sudo pacman -S --needed base-devel
[sudo] password for user: 
warning: autoconf-2.69-7 is up to date -- skipping
warning: automake-1.16.2-1 is up to date -- skipping
warning: binutils-2.34-2.1 is up to date -- skipping
warning: bison-3.5.4-1 is up to date -- skipping
warning: fakeroot-1.24-2 is up to date -- skipping
warning: file-5.38-3 is up to date -- skipping
warning: findutils-4.7.0-2 is up to date -- skipping
warning: flex-2.6.4-3 is up to date -- skipping
warning: gawk-5.1.0-1 is up to date -- skipping
warning: gcc-9.3.0-1 is up to date -- skipping
warning: gettext-0.20.2-1 is up to date -- skipping
warning: grep-3.4-1 is up to date -- skipping
warning: groff-1.22.4-3 is up to date -- skipping
warning: gzip-1.10-3 is up to date -- skipping
warning: libtool-2.4.6+42+gb88cebd5-11 is up to date -- skipping
warning: m4-1.4.18-3 is up to date -- skipping
warning: make-4.3-3 is up to date -- skipping
warning: pacman-5.2.1-4 is up to date -- skipping
warning: patch-2.7.6-8 is up to date -- skipping
warning: pkgconf-1.6.3-3 is up to date -- skipping
warning: sed-4.8-1 is up to date -- skipping
warning: sudo-1.8.31.p1-1 is up to date -- skipping
warning: texinfo-6.7-2 is up to date -- skipping
warning: which-2.21-5 is up to date -- skipping
 there is nothing to do