Re: [PATCH] out-of-tree builds
From: Geert Uytterhoeven (geert_at_linux-m68k.org)
Date: 03/22/04
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Date: Mon, 22 Mar 2004 23:09:52 +0100 (MET) To: Kai Germaschewski <kai@germaschewski.name>, Sam Ravnborg <sam@ravnborg.org>
On Mon, 15 Mar 2004, Geert Uytterhoeven wrote:
> On Sun, 14 Mar 2004, Geert Uytterhoeven wrote:
> > Although I like the feature to build a kernel in a different directory a lot, I
> > don't like its syntax. I prefer to just have a build directory where I can run
> > `make whatever'.
> >
> > The following patch adds a configure script to the kernel. If you run
> >
> > /path/to/kernel/source/tree/configure
> >
> > it will create a Makefile in the current directory, after which you can just do
> > `make whatever', just like in the source directory.
>
> Unfortunately not everything works.
>
> E.g. I need to build usr/ with a different (newer) binutils, so when the build
> fails on assembling usr/initramfs_data.o, I used to do the following, which no
> longer works:
>
> | tux$ PATH=/usr/bin/:$PATH make usr/
> | make: `usr/' is up to date.
> | tux$
>
> I guess I need a catch-all .PHONY rule, but don't know how to implement it...
`info make' never hurts...
--- linux-2.6.x/Makefile.in.orig 2004-02-08 10:50:36.000000000 +0100
+++ linux-2.6.x/Makefile.in 2004-03-22 23:02:29.000000000 +0100
@@ -0,0 +1,12 @@
+
+srcdir = @srcdir@
+
+dstdir = $(shell pwd)
+
+all:
+ @$(MAKE) -C $(srcdir) O=$(dstdir)
+
+%: force
+ @$(MAKE) -C $(srcdir) O=$(dstdir) $@
+
+force: ;
--- linux-2.6.x/configure.orig 2004-02-08 10:50:36.000000000 +0100
+++ linux-2.6.x/configure 2004-03-15 10:27:00.000000000 +0100
@@ -0,0 +1,17 @@
+#!/bin/sh
+
+srcdir=$(dirname $0)
+dstdir=$(pwd)
+
+if [ $srcdir = . -o $srcdir = $dstdir ]; then
+ echo Building in Linux kernel source tree, nothing changed
+else
+ if [ -e Makefile ]; then
+ /bin/mv Makefile Makefile.bak
+ fi
+ echo '# Generated automatically from Makefile.in by configure.' > Makefile
+ /bin/sed -e s+@srcdir@+$srcdir+ < $srcdir/Makefile.in >> Makefile
+ echo Linux kernel source tree in directory $srcdir
+ echo Building in directory $dstdir
+fi
+
Gr{oetje,eeting}s,
Geert
-- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-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 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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- In reply to: Geert Uytterhoeven: "Re: [PATCH] out-of-tree builds"
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