2.4.0-test10-pre6: Use of abs()

From: Horst von Brand (vonbrand@sleipnir.valparaiso.cl)
Date: Sat Oct 28 2000 - 12:29:36 EDT

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    Red Hat 7.0, i686, gcc-20001027 (Yes, I know. Just to flush out bugs on
    both sides).

    abs() is used at least in:

    arch/i386/kernel/time.c
    drivers/md/raid1.c
    drivers/sound/sb_ess.c

    gcc warns about use of a non-declared function each time.

    No definition for the function is to be found (grep over all include/ comes
    up clean, except for extern definitions in asm-{mips,ppc}; ditto for lib/).
    Presumably gcc is using a builtin (it doesn't show up in System.map). Is
    this the desired state of affairs? Should a include/linux/stdlib.h be
    added, containing (for now, to be expanded later as needed, like
    include/linux/stddef.h):

    #ifndef _LINUX_STDLIB_H
    #define _LINUX_STDLIB_H

    extern int abs(int);

    #endif 

    -- 
Horst von Brand                             vonbrand@sleipnir.valparaiso.cl
Casilla 9G, Vin~a del Mar, Chile                               +56 32 672616
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