Re: emsetup bug

[Jim Heck <jsurf@heckheck.com>]

Actually there's another bug buried in those error messages that I ran 
across and was going to post about. 

You'll notice that it's also complaining about the inability to find 
gcc-0-arm-linux-gnu.  I think that's due to a bug in Tools.pm in the 
find_latest_gcc() routine.  I think the regular expression to extract 
the gcc version from the package name isn't quite right.  I show a diff 
below of how I fixed it.  Also, I had to hack the check_toolchains() 
routine to return "true", since I have installed, and am trying to use, 
a gcc-3.4 toolchain (for compatibility with a 2.4 kernel), and the 
check_toolchains() routine won't let me get away with that, since for 
'testing' suite, the latest toolchain is gcc-4.1.  I was thinking a way 
to deal with this would be to modify the check_toolchains() routine to 
accept a parameter and pass in a preferred version of a toolchain from 
the cross-compile conf file, with the default being "latest", which 
would cause the check_toolchain() routine to lookup the latest 
toolchain.  This would allow the user  to get the latest toochain by 
default but specify a different one if that is what they have 
installed.  I didn't, however, code any of that up yet as a proposed 
patch.  Does anybody think that would be a good idea?

-Jim Heck

androcross: /usr/share/perl5/Emdebian
$ diff Tools.pm Tools.pm.orig
130,133d129
<
< # JAH HACK
<       return "true";
<
150,152c146
< # JAH Fix bug
< #             if ($line =~ /gcc-([0-9\.\-]*)$/)
<               if ($line =~ /gcc-([0-9\.]*).*$/)
---
>               if ($line =~ /gcc-([0-9\.\-]*)$/)


Wookey wrote:
> If you run emsetup on a fresh system it fails with:
> E: Opening configuration file
> /home/wookey/.dpkg-cross/apt.conf-testing - ifstream::ifstream (2 No
> such file or directory)
> No packages found matching ???-0*.
> Dry run only.
> E: Opening configuration file
> /home/wookey/.dpkg-cross/apt.conf-testing - ifstream::ifstream (2 No
> such file or directory)
> W: Unable to locate package gcc-0-arm-linux-gnu
> E: Opening configuration file
> /home/wookey/.dpkg-cross/apt.conf-testing - ifstream::ifstream (2 No
> such file or directory)
> E: Opening configuration file
> /home/wookey/.dpkg-cross/apt.conf-testing - ifstream::ifstream (2 No
> such file or directory)
> Need to install an emdebian toolchain to build 'arm' on 'i386'.
>
> due to neither .dpkg-cross nor apt.conf-testing existing.
>
> I reckon the former should be fixed by something like :
> --- Tools.pm~   2007-01-30 00:06:40.000000000 +0000
> +++ Tools.pm    2007-02-01 02:51:00.000000000 +0000
> @@ -99,15 +99,15 @@
>  
>  sub get_dpkg_cross_dir()
>  {
> -       my $home = File::HomeDir->my_home;
> -       return "$home/.dpkg-cross";
> +       my $home = File::HomeDir->my_home;
> +        my $path =  "$home/.dpkg-cross";
> +        mkdir $path if (! -d $path);
> +        return $path;
>  }
>
> But I'm not quite sure where in that lot the creation of
> apt-conf.testing should be done, and my brain has shut down 'cos it's
> late. Somewhere round get_suite() when it determines the default suite
> using check_dist?
>
> Wookey
>