doc: Release update.

* BLURB: Release update.
* HACKING: Remove roadmap.
* INSTALL: Release update.
* NEWS: Add 0.21 section.
* README: Release update.
* ROADMAP: New file.
* configure.sh: Release update.
* doc/announce/ANNOUNCE-0.21: New file.
* doc/mes.texi: Release update.

BLURB

@@ -1,4 +1,7 @@
 
+GNU Mes is a Scheme interpreter and C compiler for bootstrapping the GNU
+system.
+
 GNU Mes was created to address the security concerns that arise from
 bootstrapping an operating system using binary blobs, which is common
 practice for all software distributions.  Mes is a Scheme interpreter
@@ -8,13 +11,13 @@ halved the size of opaque, uninspectable binaries that were needed to
 bootstrap GNU Guix, a functional GNU/Linux distribution that focusses on
 user freedom, reproducibility and security.  That reduction was achieved
 by replacing GNU Binutils, GNU GCC and the GNU C Library with Mes.  The
-final goal is to help create a full source bootstrap for any interested
+final goal is to help create a full source bootstrap for UNIX-like
-UNIX-like operating system.  After three years of volunteer work funding
+operating systems.  After three years of volunteer work funding will
-will enable us to make another big step forward and reach an important
+enable us to make another big step forward and reach an important new
-new milestone.
+milestone.
 
 GNU Mes - https://gnu.org/software/mes
 GNU Guix - https://gnu.org/software/guix
 Bootstrappable Builds - https://bootstrappable.org
 Reproducible Builds - https://reproducible-builds.org
-Reduced Binary Seed bootstrap - http://joyofsource.com/reduced-binary-seed-bootstrap.html
+Reduced Binary Seed bootstrap - https://guix.gnu.org/blog/2019/guix-reduces-bootstrap-seed-by-50/

BOOTSTRAP

@@ -1,22 +1,22 @@
                                                               -*- org -*-
 #+TITLE: bootstrappable.org project
 
-Copyright © 2016, 2017, 2018 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
+Copyright © 2016,2017,2018,2019 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
 
   Copying and distribution of this file, with or without modification,
   are permitted in any medium without royalty provided the copyright
   notice and this notice are preserved.
 
 * What?
-** Full source bootstrapping for GuixSD
+** Full source bootstrapping for GNU Guix
 
-A package in GuixSD is can be uniquely identified by the hash of its
+A package in Guix is uniquely identified by the hash of its source code,
-source code, its dependencies and its build recipe.
+its dependencies, and its build recipe.
 
 Every package can be built from source, except for the bootstrap
 binaries.
 
-*** From the GuixSD manual
+*** From the Guix manual
 
    The distribution is fully “bootstrapped” and “self-contained”: each
 package is built based solely on other packages in the distribution.
@@ -25,7 +25,7 @@ The root of this dependency graph is a small set of “bootstrap
 binaries”, provided by the ‘(gnu packages bootstrap)’ module.  For more
 information on bootstrapping, *note Bootstrapping::.
 
-**** GuixSD bootstrap tarballs
+**** Guix bootstrap tarballs
 
 $ du -schx $(readlink $(guix build bootstrap-tarballs)/*)
 2.1M	/gnu/store/9623n4bq6iq5c8cwwdq99qb7d0xj93ym-binutils-static-stripped-tarball-2.28.1/binutils-static-stripped-2.28.1-x86_64-linux.tar.xz
@@ -66,7 +66,7 @@ about the bootstrap binaries and compilers?
 ** Software: MesCC-tools, M2-Planet, GNU Mes and MesCC
 ** MesCC-tools
 
-    https://github.com/oriansj/mescc-tools
+    https://savannah.gnu.org/projects/mescc-tools
 
 *** hex.0: ~500 byte well-documented, self-hosting hex assembler
 
@@ -101,13 +101,13 @@ be source.
 * TODO
 ** remove or upstream patches from tcc-boot
 ** prepare src/mes.c for M2-Planet transpiler.
-** arm, the Hurd
+** ARM, the Hurd
 ** fix bootstrap-loops: (Nyacc?, mes.M2, psyntax.pp?)
 ** make GNU gcc (8.0?) bootstrappable again, remove [need for] tcc stage
 * DONE
-** upstream mes-boot to GuixSD.
+** upstream mes-boot to Guix.
-** replace GuixSD bootstrap for x86_64.
+** replace Guix bootstrap for x86_64.
-** replace GuixSD bootstrap for x86.
+** replace Guix bootstrap for x86.
 ** add full source gcc-4.7 package build.
 ** bootstrap gcc+glibc-built binutils-20.1, gcc-4.1.0.
 ** have tcc-boot compile gnutools triplet: binutils-2.14, gcc-2.95.3, glibc-2.2.5.

HACKING

@@ -60,62 +60,6 @@ we have no guile (GUILE)...but we should have hex2, M1, and mes.M1.
 That's a bootstrap problem which is currently ignored by using the
 mes-seed package.  mes.M1 will be produced by M2-Planet from mes.c.
 
