Trouble pulling in libm

[Andrei Chichak]

Check the commands that are being sent to gcc and the linker to make sure that the -lm is being passed through properly.

It took me a heck of a long time to figure out exactly where to put the linker commands so that they actually got used. Mine is in my makefile.am and looks like:

init_LDADD = -lm -ltelnetd

Your milage will vary though, I'm using a different setup from Chris Johns that just works.

Andrei


On 2011-January-13, at 6:24 PM, John Wood wrote:

> Clarification.
> 
> The code I wrote was in a file that I had added to rtems as a helper to a driver for calculating some coefficients.
> It appears if the code is in my app it links but not if it is in the rtems code.
> 
> Thanks,
> John
> 
> -----Original Message-----
> From: rtems-users-bounces at rtems.org [mailto:rtems-users-bounces at rtems.org] On Behalf Of John Wood
> Sent: Thursday, January 13, 2011 8:16 PM
> To: rtems-users at rtems.org
> Subject: Trouble pulling in libm
> 
> Greetings all,
> 
> I am using rtems 4.9.2 on a Virtex 4 device with uses the 403 cpu.  I have written a some code that needs some of the libm functions but I get a linker error even with -lm passed to the linker.  I do not get an error indicating the library is not found.
> 
> Any suggestions?
> 
> Thanks,
> John
> 
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