On Sun, 23 Sep 2007 13:56:24 +0200
Frank Lichtenheld <djpig@debian.org> wrote:
> On Tue, Aug 28, 2007 at 09:39:40PM +0100, Neil Williams wrote:
> > The /usr/share/dpkg-cross/buildcross file is part of dpkg-cross 1.99
> > +2.0.0pre2 which is due to be uploaded to experimental just after pre1
> > leaves NEW.
> [...]
> > --- dpkg.old/scripts/dpkg-buildpackage.sh 2007-08-27 23:23:28.000000000 +0100
> > +++ dpkg-1.14.5/scripts/dpkg-buildpackage.sh 2007-08-28 20:06:39.000000000 +0100
> > @@ -84,6 +84,18 @@
> > passopts=''
> > admindir=''
> >
> > +DPKGCROSSENABLE=0
> > +if [ -f /usr/share/dpkg-cross/buildcross ]; then
> > + . /usr/share/dpkg-cross/buildcross
> > + DPKGCROSSENABLE=1
> > +fi
> > +
> > +function enhance_cross {
> > + if [ $DPKGCROSSENABLE -gt 0 ]; then
> > + setup_cross
> > + fi
> > +}
> > +
>
> Just to make your life harder ;) I've now decided to convert
> dpkg-buildpackage to a Perl script (see head of master branch
> in git). Therefor this part of the patch doesn't apply anymore.
It isn't a problem - this is a workaround patch. Guillem doesn't want
the external lookup involved in the workaround, he wants an internal
solution. The perl version simply needs to implement the functionality
of setup_cross which, in turn, needs to setup and use a directory of
symlinks that are only in the PATH when cross-compiling and which allow
the command line paths passed to the cross-compiler to be manipulated
in real time to set the actual location of the cross header and -dev
package contents.
$args =~ s,/usr/include/,/usr/$arch_type/include/;
where $arch_type is "arm-linux-gnu", for example, retrieved from
dpkg-architecture (which in turn is set by the -a switch).
That functionality is available as gccross in the dpkg-cross source at
the moment and could be implemented that way in dpkg -
dpkg-buildpackage just needs to setup the PATH to put the directory
containing gccross first.
http://alioth.debian.org/plugins/scmcvs/cvsweb.php/dpkg-cross/buildcross?rev=1.1;content-type=text%2Fplain;cvsroot=dpkg-cross
--
Neil Williams
=============
http://www.data-freedom.org/
http://www.nosoftwarepatents.com/
http://www.linux.codehelp.co.uk/
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