-
-* ROADMAP
-** TODO
-*** release 0.x, unsorted
-  - mes: prepare src/mes.c for M2-Planet transpiler,
-    Jeremiah branched-out from mes; see https://github.com/oriansj/mes-m2.
-  - mes/mescc: proper docstrings, api reference documentation.
-  - replace bootstrap-binaries with Gash: bash, coreutils, grep, gzip,
-    sed, tar.
-  - mes: real module support, Guile compatible (define-module,
-    define-public, export).
-  - mescc: ARMv7/AArch64 support.
-*** after release 1.0
-  - replace initial gcc-2.95.3 with gcc-3.x or 4.x
-  - use 3rd party libc (ucLibc, dietlibc, ...) after Mes and reduce
-    need for bootstrappably-rich Mes C Library?
-  - mes/mescc: bootstrap a `bootstrap-Guile' before bootstrapping tcc?
-  - tcc: remove or upstream patches from tcc-boot.
-  - tcc: build 0.9.27 directly instead of via 0.9.26, see tinycc
-    wip-bootstrappable@0.9.27 branch
-  - mes/mescc: bootstrap a minimal-Guile?
-    + libguile/{eval,init,list,strings,values,..}.
-    + ice-9/eval.scm
-  - mescc: have mes-tcc pass all scaffold/tests, scaffold/tinycc tests.
-  - syntax-case bootstrap problem
-    + resolve portable syntax-case bootstrap, or
-    + get full source syntax-case up (Andre van Tonder?)
-      https://srfi.schemers.org/srfi-72/srfi-72.html, or
-    + ... drop it?
-  - mescc: the Hurd support.
-** DONE
-*** 0.19 GNU mes now compiles TinyCC in ~8min and supports building Bash and GNU Tar.
-*** 0.18 GNU mes now supports GuixSD bootstrap (x86,x86_64) and has native x86_64 support.
-*** 0.17.1 GNU Mes now allows removing glibc, binutils and gcc from the GuixSD bootstrap.
-*** 0.17 GNU Mes is now an official GNU project and bootstraps gcc-4.7.4.
-*** 0.16.1 Mes now has info docs and installs ootb on Debian buster/testing.
-*** 0.16 Mes Lib C now bootstraps glibc-2.2.5, binutils-2.20.1, gcc-4.1.0.
-*** 0.15: MesCC now has a libc+gnu that supports compiling binutils-2.14, gcc-2.95.3 and glibc-2.2.5.
-*** 0.14: Mes+MesCC now compiles a slightly patched self-hosting tcc.
-*** 0.13: Mes+MesCC now compiles a modified, functional tcc.c (~25,000LOC) in 1h30'.
-*** 0.12: Mes+MesCC now compiles mes.c (~3000LOC) in ~4min.
-*** 0.11: MesCC now compiles a mes-tcc that passes 26/69 of mescc's C tests.
-*** 0.10: Mescc now compiles a mes-tcc that compiles a trivial C to a running a.out.
-*** 0.9: Mescc now writes M1 macro assembly files and compiles tcc.
-*** 0.8: Mescc now writes object files in stage0's labeled hex2 format.
-*** 0.7: Mescc supports -E, -c, -o options, include more complete set of header files,
-enough to work on compiling tinycc's tcc.c albeit a somewhat modified version.
-*** 0.6: Work with unmodified, unbundled Nyacc; compile 33/55 tinycc's tests/test2 suite.
-*** 0.5: Mutual self-hosting Scheme interpreter and C compiler: mes.c and mescc,
-         Support call-with-current-continuation, refactor catch/throw
-*** 0.4: Support Nyacc, Gcc-compiled Mes compiles minimal main.c using nyacc
-*** 0.3: Garbage collector
-*** 0.2: Support psyntax
-*** 0.1: Mes eval/apply feature complete; support syntax-rules, compile main.c using LALR, dump ELF
-
-
 * DEBUG
   MES_DEBUG=<level> mes
 ** Levels

INSTALL

@@ -1,7 +1,7 @@
                                                               -*- org -*-
 #+TITLE: Building and Installing GNU Mes
 
-Copyright © 2016, 2017,2018 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
+Copyright © 2016,2017,2018,2019 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
 
   Copying and distribution of this file, with or without modification,
   are permitted in any medium without royalty provided the copyright
@@ -19,12 +19,14 @@ similar way.
 * Regular build
 ** Prerequisites
 *** Guix
+   #+BEGIN_SRC bash
    guix environment -l guix.scm     #64 bit + 32bit
    guix environment --system=i686-linux -l guix.scm #32 bit only
+   #+END_SRC
 
 *** Other GNU/Linux
-  - [[https://github.com/oriansj/mescc-tools][mescc-tools]], 0.5 is known to work.
+  - [[https://savannah.gnu.org/projects/mescc-tools/][mescc-tools]], 0.6.1 is known to work.
-  - [[https://savannah.gnu.org/projects/nyacc][Nyacc]], 0.86.0 is known to work.
+  - [[https://savannah.gnu.org/projects/nyacc][Nyacc]], 0.93.0 is known to work.
   - GNU Gcc, 4.9.3 is known to work.
   - GNU Guile, version 2.0.12 or is know to work.
   - SH, /bin/sh, GNU Bash 4.3 is known to work.
@@ -34,37 +36,54 @@ similar way.
   - Perl, 5.22 is known to work.
 
