string.h conflicting types warnings

Matt Porter mporter at
Sat Aug 21 08:30:31 EST 1999

On Fri, 20 Aug 1999, Daniel Jacobowitz wrote:
> On Thu, Aug 19, 1999 at 02:12:33PM -0700, Matt Porter wrote:
> > I'm working on a standalone driver and have been running into these
> > warnings lately.  Whilst compiling Mac-on-Linux I also got these
> > warnings as well.  Searching around I only found some netbsd folks
> > gettings these same warnings.  Anyone have an idea where this comes from? 
> > /usr/include/linux/string.h:31: warning: conflicting types for built-in
> > function `memset'
> Easy.  Anything that is including linux/string.h should be a module -
> otherwise it needs to rearrange its choice of include files.  Any
> module should use the settings from the kernel makefiles, which
> include:
>  -mmultiple -mstring -ffixed-r2 -fno-builtins
> It's that last one you really want.

That's it.   Only difference is that it is actually "-fno-builtin" for
anybody else reading this...  

Matt Porter                                       Motorola Computer Group
matt_porter at                           CIBU Linux Support

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