Okay, let me clarify: Arch haven't packaged anything, this is a PKGBUILD from the Arch User Repository (AUR) and things are compiled locally and the PKGBUILD simplifies the process, on line 195 some options are set and on line 269 the actual configure takes place, then after that the compilation starts with `make NATIVE_FAST_BOOT=1` because, as I stated before, `FAST_BOOT` option in the script was set to "YES" (non-nil if you wish)
for making things easier to everybody I will put all the options that are use in the configure phase:
./configure \
--prefix=/usr \
--sysconfdir=/etc \
--libexecdir=/usr/lib \
--localstatedir=/var \
--mandir=/usr/share/man \
--with-gameuser=:games \
--with-sound=alsa \
--with-modules \
--without-gconf \
--without-gsettings \
--with-nativecomp \
--with-pgtk \
--enable-link-time-optimization \
--with-x-toolkit=gtk3 \
--without-xaw3d \
--without-m17n-flt \
--with-cairo \
--with-xwidgets \
--without-compress-install
and:
make NATIVE_FAST_BOOT=1
the latest commit from the feature branch merged into master on source code https://github.com/flatwhatson/emacs is 4a50f541447eddefcca3ebc6bedb110ac0041f90 "Fix MacOS Emacs.app installation (bug#43532)"