You must tell ld to link whth libm.so (or .a).
So try gcc -lm ...
On Mon, 8 Jun 1998, Bernd Antweiler wrote:
> Hello all together!
>
> I am programming in C under Linux with Gnu-C-Compiler and xwpe frontend (X-
> desktop). My program is nearly finished, everything has worked fine until yet. Now I
> have tried to use some mathematical functions like pow(x,y), sin(x), etc..
> #include <math.h> at the top of the C-file let me compile the file, but on starting
>or
> debugging the project an "undefined reference"-error appears. Only the fabs(x) -
> order of this library seems to work!
> I find the <math.h> file in the /usr/include directory and this directory is
>declared
> under compiler options and the project options, too.
> Is there any idea to solve the problem? I use the Suse-distribution and my Linux
> knowledge is not so good, because it was not needed by this comfortably
> distribution.
> Maybe a file is lost? Which file?
>
> Thanks for your attention.
>
> Bernd Antweiler
> [EMAIL PROTECTED]
>
>
