ac_add_options --prefix=/usr
ac_add_options --libdir=/usr/lib

ac_add_options --enable-official-branding
ac_add_options --enable-optimize="$CFLAGS"
ac_add_options --enable-install-strip
ac_add_options --enable-strip

ac_add_options --without-system-nspr
ac_add_options --without-system-nss
ac_add_options --with-system-jpeg
ac_add_options --with-system-zlib
ac_add_options --with-system-bz2
ac_add_options --with-system-png

# System 'libvpx' is too new.
ac_add_options --without-system-libvpx

ac_add_options --with-system-pixman
ac_add_options --with-system-ffi

ac_add_options --disable-gconf
ac_add_options --disable-profiling
ac_add_options --disable-accessibility
ac_add_options --disable-tests
ac_add_options --disable-system-extension-dirs
ac_add_options --disable-parental-controls
ac_add_options --disable-debug-symbols
ac_add_options --disable-callgrind
ac_add_options --disable-vtune

# Settings for musl.
ac_add_options --disable-elf-hack
ac_add_options --disable-gold
ac_add_options --disable-jemalloc
ac_add_options --enable-release

# ALSA/PulseAudio (removed in 70 (still present in 71b4(?!))
ac_add_options --disable-pulseaudio
ac_add_options --enable-alsa

ac_add_options --disable-startup-notification

# Respect the user.
ac_add_options MOZ_SERVICES_METRICS=
ac_add_options MOZ_PAY=
ac_add_options MOZ_SERVICES_HEALTHREPORTER=
ac_add_options MOZ_SERVICES_FXACCOUNTS=
ac_add_options MOZ_SERVICES_METRICS=
ac_add_options MOZ_DATA_REPORTING=
ac_add_options MOZ_DEVICES=
ac_add_options MOZ_REQUIRE_SIGNING=
ac_add_options MOZ_TELEMETRY_REPORTING=
ac_add_options --disable-crashreporter
ac_add_options --disable-updater
ac_add_options --disable-dbus
ac_add_options --disable-eme
ac_add_options --disable-necko-wifi
ac_add_options --disable-webrtc