Re: pkg/36841: emulators/netbsd32_compat30-extras installation errors

["Johnny C. Lam" <jlam%pkgsrc.org@localhost>]

On Sun, Aug 26, 2007 at 08:50:00AM +0000, juan%xtrarom.org@localhost wrote:
> 
>       I wanted to install the new netbsd32_compat30 pkg, but
>       netbsd32_compat30-extras installation is incomplete...
>       here's the full build log. Let me know if you need something more.
> 
[snip]
> => Registering installation for netbsd32_compat30-extras
> pkg_admin: netbsd32_compat30-extras: File 
> `/usr/pkg/emul/netbsd32/usr/lib/libm387.so' is in +CONTENTS but not on 
> filesystem!
> pkg_admin: netbsd32_compat30-extras: File 
> `/usr/pkg/emul/netbsd32/usr/lib/libm387.so.0' is in +CONTENTS but not on 
> filesystem!
> pkg_admin: netbsd32_compat30-extras: File 
> `/usr/pkg/emul/netbsd32/usr/lib/libm387.so.0.0' is in +CONTENTS but not on 
> filesystem!
[snip]
> => Checking file-check results for netbsd32_compat30-extras
> => Checking file permissions in netbsd32_compat30-extras
> warning: /usr/pkg/emul/netbsd32/usr/libexec/ld.so: executable bit is set on 
> non-executable file.
> 0 errors and 1 warnings.
> => Checking for work-directory references in netbsd32_compat30-extras
> => Dropping ``root'' privileges.

I saw this too with some other packages, and I felt it was okay.
These are due to a bug in pkg_admin because, for example, in your
output above, the symlink:

    /usr/pkg/emul/netbsd32/usr/lib/libm387.so

definitely exists on the filesystem.  It just happens that it's an
"emul" symlink, which points to "/lib/libm387.so", which gets mapped
to /usr/pkg/emul/netbsd/lib/libm387.so by the COMPAT_NETBSD32 emulation
code.  Unfortunately, pkg_admin tries to verify the existence of the
target of the symlink instead of the existence of the symlink itself,
and when it doesn't see "/lib/libm387.so", which shouldn't exist on
your amd64 system, it spouts that warning.

We can do one of the following:

    (1) Leave the warning, which doesn't break anything.
    (2) Teach pkg_admin not to follow symlinks.
    (3) Ignore the output of pkg_admin.

I would like to do (2), and maybe change that warning to say:

    pkg_admin: Target of symlink "/usr/pkg/emul/netbsd32/foo" may not exist.

so that the warning doesn't sound quite so alarming.

        Thoughts?

        -- Johnny Lam <jlam%pkgsrc.org@localhost>