building on Mac OS X

[Jeff Sickel]

I've had two issues when building LilyPond on Mac OS X:

python:

	The python midi.c module doesn't build correctly unless you add a 
setup.py file like the following:

from distutils.core import setup, Extension
setup(name="midi", version="1.0",
      ext_modules=[
         Extension("midi", ["midi.c"], extra_link_args=["-framework", 
"CoreAudio"])
         ]
)

	and end up building the module the standard python way and copying 
over the midi.so.


lexer.ll:

	The lily subtree ends up choking when compiling lex.yy.o (and lexer.o) 
#include <iostream> (change to iostream.h) and creates out/lex.yy.o and 
out/lexer.o.  The actually linker gets duplicate symbols from linking 
both lex.yy.o and lexer.o into the executable.  Fortunately, just 
removing ./out/lexer.o from the linking command makes it work.

jas