[tkloczko@barrel libreoffice-7.1.2.2]$ autoreconf -fiv autoreconf: export WARNINGS= autoreconf: Entering directory '.' autoreconf: configure.ac: not using Gettext autoreconf: running: aclocal --force autoreconf: configure.ac: tracing autoreconf: configure.ac: not using Libtool autoreconf: configure.ac: not using Intltool autoreconf: configure.ac: not using Gtkdoc autoreconf: running: /usr/bin/autoconf --force configure.ac:590: error: possibly undefined macro: AS_HELP_STRING If this token and others are legitimate, please use m4_pattern_allow. See the Autoconf documentation. autoreconf: error: /usr/bin/autoconf failed with exit status: 1
To build LO, you can follow https://wiki.documentfoundation.org/Development/BuildingOnLinux but just autogen.sh && make should make it.
OK. Closing. Thx. Nevertheless that autoreconf is not working (using automake is not essential for that command).