Convenience library in SableVM (libffi)

Hello Gerrit,

You might recall, the Cygwin patch for SableVM you once prepared
(thanks!).  At that time we merged everyting besides the part that made
the libffi library a convenience library included in SableVM sources.

In retrospect, I think you were right: that was the way to go.  And
so now I want to make libffi a convenience library.  I managed to get it
mostly working, but ran into problems:


1. When invoking 'make install' for sablevm the libffi will also
install its files.  I added an ugly check for ../libsablevm that
disables the 'install' target int libffi's toplevel Makefile.
Is there a clener/more standard way to do that?


2. The 'dist' tarball works, and includes libffi.  But 'distcheck' fails
with:

Making all in libffi
/bin/sh: line 1: cd: libffi: No such file or directory
make[3]: *** [all-recursive] Error 1
make[3]: Leaving directory
`/export/nobackup/localhost/gproko/work/svm-convlib/sablevm-convlib
+3842/_build/src'


At http://gadek.homelinux.org/sablevm-convlib.tgz
you'll find the version that includes libffi, in case you needed the
access to actual code in question.


I'll be very thankful for all clues, hints or good RTFMs. [*]

				Grzegorz B. Prokopski


[*] Of course I googled for over an hour, but didn't find (m)any
relevant informations.
-- 
Grzegorz B. Prokopski           <[email protected]>
SableVM - Free, LGPL'ed Java VM  http://sablevm.org
Why SableVM ?!?                  http://sablevm.org/wiki/Features
Debian GNU/Linux - the Free OS   http://www.debian.org