Rebuilding Chromium - Error on Stretch

# build gn
cp base/numerics/safe_conversions_arm_impl.h base/numerics/safe_math_arm_impl.h tools/gn/base/numerics
./tools/gn/bootstrap/bootstrap.py --skip-generate-buildfiles -s
Usage: bootstrap.py [options]

bootstrap.py: error: -s option requires an argument
debian/rules:96: recipe for target 'override_dh_auto_configure' failed
make[1]: *** [override_dh_auto_configure] Error 2
make[1]: Leaving directory '/data/jason/Downloads/chromiumbuild/chromium-browser-71.0.3578.80'
debian/rules:93: recipe for target 'binary' failed
make: *** [binary] Error 2

Self explanatory. The only change I made was to the debian/rules file enabling the Google Hangouts extension. Otherwise it is straight from the archives. The above output came at the end of a

fakeroot debian/rules binary

command.

*EDIT*

Getting same results on a fresh untouched

apt source chromium

download.

If you're trying to build a Debian package from Debianised source, then you need to use the distribution's own package build tools (dpkg-buildpackage, etc).

I'm following the backport guide.

https://wiki.debian.org/SimpleBackportCreation

Have followed all steps and the result is the same regardless of fakeroot or dpkg-buildpackage. The only difference is fakeroot returns the error in a few seconds, dpkg returns the error after compiling stuff for a good while. Doing it on my laptop so not exactly a speed demon for compiling.

I'm trying to switch my environment to Debian from Ubuntu. Ubuntu has been wonderful but I desire something a bit more concrete and reliable, at least where dist-upgrades are concerned. I want something that I don't even have to question about relying on it. I've successfully managed to backport Kodi so far. The only things I need to backport or change for my use is Chromium, Kodi, and I need to get Mythtv-backend from either the Ubuntu repos (backport from there) or build from source directly. Other than those couple things Debian fits my bill perfectly.