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Re: gcc math functions



You also need to link with the math library libm.  Try adding -lm to your
gcc options.

As to why the math functions aren't in libc, I don't know.  It sounds like
a holdover from old Unix days.

-- 
Jaldhar H. Vyas <jaldhar@braincells.com>

On Tue, 4 Nov 1997, Christopher Judd wrote:

> 	I have a PC with debian 1.3.1 installed (my first linux 
> installation). When I try to use the  math functions (exp, pow, etc.) in
> gcc I get a message like:
> 
> 	/tmp/cca016941.o(.text+0x5f): undefined reference to `exp'
> 
> On other systems I have used the "include <math.h>" was sufficient.  Is 
> there an additional step necessary or is my installation incomplete in
> some way ?
> 
> -Chris
> 
> 
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