[uClibc]Uclibc libraries...

[Erik Andersen]

On Mon May 07, 2001 at 09:24:29AM -0400, Tom Cameron wrote:
> Hello all,
> 	I just recently grabbed the latest CVS of uClibc, and compiled
> everything against it (tinylogin, BusyBox, etc.).  But when I tried to
> install it all on my target system, I noticed that uClibc installs to
> /usr/i386-blah-blah-blah/*.  I looked in the Makefile, but didn't notice
> anything that would install JUST the libraries in a specified path (I
> already had to specify my development path).  Additionally, it installed a
> TON of other stuff (the compiler, etc.).  My question is, HOW IN THE WORLD
> DO I MAKE IT INSTALL _LIBRARIES_ TO MY /{development_path}/lib ?!?!  For now
> I have made a TON of symlinks...but I do NOT want to use that as a final
> solution.  As a foot note...I don't mind placing these libraries in my main
> system's /lib directory, as long as they don't conflict with anything
> already in there.

For a simple example of how to do this, Mark Whitley recently checked a
bootfloppy directory into busybox, which we worked on to demo exactly how to
make a bootable system.  It creates a shared uClibc + busybox boot floppy (in
essence, it does what my ESC paper (that I can't release) did, but it does it
automagically).  Anyways, since it automates the process you might want to take
a look at what we did (or adapt the scripts for your own evil purposes).

As shown in the mkrootfs.sh script, to make uClibc install to /lib instead of
the default /usr/i386-blah-blah-blah, you can either edit the uClibc/Config
file and set INSTALL_DIR to nothing (i.e.  'INSTALL_DIR=') or you can specify
it on the command line when you compile (i.e. 'cd uClibc; make INSTALL_DIR=').
The default /usr/i386-blah-blah-blah simply makes it easier to develop things
with uClibc on a host system.  Otherwise when compiling libfoo, if libfoo has a
line like 'ld blah -o libfoo.so.9 -lc' when it links against libc ld will look
in /lib for libc and now you have a broken libfoo.so.9 since it just linked vs
glibc...

 -Erik

--
Erik B. Andersen   email:  andersen at lineo.com
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