Distcc mozilla tutorial
What is this?
This is a tutorial to get distcc to compile Mozilla Firefox on Windows using cygwin.
- Window machines. For distcc to be of any use, there should be at least 2 machines
- Cygwin. You will need gcc to build distcc. We build using gcc-3.4.4
- Mozilla requirements
Checkout, build, and install the distcc source
svn co svn://cdot.senecac.on.ca/distcc/trunk cd trunk && ./configure && make && make install
Checkout the Mozilla source. If you are using the latest version of trunk, than you are fine. If you are building 22.214.171.124 or below, you need to apply a silly patch.
Currently, distcc does not transmit debug .pdb files (i.e., it can only send back one file). So you cannot currently do a debug build. Here is a sample MOZCONFIG file. All you need to do is modify the object directory (MOZ_OBJDIR).
Note the last line, which is required for any MOZCONFIG file that wants to build using distcc.
mk_add_options MOZ_OBJDIR=/cygdrive/c/home/cesar/mozobj ac_add_options --enable-application=browser ac_add_options --enable-optimize ac_add_options --disable-debug ac_add_options --enable-debugger-info-modules=no mk_add_options MOZ_CO_PROJECT=browser mk_add_options MOZ_MAKE_FLAGS="CC='distcc cl' CXX='distcc cl' -j4"
-j4 is arbitrary, but seems to work for mozilla. Usually you want a number to be the total number of cpu's + 1
The only required environment variable is DISTCC_CL_HOSTS, which contains a space delimited list of all slave machines. You must set this variable on the master machine (the machine that contains the source code).
export DISTCC_CL_HOSTS="localhost 10.0.0.2 10.0.0.4"
Start the distcc daemon. The only thing you need to change is who is allowed to use the daemon. You can use a space-delimited list of IP addresses, or specify the CIDR mask of an entire subnet.
distccd --allow '10.0.0.0/24' --daemon