1. Home
  2. Embedded Linux
  3. SuperH Linux Math library

SuperH Linux Math library

Hi all,

I'm trying to compile a small program (IIR oscillator) and want to use atan, cos and sin functions including the math.h library. The compiler doesn't complain about not finding the math.h file, indeed he finds it.

But:

he@so:~/codec$ sh3-linux-gcc -I /usr/sh3-linux/include codec.c /tmp/ccUqutnQ.o: In function `main': /tmp/ccUqutnQ.o(.text+0x180): undefined reference to `atan' /tmp/ccUqutnQ.o(.text+0x19c): undefined reference to `cos' /tmp/ccUqutnQ.o(.text+0x1a0): undefined reference to `sin' collect2: ld returned 1 exit status

What's wrong?

Thank you.

Ivan.

Reply to
Ivan Wagner
Loading thread data ...

you need -lm in your build command line to tell the linker to use the math library.

Reply to
Tim Keck

Oh yeah you're right... It's long time since I did this last time...

;)

Thank you,

Ivan.

Tim Keck wrote:

Reply to
Ivan Wagner

ElectronDepot website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.