linux-kernel - Re: [PATCH] m68k: Use cc-cross-prefix (was: Re: [GI:wqT PULL] kbuild updates

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Date:	Sun, 21 Oct 2007 20:29:29 +0200 (CEST)
From:	Geert Uytterhoeven <geert@...ux-m68k.org>
To:	Sam Ravnborg <sam@...nborg.org>
cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kbuild <linux-kbuild@...r.kernel.org>,
	linux arch <linux-arch@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Linux/m68k <linux-m68k@...r.kernel.org>,
	Rob Landley <rob@...dley.net>
Subject: Re: [PATCH] m68k: Use cc-cross-prefix (was: Re: [GI:wqT PULL] kbuild
 updates - second round)

On Sun, 21 Oct 2007, Sam Ravnborg wrote:
> On Sun, Oct 21, 2007 at 07:57:39PM +0200, Geert Uytterhoeven wrote:
> > On Fri, 19 Oct 2007, Sam Ravnborg wrote:
> > > The cc-cross-prefix is new and developed on request from Geert Uytterhoeven.
> > > With cc-cross-prefix it is now much easier to have a few default
> > > cross compile prefixes and defaulting to none - if none of them were present.
> > > ARCH maintainers are expected to pick up this feature soon.
> > 
> > Thanks, seems to work fine!
> > 
> > m68k: Use cc-cross-prefix
> > 
> > Signed-off-by: Geert Uytterhoeven <geert@...ux-m68k.org>
> > ---
> >  arch/m68k/Makefile |    8 +++-----
> >  1 file changed, 3 insertions(+), 5 deletions(-)
> > 
> > --- a/arch/m68k/Makefile
> > +++ b/arch/m68k/Makefile
> > @@ -13,16 +13,14 @@
> >  # Copyright (C) 1994 by Hamish Macdonald
> >  #
> >  
> > -# test for cross compiling
> > -COMPILE_ARCH = $(shell uname -m)
> > -
> >  # override top level makefile
> >  AS += -m68020
> >  LDFLAGS := -m m68kelf
> >  LDFLAGS_MODULE += -T $(srctree)/arch/m68k/kernel/module.lds
> >  ifneq ($(COMPILE_ARCH),$(ARCH))
> > -	# prefix for cross-compiling binaries
> > -	CROSS_COMPILE = m68k-linux-gnu-
> > +	ifeq ($(CROSS_COMPILE),)
> > +	       CROSS_COMPILE := $(call cc-cross-prefix, m68k-linux-gnu- m68k-linux-)
> > +	endif
> >  endif
> Patch seems bogus.
> You kill the assignment to COMPILE_ARCH yet you
> refer to it in the line:
> ifneq ($(COMPILE_ARCH),...
> 
> Did you mean to use $(SUBARCH) here?

Oops, indeed. Sorry, here's a new one...

m68k: Use cc-cross-prefix

Signed-off-by: Geert Uytterhoeven <geert@...ux-m68k.org>
---
 arch/m68k/Makefile |   10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

--- a/arch/m68k/Makefile
+++ b/arch/m68k/Makefile
@@ -13,16 +13,14 @@
 # Copyright (C) 1994 by Hamish Macdonald
 #
 
-# test for cross compiling
-COMPILE_ARCH = $(shell uname -m)
-
 # override top level makefile
 AS += -m68020
 LDFLAGS := -m m68kelf
 LDFLAGS_MODULE += -T $(srctree)/arch/m68k/kernel/module.lds
-ifneq ($(COMPILE_ARCH),$(ARCH))
-	# prefix for cross-compiling binaries
-	CROSS_COMPILE = m68k-linux-gnu-
+ifneq ($(SUB_ARCH),$(ARCH))
+	ifeq ($(CROSS_COMPILE),)
+	       CROSS_COMPILE := $(call cc-cross-prefix, m68k-linux-gnu- m68k-linux-)
+	endif
 endif
 
 ifdef CONFIG_SUN3

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
							    -- Linus Torvalds
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