Add mes and mescc-tools-extra

mescc-tools-extra contains two important tools:
- cp
- chmod

mes first builds itself from a mes 0.21 seed as used by guix, and then
builds a mes 0.22 and then mes 0.22 using that created mes 0.22.

It does /not/ use bootstrap.sh as we don't have a proper shell at this
point, it has been manually adapted for kaem.

sysa/mes-0.22/build-aux/bootstrap.sh.in

@@ -0,0 +1,114 @@
+#! @SHELL@
+
+# GNU Mes --- Maxwell Equations of Software
+# Copyright © 2019 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
+#
+# This file is part of GNU Mes.
+#
+# GNU Mes is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or (at
+# your option) any later version.
+#
+# GNU Mes is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with GNU Mes.  If not, see <http://www.gnu.org/licenses/>.
+
+LANG=
+MES_ARENA=${MES_ARENA-20000000}
+export MES_ARENA
+MES_MAX_ARENA=${MES_MAX_ARENA-${MES_ARENA}}
+export MES_MAX_ARENA
+MES_STACK=${MES_STACK-5000000}
+export MES_STACK
+MES_PREFIX=${MES_PREFIX-$PWD}
+
+. ./config.sh
+. ${srcdest}build-aux/configure-lib.sh
+. ${srcdest}build-aux/cflags.sh
+
+CPPFLAGS="-D HAVE_CONFIG_H=1 -I include"
+AM_CFLAGS=""
+mkdir -p mescc-lib
+cp config.sh mescc-lib/config.sh
+cd mescc-lib
+srcdest=../${srcdest}
+ln -sf ${srcdest}mes .
+ln -sf ${srcdest}module .
+ln -sf ${srcdest}src .
+AM_CPPFLAGS="-D HAVE_CONFIG_H=1 -I ${srcdest}include -I ${srcdest}include/$mes_kernel/$mes_cpu"
+
+mkdir -p $mes_cpu-mes
+$CC -c $AM_CPPFLAGS $CPPFLAGS $AM_CFLAGS $CFLAGS ${srcdest}lib/$mes_kernel/$mes_cpu-mes-$compiler/crt1.c
+cp crt1.o $mes_cpu-mes
+cp crt1.s $mes_cpu-mes
+
+objects=
+for c in $libc_mini_SOURCES; do
+    o=$(basename $c .c).o
+    if test ! -e $o -o ${srcdest}$c -nt $o; then
+        echo "  CC       $c"
+        $CC -c $AM_CPPFLAGS $CPPFLAGS $AM_CFLAGS $CFLAGS ${srcdest}$c
+    fi
+    objects="$objects $o"
+done
+echo "  AR       $mes_cpu-mes/libc-mini.a"
+$AR crD $mes_cpu-mes/libc-mini.a $objects
+
+objects=
+for c in $libc_SOURCES; do
+    o=$(basename $c .c).o
+    if test ! -e $o -o ${srcdest}$c -nt $o; then
+        echo "  CC       $c"
+        $CC -c $AM_CPPFLAGS $CPPFLAGS $AM_CFLAGS $CFLAGS ${srcdest}$c
+    fi
+    objects="$objects $o"
+done
+echo "  AR       $mes_cpu-mes/libc.a"
+$AR crD $mes_cpu-mes/libc.a $objects
+
+objects=
+for c in $libc_tcc_SOURCES; do
+    o=$(basename $c .c).o
+    if test ! -e $o -o ${srcdest}$c -nt $o; then
+        echo "  CC       $c"
+        $CC -c $AM_CPPFLAGS $CPPFLAGS $AM_CFLAGS $CFLAGS ${srcdest}$c
+    fi
+    objects="$objects $o"
+done
+echo "  AR       $mes_cpu-mes/libc+tcc.a"
+$AR crD $mes_cpu-mes/libc+tcc.a $objects
+
+cd ..
+srcdest=
+CPPFLAGS="-D HAVE_CONFIG_H=1 -I ${srcdest}include -I ${srcdest}include/$mes_kernel/$mes_cpu"
+
+objects=
+for c in $mes_SOURCES; do
+    o=$(basename $c .c).o
+    if test ! -e $o -o ${srcdest}$c -nt $o; then
+        echo "  CC       $c"
+        $CC -c $AM_CPPFLAGS $CPPFLAGS $AM_CFLAGS $CFLAGS ${srcdest}$c
+    fi
+    objects="$objects $o"
+done
+echo "  CCLD     bin/mes-mescc"
+mkdir -p bin
+$CC -nostdlib -o bin/mes-mescc -L mescc-lib mescc-lib/crt1.o $objects -lc
+cp bin/mes-mescc bin/mes
+
+(
+    mkdir -p gcc-lib
+    cp config.sh gcc-lib
+    cd gcc-lib
+    compiler=gcc
+    if test -z "$srcdest"; then
+        srcdest=../
+        srcdir=../
+    fi
+    @SHELL@ ${srcdest}build-aux/build-source-lib.sh
+)