 ** Build it
+
+   #+BEGIN_SRC bash
    ./configure
    make
+   #+END_SRC
 
 ** Check it
+
+   #+BEGIN_SRC bash
    make check
+   #+END_SRC
 
 ** Install it
+
+   #+BEGIN_SRC bash
    make install
+   #+END_SRC
 
 * Guix it
-   guix package -f guix.scm
+
+   #+BEGIN_SRC bash
+   guix build -f guix.scm
+   #+END_SRC
 
 * Bootstrap build
 
-The bootstrap build is being developed in Guix, on wip-bootstrap, see
+The bootstrap build is part of Guix, see
-http://git.savannah.gnu.org/cgit/guix.git/tree/gnu/packages/mes.scm?h=wip-bootstrap
+https://git.savannah.gnu.org/cgit/guix.git/tree/gnu/packages/commencement.scm
 
 ** Prerequisites
-  - [[https://github.com/oriansj/mescc-tools][mescc-tools]], 0.5 is known to work.
+  - [[https://savannah.gnu.org/projects/mescc-tools/][mescc-tools]], 0.6.1 is known to work.
-  - [[https://savannah.gnu.org/projects/nyacc][Nyacc]], 0.86.0 is known to work.
+  - [[https://savannah.gnu.org/projects/nyacc][Nyacc]], 0.93.0 is known to work.
-  - [[https://gitlab.com/janneke/mes-seed][mes-seed]], 0.17.1 is known to work.
 
 ** Build it
-   <setup environment, e.g. prefix, MES_SEED>
+
-   ./configure.sh [--prefix=<prefix>]
+   #+BEGIN_SRC bash
-   ./build.sh
+   sh configure.sh [--prefix=<prefix>]
+   sh bootstrap.sh
+   #+END_SRC
 
 ** Check it
 
-   ./check.sh
+   #+BEGIN_SRC bash
+   sh check.sh
+   #+END_SRC
 
 ** Install it
 
-   ./install.sh
+   #+BEGIN_SRC bash
+   sh install.sh
+   #+END_SRC

NEWS

@@ -2,7 +2,7 @@
 #+TITLE: GNU Mes NEWS – history of user-visible changes
 #+STARTUP: content hidestars
 
-Copyright © 2016,2017,2018 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
+Copyright © 2016,2017,2018,2019 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
 
   Copying and distribution of this file, with or without modification,
   are permitted in any medium without royalty provided the copyright
@@ -10,6 +10,23 @@ Copyright © 2016,2017,2018 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
 
 Please send Mes bug reports to bug-mes@gnu.org.
 
+* Changes in 0.21 since 0.20
+** Core
+*** Mes can now be bootstrapped with Gash and Gash Core Utils.
+*** Mes now supports a Scheme-only bootstrap.
+*** Mes now supports -c EXPR.
+** MesCC
+*** Mes C Library now supports bootstrapping GNU Awk, GNU Bash, GNU SED, and GNU Tar.
+*** Mes C Library now has limited float support in vfprintf, vsnprintf, vsscanf.
+**** 7 new functions
+abtod, atof, creat, dtoab, execlp, isgraph, mknod, readlink, strtod,
+symblink.
+**** 5 new stubs
+getgrgid, getgrnam, getpgid, getpgrp, mktime, setgrent.
+** Noteworthy bug fixes
+*** A bug with `mes -c EXPR' has been fixed.
+*** The REPL now works again on x86_64.
+*** --with-system-libc now works again.
 * Changes in 0.20 since 0.19
 ** Core
 *** The build system has been simplified, again.

README

@@ -3,21 +3,21 @@
 
 #+SUBTITLE: Maxwell Equations of Software
 
-[[https://www.gnu.org/software/mes][GNU Mes]] brings a [[http://joyofsource.com/reduced-binary-seed-bootstrap.html][Reduced Binary Seed bootstrap]] to [[https://www.gnu.org/software/guix][GNU Guix]].  This
+[[https://www.gnu.org/software/mes][GNU Mes]] is a Scheme interpreter and C compiler for bootstrapping the GNU
-bootstrap has halved the size of opaque, uninspectable binaries that
+system.  Since version 0.20 it brings a [[https://guix.gnu.org/blog/2019/guix-reduces-bootstrap-seed-by-50/][Reduced Binary Seed bootstrap]] to
-were needed to bootstrap Guix.  The final goal is to help create a full
+[[https://www.gnu.org/software/guix][GNU Guix]].  This bootstrap has halved the size of opaque, uninspectable
-source bootstrap as part of the [[http://bootstrappable.org][bootstrappable builds]] effort for any
+binaries that were needed to bootstrap Guix 1.0.  The final goal is to
-interested UNIX-like operating system.
+help create a full source bootstrap as part of the [[http://bootstrappable.org][bootstrappable builds]]
+effort for UNIX-like operating systems.
 
 Mes 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.
+~5,000 LOC of simple C, and a C compiler written in Scheme.  This mes.c
-This mes.c is [[https://github.com/oriansj/mes-m2][being simplified]] to be transpiled by [[https://github.com/oriansj/m2-planet][M2-Planet]].
+is [[https://github.com/oriansj/mes-m2][being simplified]] to be transpiled by [[https://github.com/oriansj/m2-planet][M2-Planet]].
 
