v2.1.0

-- linux-centos7-x86_64 / gcc@10.3.0 ----------------------------
binutils@2.36.1~gas~gold~headers~interwork~ld~libiberty~lto~nls~plugins libs=shared
bzip2@1.0.8~debug~pic~shared
ca-certificates-mozilla@2021-04-13
ccache@4.2.1~ipo build_type=RelWithDebInfo
clingo-bootstrap@spack~docs~ipo+python build_type=Release
curl@7.76.1~darwinssl~gssapi~libssh~libssh2~nghttp2
expat@2.3.0+libbsd
file@5.40
gettext@0.21~bzip2~curses~git~libasprintf~libunistring~libxml2~openmp~tar~xz
git@2.31.1~man~nls~perl~svn~tcltk
gmake@4.3~guile~nls
gzip@1.10
libbsd@0.11.3
libedit@3.1-20210216
libffi@3.3 patches=26f26c6f29a7ce9bf370ad3ab2610f99365b4bdd7b82e7c31df41a3370d685c0
libiconv@1.16
libidn2@2.3.0
libmd@1.0.3
libunistring@0.9.10
lz4@1.9.3 libs=static
lzo@2.10 libs=static
ncurses@6.2~symlinks+termlib abi=none
openssh@8.5p1
openssl@1.1.1k~docs~systemcerts
patch@2.7.6
patchelf@0.12 patches=a155f233b228f02d7886e304cb13898d93801b52f351e098c2cc0719697ec9d0
pcre2@10.36~jit+multibyte
python@3.8.10+bz2+ctypes~dbm~debug~libxml2+lzma~nis~optimizations+pic+pyexpat+pythoncmd+readline+shared+sqlite3+ssl~tix~tkinter~ucs4+uuid+zlib patches=0d98e93189bc278fbc37a50ed7f183bd8aaf249a8e1670a465f0db6bb4f8cf87
readline@8.1
sqlite@3.35.5+column_metadata+fts~functions~rtree
squashfs@4.4+gzip+lz4+lzo+xz+zstd default_compression=zstd patches=902c102d42318debc54426bcb482459a97a992866bc4872676ce63735d91d145
tar@1.34
unzip@6.0
util-linux-uuid@2.36.2
xz@5.2.5~pic libs=static
zlib@1.2.11+optimize+pic~shared
zstd@1.4.9~ipo~legacy~lz4~lzma+multithread+programs~shared+static~zlib build_type=RelWithDebInfo