# Re: compiling latest sane on PowerPC Linux

From: Major A (andras@users.sourceforge.net)
Date: Tue Jul 17 2001 - 05:16:39 PDT

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  Fred,

  > I've downloaded the lastest sane (1.0.5) or my PowerPC Linux
  > system. The systems is glibc 2.1.3 and kernel 2.4.6 debian
  > based. I get errors saying inb and outb are undefined.

  We had someone else on the list who had a very similar problem. You
  are running debian with a 2.4.x kernel (i.e. you built it yourself),
  and I have the same set-up (on i386 and alpha machines though).

  Note that a debian install has its own /usr/include/asm and
  /usr/include/linux directories, so if you build your own kernel, it
  might be worth replacing them by symbolic links to the two relevant
  directories in /usr/src/linux/include (I hope you keep your kernel
  source there).

  > A check through the kernl header files yields no definitions
  > except in one of the asm headers. Including the asm
  > header did not work so I suspect the problem was at
  > the linker stage.

  Is it the ld command that complains? If so, you have the same problem
  as that other user (can't remember their name).

  > Doesn't inb and outb have something to do with the ISA bus?
  > My PowerPC machine has no ISA bus.

  It has to do with the stupid I/O handling on i386 machines. If you ask
  me, it should not really be needed for any other architecture. Maybe
  it just makes writing cross-platform stuff easier to keep it for all
  platforms.

  Hope this helps, any corrections are welcome.

  Andras

  ===========================================================================
  Major András
  e-mail: andras@users.sourceforge.net
  www: http://andras.webhop.org/
  ===========================================================================

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