-The Scheme interpreter (mes.c) has a Garbage Collector, a library of
+The Scheme interpreter has a Garbage Collector, a library of loadable
-loadable Scheme modules-- notably Dominique Boucher's [[https://github.com/schemeway/lalr-scm][LALR]], Pre-R6RS
+Scheme modules-- notably Dominique Boucher's [[https://github.com/schemeway/lalr-scm][LALR]], Pre-R6RS [[https://www.cs.indiana.edu/chezscheme/syntax-case/old-psyntax.html][portable
-[[https://www.cs.indiana.edu/chezscheme/syntax-case/old-psyntax.html][portable syntax-case]] with R7RS ellipsis, Matt Wette's [[https://www.nongnu.org/nyacc][Nyacc]] --and test
+syntax-case]] with R7RS ellipsis, Matt Wette's [[https://www.nongnu.org/nyacc][Nyacc]] --and test suite just
-suite just barely enough to support a simple REPL and simple
+enough to support a REPL and a C99 compiler: MesCC.
-C-compiler: MesCC.
 
 Mes+MesCC can compile an only [[http://gitlab.com/janneke/tinycc][lightly patched TinyCC]] that is
 self-hosting.  Using this tcc and the Mes C library we now have a
@@ -64,16 +64,17 @@ General Public Licence version 3 or later.  See the file [[file:COPYING][COPYING
 
 * Links
   [0] https://www.gnu.org/software/mes
-  [1] https://www.gnu.org/software/guix
+  [1] https://guix.gnu.org/blog/2019/guix-reduces-bootstrap-seed-by-50/
-  [2] http://bootstrappable.org
+  [2] https://www.gnu.org/software/guix
-  [3] https://github.com/oriansj/mes-m2
+  [3] https://bootstrappable.org
-  [4] https://github.com/oriansj/m2-planet
+  [4] https://github.com/oriansj/mes-m2
-  [5] https://github.com/schemeway/lalr-scm
+  [5] https://github.com/oriansj/m2-planet
-  [6] https://www.cs.indiana.edu/chezscheme/syntax-case/old-psyntax.html
+  [6] https://github.com/schemeway/lalr-scm
-  [7] https://www.nongnu.org/nyacc
+  [7] https://www.cs.indiana.edu/chezscheme/syntax-case/old-psyntax.html
-  [8] http://gitlab.com/janneke/tinycc
+  [8] https://www.nongnu.org/nyacc
-  [9] [[http://www.softwarepreservation.org/projects/LISP/book/LISP%201.5%20Programmers%20Manual.pdf]]
+  [9] https://gitlab.com/janneke/tinycc
-  [10] https://github.com/oriansj/stage0
+  [10] [[http://www.softwarepreservation.org/projects/LISP/book/LISP%201.5%20Programmers%20Manual.pdf]]
+  [11] https://github.com/oriansj/stage0
 
 * Legalese
 Copyright © 2016,2017,2018,2019 Jan (janneke) Nieuwenhuizen <[[mailto:janneke@gnu.org][janneke@gnu.org]]>

