The method for setting OS/161 environment for Mac OS X

OS_161_Mac_OS_Tutorial.txt

I just test on OS X 10.9.1

You need homebrew first: http://brew.sh

Then:

brew tap homebrew/versions
brew install gcc48

Long wait.

And make a soft link

ln -s /usr/local/Cellar/gcc48/4.8.2/bin/gcc-4.8 /usr/local/bin/gcc

Then make sure the "/usr/local/bin" at the first of $PATH

Then install gettext:
brew install gettext
brew link --force gettext

Run and make sure it works:
msgfmt -h

After all, the preparation is done. But there are two steps differ with the tutorial: http://www.eecs.harvard.edu/~dholland/os161/resources/setup.html 

1. When compile gcc, you need use the below line for configure:
./configure -nfp --disable-shared --disable-threads --disable-libmudflap --disable-libssp --target=mips-harvard-os161 --prefix=$HOME/os161/tools

The original version is "--nfp", but I find that we need change to "-nfp".

2. When compile gdb, you need use the below line for configure:
./configure --disable-werror --target=mips-harvard-os161 --prefix=$HOME/os161/tools

Add "--disable-werror" for original version.

For easily build and debug OS/161 kernel, please try the scripts:
https://github.com/xcv58/OS-161-Scripts