Patch for hard-coded "ln -s" (MSVC/MSYS)

[michael . goffioul]

I'd like to propose the attached patch, which makes octave Makefile's to
use $(LN_S) instead of hard-coded "ln / ln -s". The main reason is that
this does not work under MSYS shell:
 
ln [-s] file1 file2 ... fileN directory
 
The patch additionally use "-9" instead of "--best" for gzip/bzip2: the version
of bzip2 shipped with MSYS does not support --best. This change is minor.
 
Finally, it also comment one line in the "dist" target of octMakefile, because
this does not work under MSYS (it does not work neither under Cygwin):
 
for dir in ; do ...; done
 
Michael.

oct-ln-s.diff.bz2
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