what I'd expect ... except that it won't
>> compile anything because it throws up an error at
>>
>> #include <stdio.h>
>>
>> and a search indicates that there is, indeed, no stdio.h installed
>> anywhere.
>>
>> I've been writing in C for about 20 years, and I have never come
>> across a compiler without the standard libraries/header files. Help!
>>
>> Ian
>
> Hi did you find any solution?
> Yesterday I installed brand new 7.04 of Ubuntu and wrote the usual
> hello world program.
> Compiler could not find stdio.h I haven't checked libc6 instalation.
> If you have found the solution please let me know
>
The headers are part of the C library. Try installing:

libc6-dev

Robert

Nix · External Since: Jul 29, 2004 Posts: 680

On 11 Jun 2007, Ian spake thusly:
> What I can't understand is why they bother to install gcc without the
> headers. What use is that?

It's potentially useful for cross-compilation, and even without that,
for OS-less embedded development.

(But it's true that a compiler targetted at, say, i686-pc-linux-gnu
is useless without the headers for that target, so you'd expect a
dependency...)

--
`... in the sense that dragons logically follow evolution so they would
be able to wield metal.' --- Kenneth Eng's colourless green ideas sleep
furiously

Ian · External Since: Jun 03, 2007 Posts: 10

On 11 Jun, 20:55, Nix <nix-razor-....TakeThisOut@esperi.org.uk> wrote:
> On 11 Jun 2007, Ian spake thusly:
>
> > What I can't understand is why they bother to install gcc without the
> > headers. What use is that?
>
> It's potentially useful for cross-compilation, and even without that,
> for OS-less embedded development.

Indeed. But for how many people are those such fundamental uses of
Ubuntu that it's worth catering for them in the standard install. A
*nix without a C compiler is like a thing without another closely
related thing.

Ian

PS Have been in tedious meetings all day. Analogy generator a bit out
of sorts.

danh · Joined: Oct 29, 2007 Posts: 1

Thanks Ian for posting the question about where /usr/include/stdio.h is, and
for the replies to install libc6-dev.

That worked for me (after i was surprised to find out that there was no
/usr/include/stdio.h).

Now, Ben made a good suggestion to use apt-file to find what package
/usr/include/stdio.h is in.

As it happens, you do have to install apt-file first, but after i installed it,
and tried searching for /usr/include/stdio.h, it couldn't find it.

In fact, on my system, apt-file can't seem to find anything,
including apt-file itself. My version is 2.0.8.2, and it's a perl script.
(My system is very, very new, with only a few packages installed,
most recently libc6-dev, of course.)

If this rings a bell for anybody, please post, and thanks in advance.

dan

It_Lg · Joined: Nov 28, 2008 Posts: 1

Appreciate it. GOD Bless you.