LSB wrapper library

[Andreas Jaeger <aj@suse.de>]

George asked me to look at the following task:
https://sourceforge.net/pm/task.php?func=detailtask&project_task_id=23709&group_id=1107&group_project_id=3049

Let me first tell you what I did.  I build glibc with the following
configure line:
/cvs/libc-lsb/configure --prefix=/opt/lsb --enable-add-ons --disable-profile --without-cvs

and created a configparms file in the build directory:
$ cat configparms 
slibdir=/lib/lsb
rtld-installed-name=ld-lsb.so.1
config-LDFLAGS = -Wl,-dynamic-linker=/lib/ld-lsb.so.1

make install installed all the libraries in the right place with the
exception of /lib/ld-lsb.so.1, I just had to add a link from
/lib/lsb/ld-2.2.3.so to /lib/ld-lsb.so.1.

This glibc setup should work in case that we fork.  But if we fork we
do need to fork *all* LSB libraries.

Everything seems to work fine, e.g.:
$ ldd /opt/lsb/bin/getconf 
        libc.so.6 => /lib/lsb/libc.so.6 (0x40019000)
        /lib/ld-lsb.so.1 => /lib/ld-lsb.so.1 (0x40000000)

IMO ld-lsb.so.1 should *not* look into /lib and /usr/lib, no library
should live there. We should keep the namespaces really separate.  

I used /opt/lsb (this can be changed) so that the lsb libs find their
config files and environment in a specified place.  If we fork, we
really need not only separate libs but also separate locale files and
gconv modules - everything that gets compiled can not be shared.
Certainly some files can be shared but let's keep it easy for now.

I don't really understand the comments in the task but think they
don't apply in this setup.  So what kind of problems do you see with
this?

Andreas
-- 
 Andreas Jaeger
  SuSE Labs aj@suse.de
   private aj@arthur.inka.de
    http://www.suse.de/~aj