On 2010-09-29, David Jardine <david@jardine.de> wrote:
> On Wed, Sep 29, 2010 at 06:46:20PM +0100, abdelkader belahcene wrote:
>> hi,
>> by default I have to add option -lm to the command gcc -lm file.c
>> when I use math functions. Where can I configure gcc to add it to the
>> default gcc, after what I don't need the option -lm , just gcc file.c
>> thanks for help
>>
>
> You could add
>
> alias gcc='gcc -lm ' (note the last space)

What's the significance of the last space?

>
> to /etc/profile

<nitpick>
I would put the alias definition in /etc/bash.bashrc or ~/.bashrc
instead. It's a shell customisation, not an environment modification.
</nitpick>

--
Liam O'Toole
Cork, Ireland



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On Thu, Sep 30, 2010 at 08:41:46AM +0000, Liam O'Toole wrote:
> On 2010-09-29, David Jardine <david@jardine.de> wrote:
> > [...]
> > You could add
> >
> > alias gcc='gcc -lm ' (note the last space)
>
> What's the significance of the last space?
>
> >

This, as far as I remember, allows the user to continue the command on
the command line.

> > to /etc/profile
>
> <nitpick>
> I would put the alias definition in /etc/bash.bashrc or ~/.bashrc
> instead. It's a shell customisation, not an environment modification.
> </nitpick>
>

I'm sure you're right.

Cheers,
David


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