Firefox build & compile in Ubuntu (Linux)

Firefox build:

• Download
• Using below Site:
• Use python code to download
• To build
• Created new file ""mozconfig" with below content

                  # My first mozilla config

mk_add_options MOZ_OBJDIR=@TOPSRCDIR@/obj-@CONFIG_GUESS@

ac_add_options --enable-application=browser

ac_add_options --enable-debug

• To run:
• export MOZCONFIG=/home/labuser/image/software/firefox-68.0/mozconfig
• ./mach build

• Dependencies

• Python 3.5
• GCC 6.1
• To install Latest gcc, pull code using svn
• To checkout:
• svn checkout svn://gcc.gnu.org/svn/gcc/branches/gcc-9-branch
• https://gcc.gnu.org/svn/gcc/branches/
• https://gcc.gnu.org/svn.html
• Dependencies:
• Run below command it will download:
• ./contrib/download_prerequisites
• Build:
• ./configure --program-suffix=-9   -> This option create gcc as gcc9
• Make  (It take 3hr to build, may be can use "make -j 2")
• In this place not able found the gcc or gcc-9 image.
• Make install
• Now gcc-9 -v shows the version 9 gcc. Worked
• Multiple gcc
• After install still facing firefox not build, becase it uses /usr/bin/gcc
• So gave below symbolic link & G++ also
• ln -s /usr/local/bin/gcc-9 gcc

• https://gcc.gnu.org/install/

• sudo apt-get install libpulse-dev
• curl https://sh.rustup.rs -sSf | sh
• To install cbindgen dependen rust.
• cargo install --force cbindgen
• How it checking the dependency in python
• checking for rustc... not found
• checking for libpulse... Yes  -> Need to investiage how they check.
• pulseaudio = pkg_check_modules('MOZ_PULSEAUDIO', 'libpulse', when='--enable-pulseaudio')
• build/moz.configure/pkg.configure has definition.
• Calling place:
• sys.exit(main(sys.argv))
• sandbox.run(os.path.join(os.path.dirname(__file__), 'moz.configure'))
• To check programs:
• check_prog('TAR', ('gnutar', 'gtar', 'tar'))