Thank you so much for your help, Rob!
 
Regards,
Jeff

---

> From: rob@mars.org
> To: mad-dev@lists.mars.org
> Date: Sun, 18 May 2008 19:40:12 -0700
> Subject: Re: [mad-dev] madplayer cross-compile on ARM11 compilation error "impossible constraint in 'asm'"
>
> On May 18, 2008, at 12:33 AM, Jianfeng Li wrote:
> > I am now trying to cross-compile the madplayer on an arm11 based
> > embedded system. The compiler I am using is from montavista
> > mobilinux 5.0.
> >
> > When I tried to build the madplay, for the file resample.c, I got 2
> > errors on line 89 and 104. The error information is "impossible
> > constraint in 'asm'. When I tried to build the libmad, I also met
> > the same error. But it seems that during compilation if "FPM-ARM"
> > option is enabled then the error is solved. But here I checked the
> > Makefile, there is no such option of "FPM" as in the Makefile of
> > libmad.
> >
> > So can anybody help to tell me why this error happens, it is due to
> > the compiler's constraint/requirement? How should I try to solve
> > this error? Is "trying to enable the FPM" a good option to try?
>
> Running the libmad `configure' script is the usual way to cause an
> appropriate FPM macro to be defined. You can force the selection using
> the --enable-fpm option (e.g. --enable-fpm=arm) in case the
> automatically chosen default is inappropriate for some reason.
>
> Note that the FPM selection is carried into the mad.h header file
> which is used by madplay et al. When cross-compiling, the resulting
> mad.h could be different from the build system's mad.h so it's
> important to check your include paths.
>
> --
> Rob Leslie
> rob@mars.org
>

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