ROADMAP

@@ -0,0 +1,91 @@
+                                                              -*- org -*-
+#+TITLE: Tentative GNU Mes Road Map
+
+Copyright © 2016,2017,2018,2019 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
+
+  Copying and distribution of this file, with or without modification,
+  are permitted in any medium without royalty provided the copyright
+  notice and this notice are preserved.
+
+The goals of the GNU Mes project are two-fold:
+
+  - to bootstrap the GNU system purely from source, without using any binary
+    seeds.
+
+  - to aid the Reproducible-Builds.org effort; demonstrate the impact and
+    importance of GNU and Software Freedom.
+
+Since its inception, the project has gone a long way towards that goal.  Below
+is a list of items we want for version "1.0" of GNU Mes.
+
+You're welcome to discuss this road map on bug-mes@gnu.org or #bootstrappable
+on Freenode!
+
+* TODO
+** release 0.x, unsorted
+  - Introduce the Reduced Binaries Seed bootstrap to NixOS (Debian,
+    Gentoo, ...?)
+  - Full Source Bootstrap: compile Mes.c using M2-Planet.  Jeremiah
+    branched-out from mes; see https://github.com/oriansj/mes-m2, also see the
+    branches: wip-m2-merge and wip-m2.
+  - Scheme-only bootstrap bootstrap-binaries with Gash and Gash Core
+    Utilities: Awk, Bash, Core Utilities, Grep, Gzip, Make, Sed, Tar.
+  - Full Guile-compatible module support: define-module, define-public,
+    export, use-modules, ...
+  - ARMv7/AArch64 support: Mes C Library and MesCC.
+  - Simplify eval-apply and other core functionality (see mes-m2).
+** after release 1.0
+  - Replace the initial gcc-2.95.3 with gcc-4.6.4.
+  - tcc: remove or upstream patches from tcc-boot.
+  - tcc: build 0.9.27 directly instead of via 0.9.26, see tinycc
+    wip-bootstrappable@0.9.27 branch
+  - Bootstrap a `bootstrap-Guile' before bootstrapping tcc?
+  - Skip tcc: Build gcc using MesCC.
+  - better garbage collector.
+  - mes/mescc: proper docstrings, api reference documentation.
+  - mes/mescc: bootstrap a minimal Guile?
+    + libguile/{eval,init,list,strings,values,..}.
+    + ice-9/eval.scm
+  - syntax-case bootstrap problem
+    + resolve portable syntax-case bootstrap, or
+    + get full source syntax-case up (Andre van Tonder?)
+      https://srfi.schemers.org/srfi-72/srfi-72.html, or
+    + ... drop it?
+  - Support the Hurd.  There is a wip-hurd branch; most needed now are fork
+    and exec.
+* DONE
+  - 0.21 GNU Mes now supports a Scheme-only bootstrap and is packaged in
+    Debian GNU/Linux.
+  - 0.20 GNU Mes brings the Reduced Binary Source bootstrap to Guix.
+  - 0.19 GNU Mes now compiles TinyCC in ~8min and supports building Bash and
+    GNU Tar.
+  - 0.18 GNU Mes now supports GuixSD bootstrap (x86,x86_64) and has native
+    x86_64 support.
+  - 0.17.1 GNU Mes now allows removing glibc, binutils and gcc from the GuixSD
+    bootstrap.
+  - 0.17 GNU Mes is now an official GNU project and bootstraps gcc-4.7.4.
+  - 0.16.1 Mes now has info docs and installs ootb on Debian buster/testing.
+  - 0.16 Mes Lib C now bootstraps glibc-2.2.5, binutils-2.20.1, gcc-4.1.0.
+  - 0.15: MesCC now has a libc+gnu that supports compiling binutils-2.14,
+    gcc-2.95.3 and glibc-2.2.5.
+  - 0.14: Mes+MesCC now compiles a slightly patched self-hosting tcc.
+  - 0.13: Mes+MesCC now compiles a modified, functional tcc.c (~25,000LOC) in
+    1h30'.
+  - 0.12: Mes+MesCC now compiles mes.c (~3000LOC) in ~4min.
+  - 0.11: MesCC now compiles a mes-tcc that passes 26/69 of mescc's C tests.
+  - 0.10: Mescc now compiles a mes-tcc that compiles a trivial C to a running
+    a.out.
+  - 0.9: Mescc now writes M1 macro assembly files and compiles tcc.
+  - 0.8: Mescc now writes object files in stage0's labeled hex2 format.
+  - 0.7: Mescc supports -E, -c, -o options, include more complete set of
+    header files, enough to work on compiling tinycc's tcc.c albeit a somewhat
+    modified version.
+  - 0.6: Work with unmodified, unbundled Nyacc; compile 33/55 tinycc's
+    tests/test2 suite.
+  - 0.5: Mutual self-hosting Scheme interpreter and C compiler: mes.c and
+    mescc, Support call-with-current-continuation, refactor catch/throw
+  - 0.4: Support Nyacc, Gcc-compiled Mes compiles minimal main.c using nyacc
+  - 0.3: Garbage collector
+  - 0.2: Support psyntax
+  - 0.1: Mes eval/apply feature complete; support syntax-rules, compile main.c
+    using LALR, dump ELF

build-aux/install.sh.in

@@ -67,9 +67,9 @@ cp\
     BOOTSTRAP\
     COPYING\
     HACKING\
-    INSTALL\
     NEWS\
     README\
+    ROADMAP\
     ${DESTDIR}${docdir}
 
 if test -f ChangeLog+; then

configure.sh

@@ -254,7 +254,7 @@ GNU Mes is configured for
    system:   $mes_system
 
 Run:
-  ./build.sh      to build mes
+  sh build.sh      to build mes
-  ./check.sh      to check mes
+  sh check.sh      to check mes
-  ./install.sh    to install mes
+  sh install.sh    to install mes
 EOF

doc/announce/ANNOUNCE-0.20

@@ -129,5 +129,5 @@ janneke and Danny.
 [8] https://www.nongnu.org/nyacc
 [9] https://gitlab.com/janneke/tinycc
 [10] http://www.softwarepreservation.org/projects/LISP/book/LISP%201.5%20Programmers%20Manual.pdf
-[11] https://github.com/oriansj/stage0
+[11] https://savannah.nongnu.org/projects/stage0
 [12] https://nlnet.nl/project/GNUMes

