Compiling B2G on your mac

compiling.txt

# Before start, download and install the macosx build prerequisites (there are web pages for all OS)
# https://developer.mozilla.org/En/Developer_Guide/Build_Instructions/Mac_OS_X_Prerequisites

# Using brew ...
brew install yasm mercurial libidl

# Install autoconf 2.13 (this specific version)
brew install https://raw.github.com/Homebrew/homebrew-versions/master/autoconf213.rb

# Now we are ready for getting the mozilla code https://developer.mozilla.org/En/Developer_Guide/Source_Code/Mercurial

# Let's get the code via the the bundle option
wget http://ftp.mozilla.org/pub/mozilla.org/firefox/bundles/mozilla-central.hg 

# Initialise a new mercurial repo
hg init src
cd src
hg unbundle /path/to/your/mozilla-centra.hg

# Update the repo
hg pull

# Get the changes
hg up

# Once we have the code up to date, create or edit the file .mozconfig within the src directory, it should look like this:
mk_add_options MOZ_OBJDIR=../obj-b2g
mk_add_options MOZ_MAKE_FLAGS="-j4 -s"
ac_add_options --enable-application=b2g
ac_add_options --disable-libjpeg-turbo
ac_add_options --disable-tests
ac_add_options --disable-b2g-ril

# MOZ_OBJDIR will be where our binaries will be created during compilation
# MOZ_MAKE depends on your machine (number of multiple tasks you are able to launch)
# --enable-application This is the app from the whole m-c that we want to build. (If you want to build firefox, change it)
# --disable-tests test disabled to make the compilation faster
# --disable-b2g-ril radio disabled to run in the emulator (you can forward the ril from the phone).