system/slibtool: FTBFS: missing m4 dependency
Found on x86_64:
>>> slibtool: Building system/slibtool 0.5.34-r0 (using abuild 3.4.2-r0) started Wed, 20 Apr 2022 03:54:13 +0000
>>> slibtool: Checking sanity of /root/packages/system/slibtool/APKBUILD...
>>> slibtool: Analyzing dependencies...
(1/4) Upgrading ncurses-terminfo-base (6.2-r1 -> 6.3-r0)
(2/4) Upgrading ncurses-terminfo (6.2-r1 -> 6.3-r0)
(3/4) Upgrading ncurses-libs (6.2-r1 -> 6.3-r0)
(4/4) Installing .makedepends-slibtool (20220420.035413)
OK: 448 MiB in 93 packages
>>> slibtool: Cleaning temporary build dirs...
>>> slibtool: Fetching https://git.foss21.org/slibtool/snapshot/slibtool-0.5.34.tar.xz
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
^M 0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0^M 0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0^M100 79788 0 79788 0 0 70112 0 --:--:-- 0:00:01 --:--:-- 70112
>>> slibtool: Fetching https://git.foss21.org/slibtool/snapshot/slibtool-0.5.34.tar.xz
>>> slibtool: Checking sha512sums...
slibtool-0.5.34.tar.xz: OK
>>> slibtool: Unpacking /var/cache/distfiles/slibtool-0.5.34.tar.xz...
./configure: 1: eval: m4: not found
>>> ERROR: slibtool: build failed