[vox-tech] math.h advice?

[vox-tech@lists.lugod.org]

On Mon, Jul 08, 2002 at 06:19:23PM -0700, Alexandra Thorn wrote:
> RedHat 7.2.somethingeruther machine.  I'd like to be able to use functions
> like sin, cos, and round, but gcc does not seem to be recognizing them,
> even though I've #included <math.h>.

Alex,

  Add "-lm" to your gcc link line... that asks gcc to link in the math 
library.  "-l" says link in the following library "m" is the name of the
math library.

  So "gcc -o run_me infile.c -lm" should produce a run_me...

  If not please paste the error messages you see.

    Good Luck,
      Mike