Re: Makefile, libs and linkage

[Dan Kegel <dank at kegel dot com>]

chuck wrote:
> I'm trying to compile HEYU, a Unix/Linux program that talks to
> a CM11-A interface ( the infamous ) X-10 controlers.  I have
> .../crosstool/arm-linux/gcc-3.3.4-glibc-2.3.2 that came with the
> ARM-9 SBC. ------------
> Make & Makefiles - I've searched the web - found squat.  Any words?
> -------------
> By using .../bin/arm-linux-gcc I've been able to do "-c [files].c" and now
> I have 10 dot-O files and when I try gcc file1.o file2.o..... I get:
>    sun.o(.text+0x164): In function `suntimes':
>    : undefined reference to `sin'

Try adding -lm to the commandline.  The sin and cos routines
are in the math library.

(Which brand and model of SBC is it, by the way?)
- Dan


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