doc/announce/ANNOUNCE-0.21

@@ -0,0 +1,132 @@
+
+Subject: GNU Mes 0.21 released
+
+<#secure method=pgpmime mode=sign>
+
+We are pleased to announce the release of GNU Mes 0.21, representing
+54 commits over 10 weeks.
+
+Mes has now brought the Reduced Binary Seed bootstrap to Guix (bootstrap
+a GNU/Linux system without binary GNU toolchain or equivalent).  See
+https://guix.gnu.org/blog/2019/guix-reduces-bootstrap-seed-by-50/
+
+This release supports a Scheme-only bootstrap: Mes can now be built with
+Gash and the experimental Gash Core Utils instead of using GNU Awk, GNU
+Bash, the GNU Core Utilities, GNU Grep, GNU Gzip, GNU Make, GNU Sed, and
+GNU Tar.  Also, the Mes C Library now supports bootstrapping those.
+Finally, this release brings Mes as a package to Debian GNU/Linux.
+
+We are excited that the Nlnet Foundation[12] is now sponsoring this
+work!
+
+Next targets:
+
+ - Introduce the Reduced Binaries Seed bootstrap to NixOS (Debian,
+   Gentoo, ...?)
+ - Scheme-only bootstrap: use Guile, Gash and Gash Core Utils to remove
+   awk, bash, core utilities, grep, gzip, make, sed, tar, etc. from the
+   Guix bootstrap binaries
+ - ARM support
+ - Full Source Bootstrap: compile Mes.c using M2-Planet
+ - Reduced Binary Seed bootstrap for ARM
+ - the Hurd
+
+Packages are available in Guix master.
+
+* About
+
+  GNU Mes[0] brings a Reduced Binary Seed bootstrap[1] to GNU Guix[2].
+  This bootstrap has halved the size of opaque, uninspectable binaries
+  that were needed to bootstrap Guix.  The final goal is to help create
+  a full source bootstrap as part of the bootstrappable builds[3] effort
+  for any interested UNIX-like operating system.
+
+  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[4] to be transpiled by M2-Planet[5].
+
+  The Scheme interpreter has a Garbage Collector, a library of loadable
+  Scheme modules-- notably Dominique Boucher's LALR[6], Pre-R6RS
+  [portable syntax-case[7] with R7RS ellipsis, Matt Wette's Nyacc[8]
+  --and test suite just enough to support a REPL and a C99 compiler:
+  MesCC.
+
+  Mes+MesCC can compile an only lightly patched TinyCC[9] 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[10] -- John
+  McCarthy page 13, GNU Guix's source/binary packaging transparency and
+  Jeremiah Orians's stage0[11] ~500 byte self-hosting hex assembler.
+
+* Download
+
+  git clone git://git.savannah.gnu.org/mes.git
+
+  Here are the compressed sources and a GPG detached signature[*]:
+    https://ftp.gnu.org/gnu/mes/mes-0.21.tar.gz
+    https://ftp.gnu.org/gnu/mes/mes-0.21.tar.gz.sig
+
+  Use a mirror for higher download bandwidth:
+    https://ftpmirror.gnu.org/mes/mes-0.21.tar.gz
+    https://ftpmirror.gnu.org/mes/mes-0.21.tar.gz.sig
+
+  Here are the MD5 and SHA1 checksums:
+
+  xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx  mes-0.21.tar.gz
+  xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx  mes-0.21.tar.gz
+
+  [*] 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-0.21.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.
+
+* Get informed, get involved
+
+  See https://bootstrappable.org
+  Join #bootstrappable on irc.freenode.net.
+
+* Changes in 0.21 since 0.20
+ ** Core
+ *** Mes can now be bootstrapped with Gash and Gash Core Utils.
+ *** Mes now supports a Scheme-only bootstrap.
+ *** Mes now supports -c EXPR.
+ ** MesCC
+ *** Mes C Library now supports bootstrapping GNU Awk, GNU Bash, GNU SED, and GNU Tar.
+ *** Mes C Library now has limited float support in vfprintf, vsnprintf, vsscanf.
+ **** 7 new functions
+ abtod, atof, creat, dtoab, execlp, isgraph, mknod, readlink, strtod,
+ symblink.
+ **** 5 new stubs
+ getgrgid, getgrnam, getpgid, getpgrp, mktime, setgrent.
+ ** Noteworthy bug fixes
+ *** A bug with `mes -c EXPR' has been fixed.
+ *** The REPL now works again on x86_64.
+ *** --with-system-libc now works again.
+
+Greetings,
+janneke and Danny.
+
+[0] https://www.gnu.org/software/mes
+[1] https://guix.gnu.org/blog/2019/guix-reduces-bootstrap-seed-by-50/
+[2] https://www.gnu.org/software/guix
+[3] https://bootstrappable.org
+[4] https://github.com/oriansj/mes-m2
+[5] https://github.com/oriansj/m2-planet
+[6] https://github.com/schemeway/lalr-scm
+[7] https://www.cs.indiana.edu/chezscheme/syntax-case/old-psyntax.html
+[8] https://www.nongnu.org/nyacc
+[9] https://gitlab.com/janneke/tinycc
+[10] http://www.softwarepreservation.org/projects/LISP/book/LISP%201.5%20Programmers%20Manual.pdf
+[11] https://savannah.nongnu.org/projects/stage0
+[12] https://nlnet.nl/project/GNUMes

doc/mes.texi

@@ -13,7 +13,7 @@
 @set OPENPGP-SIGNING-KEY-ID 1A858392E331EAFDB8C27FFBF3C1A0D9C1D65273
 
 @copying
-Copyright @copyright{} 2018 Jan (janneke) Nieuwenhuizen@*
+Copyright @copyright{} 2018,2019 Jan (janneke) Nieuwenhuizen@*
 
 Permission is granted to copy, distribute and/or modify this document
 under the terms of the GNU Free Documentation License, Version 1.3 or
@@ -34,7 +34,7 @@ Documentation License''.
 
