I'm not so happy to download 13 GB for translations, among other things, when running make, when I only specified an english language and locale at configuration time. Could the makefile be changed to simply do a shallow git clone, and/or fetch only the translation files which are needed?
I've also found that extra libraries, ones that I have already installed, through Arch Linux packages, are being downloaded when running make. I presume these are patched versions that Libreoffice needs for debugging. Here's my autogen.input file: --prefix=/opt/libreoffice-git --sysconfdir=/etc --with-lang=en-GB --with-locales=en --with-help --with-myspell-dicts --with-vendor=Ben Cottrell --without-junit --without-system-dicts --disable-dconf --disable-odk --enable-python=system --enable-debug --enable-qt6 --with-system-boost --with-system-cairo --with-system-clucene --with-system-curl --with-system-expat --with-system-harfbuzz --with-system-graphite --with-system-icu --with-system-jpeg --with-system-lcms2 --with-system-libatomic_ops --with-system-libpng --with-system-libxml --with-system-nss --with-system-odbc --with-system-openldap --with-system-openssl --with-system-poppler --with-system-postgresql --with-system-redland --with-system-zlib