[rb-general] GNU Mes 0.20 released
janneke at gnu.org
Mon Sep 9 21:06:56 UTC 2019
We are pleased to announce the release of GNU Mes 0.20, representing
147 commits over 38 weeks.
Mes has now brought the Reduced Binary Seed bootstrap to Guix (bootstrap
a GNU/Linux system without binary GNU toolchain or equivalent). It
should land in Guix master any day now: a big thank you to everyone who
helped, notably Ludovic and Mark.
This release is a step towards the upcoming Scheme-only bootstrap and
bringing Mes into NixOS and Debian. This effort is now sponsored by
- ARM support
- Reduced Binary Seed bootstrap for ARM
- Scheme-only bootstrap: use Guile and Gash to remove bash,
coreutils&co, grep, sed, etc. from the Guix bootstrap binaries
- mes-m2: port Mes.c to M2-Planet
- Introduce Reduced Binaries Seed bootstrap to NixOS
Packages are available in Guix master.
GNU Mes brings a Reduced Binary Seed bootstrap to GNU Guix
and potentially to any other interested GNU/Linux distribution, and
aims to help create a full source bootstrap as part of the
bootstrappable builds effort.
It consists of a mutual self-hosting Scheme interpreter written in
~5,000 LOC of simple C and a Nyacc-based C compiler written in Scheme.
This mes.c is being simplified to be transpiled by M2-Planet.
The Scheme interpreter (mes.c) has a Garbage Collector, a library of
loadable Scheme modules-- notably Dominique Boucher's LALR, Pre-R6RS
[portable syntax-case with R7RS ellipsis, Matt Wette's Nyacc --and test
suite just barely enough to support a simple REPL and simple
Mes+MesCC can compile an only lightly patched TinyCC that is
self-hosting. Using this tcc and the Mes C library we now have a
Reduced Binary Seed bootstrap for the gnutools triplet: glibc-2.2.5,
binutils-2.20.1, gcc-2.95.3. This is enough to bootstrap Guix for
i686-linux and x86_64-linux.
Mes is inspired by The Maxwell Equations of Software: LISP-1.5 -- John
McCarthy page 13, GNU Guix's source/binary packaging transparency and
Jeremiah Orians's stage0 ~500 byte self-hosting hex assembler.
git clone git://git.savannah.gnu.org/mes.git
Here are the compressed sources and a GPG detached signature[*]:
Use a mirror for higher download bandwidth:
Here are the MD5 and SHA1 checksums:
[*] Use a .sig file to verify that the corresponding file (without the
.sig suffix) is intact. First, be sure to download both the .sig file
and the corresponding tarball. Then, run a command like this:
gpg --verify mes-0.20.tar.gz.sig
If that command fails because you don't have the required public key,
then run this command to import it:
gpg --keyserver keys.gnupg.net --recv-keys 1A858392E331EAFDB8C27FFBF3C1A0D9C1D65273
and rerun the 'gpg --verify' command.
* Changes in 0.20 since 0.19
*** The build system has been simplified, again.
Mes now builds ootb on Debian.
*** Mes now supports -c EXPR.
** Divide by zero is now flagged.
*** 1 new function:
*** The C libraries have been exploded into one function per file.
*** MesCC now has enhanced POSIX/gcc comand line support, e.g. -DFOO=1,
-nodefaultlibs, -nostartfiles, -nostdlib.
*** The archiver is now called `mesar'.
*** MesCC now supports Nyacc-0.99.
*** MesCC now depends on MesCC-Tools 0.6.0.
*** 1 new function
** Noteworthy bug fixes
*** interger division has been fixed.
*** isatty now looks at terminfo.
*** signal now uses sigaction correctly for non-x86.
*** string->number now support #x hex-prefix.
*** ungetc now has a buffer per file handle.
janneke and Danny.
Jan Nieuwenhuizen <janneke at gnu.org> | GNU LilyPond http://lilypond.org
Freelance IT http://JoyofSource.com | Avatar® http://AvatarAcademy.com
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