 @titlepage
 @title GNU Mes Reference Manual
-@subtitle Full Source Bootstrapping of the GNU Guix Operating System
+@subtitle Full Source Bootstrapping for the GNU system
 @author Jan (janneke) Nieuwenhuizen
 
 @page
@@ -124,8 +124,9 @@ that we can trust.
 Mes consists of a mutual self-hosting Scheme interpreter written in C
 and a Nyacc-based (see @pxref{NYACC User's Guide,,, nyacc-ug, NYACC
 User's Guide}) C compiler written in Scheme.  The Scheme interpreter
-@file{mes.c} is about 5000LOC of restricted C and intended to be
+@file{mes.c} is about 5,000LOC of restricted C, to be compiled with
-bootstrappable using a very simple C compiler.
+M2-Planet@footnote{See @url{https://github.com/oriansj/m2-planet}}, a
+very simple C compiler.
 
 If we want to trust our computers to do what we instructed them to do
 then we need to be able to inspect all instructions---all
@@ -255,10 +256,10 @@ binary seed that all software distributions inject are the so called
 @emph{bootstrap binaries}.  Bootstrap binaries are the initial binary
 seeds that are used to start building the distribution.
 
-The GNU Guix operating system has a relatively small closure of
+The GNU Guix operating system, version 1.0 had a relatively small
-bootstrap binaries: GNU binutils, GNU gcc, GNU Libc, GNU Guile, and
+closure of bootstrap binaries: GNU binutils, GNU gcc, GNU Libc, GNU
-``Static binaries'' (think: bash, bzip2, coreutils, gawk, grep, gzip,
+Guile, and ``Static binaries'' (think: bash, bzip2, coreutils, gawk,
-patch, sed, tar, xz).
+grep, gzip, patch, sed, tar, xz).
 
 @example
 $ du -schx $(readlink $(guix build bootstrap-tarballs)/*)
@@ -270,8 +271,8 @@ $ du -schx $(readlink $(guix build bootstrap-tarballs)/*)
 33M	total
 @end example
 
-only a 33MB download that unpacks to 252BM of opaque binaries, that we
+only a 33MB download that unpacks to a 252MB @emph{seed} of opaque
-most probably have the source of, shall we review these together? ;-)
+binary code.
 
 @example
 $ for i in $(readlink $(guix build bootstrap-tarballs)/*);\
@@ -285,6 +286,13 @@ $ du -schx *
 252M	total
 @end example
 
+During the Guix 1.1 development series we managed to create the first
+reduction by 50% of the Guix @emph{bootstrap binaries}@footnote{See
+@url{https://guix.gnu.org/blog/2019/guix-reduces-bootstrap-seed-by-50/}}.
+This was a very important step because the ~250MB @emph{seed} of binary
+code was practically non-auditable, which makes it hard to establish
+what source code produced them.
+
 @node Full Source Bootstrap
 @section  Full Source Bootstrap
 
@@ -433,7 +441,7 @@ enjoy software Freedom 1.
 
 @cindex installing Mes
 Mes is available for download from its website at
-@url{http://www.gnu.org/pub/gnu/mes/}.  This section describes the
+@url{https://www.gnu.org/pub/gnu/mes/}.  This section describes the
 software requirements of Mes, as well as how to install it and get ready
 to use it.
 
@@ -458,21 +466,14 @@ GNU Mes depends on the following packages:
 @item @url{http://gnu.org/software/guile/, GNU Guile}, version 2.0.13 or
 later, including 2.2.x;
 @item @url{http://www.gnu.org/software/make/, GNU Make}.
-@item @url{https://savannah.gnu.org/projects/nyacc/, NYACC},  0.86.0 is known to work.
+@item @url{https://savannah.gnu.org/projects/nyacc/, NYACC}, 0.93.0 or later, including 0.99.0.
 @item @url{http://gcc.gnu.org, GCC's gcc}, version 2.95.3 or later.
-@end itemize
+@item @url{https://savannah.gnu.org/projects/mescc-tools/, mescc-tools}, version 0.6.1 or later,
-
-The following dependencies are optional:
-
-@itemize
-@item
-Installing @url{https://github.com/oriansj/mescc-tools/, mescc-tools},
-version 0.5 or later, will allow you to have MesCC assemble and link.
 @end itemize
 
 @cindex Guile, compatibility
 Mes is compatible with GNU Guile, so it is possible to share the same
-Scheme code between both.  Of course, Mes only supports the minimal
+Scheme code between both.  Currently Mes only supports the minimal
 subset of R5RS and Guile extensions to run MesCC.
 
 @node Bootstrap Requirements
@@ -483,23 +484,21 @@ package.  The bootstrap build procedure for Mes is similar to building
 GNU software and goes like this
 
 @example
-export prefix=/usr/local # for example
+sh configure.sh --prefix=/your/prefix/here
-export MES_SEED=../mes   # for example
+sh bootstrap.sh
-# optionally set some other environment variables
-sh build.sh
 sh check.sh
 sh install.sh
 @end example
 
-See @file{build.sh} for inspiration on what environment variables to
+See @file{configure.sh} and @file{bootstrap.sh} for inspiration on what
-set.
+environment variables to set.
 
