Re: undefined reference to `ceil'

[Leith Stevens <leith@bu.edu>]

Jim,

On Linux you use -lm, but be careful if you are using Solaris, use 
-lmath to link to the math library.

Leith

Jim Watson wrote:
> Hi,
>
> i would appreciate some help to see if this test program is valid before i
> file a bug,
>
> thanks
>
> jim
>
> jim@sun:~/C$ gcc -o test_ceil test_ceil.c
> /tmp/ccwfWhXU.o(.text+0x1c): In function 
> ain':
> : undefined reference to eil'
> collect2: ld returned 1 exit status
>
> jim@sun:~/C$ cat test_ceil.c
> #include<math.h>
> int main(void)
> {
>         double cvalue;
>         cvalue = ceil((double)1);
> }
>
> jim@sun:~/C$ gcc --version
> gcc (GCC) 3.3.3 20040125 (prerelease) (Debian)