Re: Simple c program won't compile

[Mark Phillips <mark@infoeng.flinders.edu.au>]

I've just solved my own problem.  Of course I needed to do

$ gcc thick.c -lm

It's been a while since I've used C.  Sorry for the silly question.

Cheers,

Mark.


Mark Phillips [mark@infoeng.flinders.edu.au] wrote:
> Hi,
> 
> The following program:
> 
> 
> #include <stdio.h>
> #include <math.h>
> 
> int main(int argv, char **argc){
>   double x;
> 
>   x=sqrt(5.0);
> }
> 
> 
> does not compile.  Instead I get the errors:
> 
> $ gcc thick.c
> /tmp/ccU9fgSr.o: In function `main':
> /tmp/ccU9fgSr.o(.text+0x16): undefined reference to `sqrt'
> collect2: ld returned 1 exit status
> 
> 
> What is wrong?
> 
> Thanks,
> 
> Mark.
> 
> -- 
> _/~~~~~~~~\___/~~~~~~\____________________________________________________
> ____/~~\_____/~~\__/~~\__________________________Mark_Phillips____________
> ____/~~\_____/~~\________________________________mark@ist.flinders.edu.au_
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> ____/~~\______/~~~~~~\____________________________________________________
> __________________________________________________________________________
>         "They told me I was gullible ... and I believed them!" 
> 

-- 
_/~~~~~~~~\___/~~~~~~\____________________________________________________
____/~~\_____/~~\__/~~\__________________________Mark_Phillips____________
____/~~\_____/~~\________________________________mark@ist.flinders.edu.au_
____/~~\HE___/~~\__/~~\APTAIN_____________________________________________
____/~~\______/~~~~~~\____________________________________________________
__________________________________________________________________________
        "They told me I was gullible ... and I believed them!"