 Bootstrapping Mes depends on the following packages:
 
 @itemize
 @item a POSIX-compatible shell
-@item @url{https://github.com/oriansj/mescc-tools/, mescc-tools}, version 0.5 or later.
+@item @url{https://github.com/oriansj/mescc-tools/, mescc-tools}, version 0.6.1 or later.
-@item @url{http://gitlab.com/janneke/mes-seed/, mes-seed}, version 0.17 or later.
+@item @url{https://savannah.gnu.org/projects/nyacc/, NYACC}, 0.93.0 or later, including 0.99.0.
 @end itemize
 
 @node Running the Test Suites
@@ -593,34 +592,51 @@ responsibility.
 @node The Mes Bootstrap Process
 @section The Mes Bootstrap Process
 
-The Mes full source bootstrap process@footnote{TBH, the current state of
+The Reduced Binary Seed bootstrap currently adopted by Guix@footnote{See
-affairs demands to label this a `Reduced Binary Seed bootstrap'} is
+@file{gnu/packages/commencement.scm} in the @var{master} branch in Guix
-currently being developed in Guix@footnote{See
-@file{gnu/packages/commencement.scm} in the @var{core-updates} branch in Guix
 git
-@url{http://git.savannah.gnu.org/cgit/guix.git/tree/gnu/packages/mes.scm?h=wip-bootstrap}}.
+@url{http://git.savannah.gnu.org/cgit/guix.git/tree/gnu/packages/commencement.scm}}.
-In it's intiial form it is only available for x86-linux.
+In its intiial form it is only available for x86-linux.
 
 Currently, it goes like this:
 
 @verbatim
-mescc-tools-source + mescc-tools-seed => mescc-tools
+                         gcc-mesboot (4.9.4)
-
+                                ^
-mes-source + mescc-tools + mescc-seed => mes
+                                |
-
+                        glibc-mesboot (2.16.0)
-tcc-source + mes + tinycc-seed => tcc
+                                ^
-
+                                |
-binutils-source + mes + tcc => binutils0
+                         gcc-mesboot1 (4.7.4)
-
+                                ^
-gcc-source + tcc + binutils0 => gcc-core
+                                |
-
+                        binutils-mesboot (2.20.1a)
-glibc-source + kernel-headers-source + binutils0 + gcc => glibc0
+                                ^
-
+                                |
-binutils-source + binutils0 + gcc + glibc => binutils
+                         gcc-mesboot0 (2.95.3)
-
+                                ^
-gcc-source + binutils + gcc-core + glibc => gcc
+                                |
-
+                         glibc-mesboot0 (2.2.5)
-glibc-source + binutils + gcc + glibc0 => glibc
+                                ^
+                                |
+                        gcc-core-mesboot (2.95.3)
+                                ^
+                                |
+    make-mesboot0, diffutils-mesboot, binutils-mesboot0 (2.20.1a)
+                                ^
+                                |
+                            tcc-boot
+                                ^
+                                |
+                            tcc-boot0
+                                ^
+                                |
+                            mes-boot
+                                ^
+                                |
+                                *
+              bootstrap-mescc-tools, bootstrap-mes (~10MB)
+      bootstrap-bash, bootstrap-coreutils&co, bootstrap-guile (~120MB)
 @end verbatim
 
 @c This graph is generated from wip-bootstrap, doing:
@@ -636,14 +652,14 @@ that builds the rest of Guix.
 Work is ongoing to remove these binary seeds that were intentionally
 injected by our own doing as temporary shortcut
 @example
-mescc-tools-seed, mes-seed, tinycc-seed
+bootstrap-mescc-tools (seed), bootstrap-mes (seed)
 @end example
 
 For now, these additional non-bootstrapped dependencies (i.e., binary
 seeds) are taken for granted
 
 @example
-BOOTSTRAP-GUILE, bash, bzip2, coreutils, gawk, grep, gzip, patch, sed,
+bootstrap-guile, bash, bzip2, coreutils, gawk, grep, gzip, patch, sed,
 tar, xz
 @end example
 
@@ -659,7 +675,7 @@ The @command{mes} command is the Scheme interpreter whose prime
 directive is to run the @command{MesCC} program.
 
 For convenience and testing purposes, @command{mes} tries to mimic
-Guile.
+guile.
 
 @example
 mes @var{option}@dots{} @file{FILE}@dots{}
@@ -704,9 +720,6 @@ variable.
 @item -C,--compiled-path=@var{directory}
 Accepted and ignored for Guile compatibility.
 
-@item ---dump
-dump binary program to stdout
-
 @item -l @var{file}
 Load Scheme source code from @var{file}, and continue processing the
 command line.
@@ -721,9 +734,6 @@ and the command-line arguments---the list provided by the
 @item -h@r{, }--help
 Display help on invoking Mes, and then exit.
 
-@item ---load
-load binary program [module/mes/boot-0.32-mo]
-
 @item -v@r{, }--version
 Display the current version of Mes, and then exit.
 

mes/module/mes/repl.mes

@@ -30,6 +30,7 @@
 (define welcome
   (string-append "GNU Mes " %version "
 Copyright (C) 2016,2017,2018,2019 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
+Copyright (C) 2019 Danny Milosavljevic <dannym@scratchpost.org>
 
 GNU Mes comes with ABSOLUTELY NO WARRANTY; for details type `,show w'.
 This program is free software, and you are welcome to redistribute it