Hi
Itamar S.-T. wrote:
>
> Compiling the following example program:
> #include <math.h>
>
> int main(void) {
> double x = sqrt(2.0);
> return 1;
> }
>
> Gives me the following error:
> [itamar@porthos hashtest]$ gcc math.c
> /tmp/cc1Mfpzc.o: In function `main':
> /tmp/cc1Mfpzc.o(.text+0xe): undefined reference to `sqrt'
> collect2: ld returned 1 exit status
You need to link it with libm, e.g.
gcc file.c -lm
(or better gcc -c file.c; gcc file.o -lm)
>
> What is the problem here? I'm getting such an error any time I try to use
> functions from math.h. This is RH6 (glibc 2.1, egcs 1.1.2).
This is really an FAQ, look for any C book (or GCC FAQ, or whatever).
>
> --
> Itamar - [EMAIL PROTECTED]
>
> =================================================================
> To unsubscribe, send mail to [EMAIL PROTECTED] with
> the word "unsubscribe" in the message body, e.g., run the command
> echo unsubscribe | mail [EMAIL PROTECTED]
>
didi
=================================================================
To unsubscribe, send mail to [EMAIL PROTECTED] with
the word "unsubscribe" in the message body, e.g., run the command
echo unsubscribe | mail [EMAIL PROTECTED]
