minor edits to Macosx section in howto

[Philip Rakity <prakity at yahoo dot com>]

Finished doing x compiles on intel macbook for 2.4 kernel stuff.  Some
minor edits to macosx section in howto.  look for ========

To build gcc and glibc on Mac OS X, you'll need to install a few gnu
utilities:
gnu wget
gnu awk
gnu sed
gnu install (part of gnu coreutils)
such that they are used instead of the native versions. (This may
involve setting PATH and/or making symbolic links.) 

============
For Darwin ports the following symbolic links are needed in
/opt/local/bin
ln -s gcp cp
ln -s gnused sed
ln -s ginstall install
ln -s gawk awk
============
The way I installed them was using fink, but DarwinPorts or installing
from tarballs 
=============
works as well.
=============

One recurring problem is that various Gnu configure scripts assume that
'as' and 'ld' are the Gnu versions, run them with -v to get the version
number, and compare it with some gnu version. That doesn't work well on
the Mac. You can either hack the configure scripts to not do that, or
write wrapper scripts for as and ld. For instance, here's a wrapper
script for as that blatantly lies about what version it is, just to
make crosstool happy: 

===========
For Darwin Ports this is best placed in a file in /opt/local/bin and
named as
===========

  test "$1" = -v && echo GNU assembler 2.13 || /usr/bin/as "$@"

===========
For Darwin Ports this is best placed in a file in /opt/local/bin and
named ld
#!/bin/bash

if [ "${1}" == '-v' -o "${1}" == "--version" ] ; then echo "GNU ld
2.13" ; else /usr/bin/ld  $@ ; fi

===========

Nikolaus Schaller tied all the above into a tidy script; see his
build.sh which both downloads the needed tools and creates the wrappers
for as and ld.  
===========



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