linux_base-f8/Linux emulation notes

[Sean C. Farley]

Here are some general notes about linux_base-f8 and linux emulation
(mostly) in general.  Other than these notes, almost (see #7) all
appears to work for me with RELENG_7 (after latest commit today),
linux_base-f8 and compat.linux.osrelease=2.6.16.  Thank you.

1. I noticed that linux-glib conflicts at least with the glib20.mo files
    and glib2.sh.  Is linux-glib even needed if linux_base-f8 is
    installed?

Messages from acroread8:
rm: cannot remove `/home/sean/.adobe/Acrobat/8.0/Preferences/mozilla/prefs.js': Function not implemented

(acroread:76704): Gtk-WARNING **: Locale not supported by C library.
         Using the fallback 'C' locale.
Fontconfig error: "conf.d", line 1: not well-formed (invalid token)
Fontconfig error: "conf.d", line 1: not well-formed (invalid token)

(acroread:76704): Gdk-WARNING **: gdk_property_get(): length value has wrapped in calculation (did you pass G_MAXLONG?)

2. I am not sure what is throwing the "Function not implemented"
    message.  Running rm (FreeBSD or Linux binary) works.  The Linux
    binary works even if executed from with /compat/linux/bin/bash.

    I checked with ktrace -d and linux_kdump.  I do not see prefs.js
    mentioned, and the message does not show itself.  ENOSYS nor 38 was
    found in the dump.

3. What is missing to make glibc happy with locales (LANG=en_US.UTF-8)?

4. Is an update needed for some other linux port to fix the Gdk-WARNING?
    Do other linux-* ports need updating to more current versions?
    Currently, they are fc4-level.

5. The "Beyond Adobe Reader" window that acroread shows if not run
    with a file to load is blank.  According to this FAQ[1] #10 by Adobe,
    it could be a problem with gtkembedmoz (installed by the linux-nvu
    port).

6. Some Linux binaries try to print using /usr/bin/lp without success.
    I always install the following script to make them work:

/compat/linux/usr/bin/lp:
#!/bin/sh -
exec /usr/bin/lpr "$@"

7. I still get core dumps within a Linux chroot (fc2-based) using
    cmake[2].

Sean
   1. http://blogs.adobe.com/acroread/2007/09/adobe_reader_811_faqs.html
   2. http://lists.freebsd.org/pipermail/freebsd-emulation/2008-March/004535.html
-- 
scf at FreeBSD.org