Re: building kernel 2.0.x under potato

[Filip Van Raemdonck <mechanix@digibel.org>]

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On Sat, 25 Sep 1999, Herbert Xu wrote:

> > > 
> > > make bzImage HOSTCC=/usr/bin/egcs
> > 
> > Indeed it does. I was too busy looking for a way to do it in the
> > environment... Can one use this with make-kpkg as well?
> 
> Probably not, perhaps you can make a patch...
> -- 
Ok then.

I actually had to start learning perl for this but I guess it had to
happen once anyway, so...

You probably want to set the HOSTCC and CC variables in make-kpkg itself,
not in debian/rules (as I've done). That way they are passed on to every
target through ${MAKE} (and this is probably why setting on the
commandline works, while environment variables don't). I 've set them to
sane (?) defaults if CC and HOSTCC are not exported in the environment.
Also, dpkg --print-architecture (used in debian/rules) depends on gcc or
$CC, OTOH it produces an error if the word count of $CC > 1, so I passed
on $HOSTCC to it (which *should* be just the name of the compiler -maybe
you could add a check?).

Regards.

- ---------------------------------------------------------------------------
Filip Van Raemdonck
        mechanix@digibel.org

member of the fibo-systeam
        http://fibo.hogent.be | http://fibolite.hogent.be
- ---------------------------------------------------------------------------

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--- make-kpkg	Thu Aug 19 09:02:29 1999
+++ make-kpkg.bak	Mon Sep 27 21:38:58 1999
@@ -663,6 +663,21 @@
   elsif ($bzimage) {
     $command .= " IMAGE_TYPE=bzImage ";
   }
+
+  my $hostcc = $ENV{'HOSTCC'};
+  $hostcc .= " ";
+  if ($hostcc eq " ") { $hostcc = "gcc"; };
+
+  my $cc = $ENV{'CC'};
+  $cc .= " ";
+  if ($cc eq ' ') { $cc = $cross_compile; $cc .= "gcc "; };
+
+  $cc .= "-D__KERNEL__ -I";
+  chop($cc .= `pwd`);
+  $cc .= "/include";
+
+  $command .= " CC=\"$cc\" HOSTCC=\"$hostcc\"";
+
   $command .= " $Targets";
   exec $command; 
 }
--- rules	Sat Sep 25 16:07:05 1999
+++ rules.bak	Mon Sep 27 21:32:37 1999
@@ -67,7 +67,7 @@
     KERNEL_CROSS:=$(CROSS_COMPILE)-
   endif
 else
-  architecture:=$(shell dpkg --print-architecture)
+  architecture:=$(shell CC=$(HOSTCC) dpkg --print-architecture)
 endif
 
 KERNEL_ARCH:=$(architecture)