Remove the notion of "sys*"

- This idea originates from very early in the project and was, at the
  time, a very easy way to categorise things.
- Now, it doesn't really make much sense - it is fairly arbitary, often
  occuring when there is a change in kernel, but not from builder-hex0
  to fiwix, and sysb is in reality completely unnecessary.
- In short, the sys* stuff is a bit of a mess that makes the project
  more difficult to understand.
- This puts everything down into one folder and has a manifest file that
  is used to generate the build scripts on the fly rather than using
  coded scripts.
- This is created in the "seed" stage.

stage0-posix -- (calls) --> seed -- (generates) --> main steps

Alongside this change there are a variety of other smaller fixups to the
general structure of the live-bootstrap rootfs.

- Creating a rootfs has become much simpler and is defined as code in
  go.sh. The new structure, for an about-to-be booted system, is

/
-- /steps (direct copy of steps/)
-- /distfiles (direct copy of distfiles/)
-- all files from seed/*
-- all files from seed/stage0-posix/*

- There is no longer such a thing as /usr/include/musl, this didn't
  really make any sense, as musl is the final libc used. Rather, to
  separate musl and mes, we have /usr/include/mes, which is much easier
  to work with.
- This also makes mes easier to blow away later.
- A few things that weren't properly in packages have been changed;
  checksum-transcriber, simple-patch, kexec-fiwix have all been given
  fully qualified package names.
- Highly breaking change, scripts now exist in their package directory
  but NOT WITH THE packagename.sh. Rather, they use pass1.sh, pass2.sh,
  etc. This avoids manual definition of passes.
  - Ditto with patches; default directory is patches, but then any patch
    series specific to a pass are named patches-passX.

steps/gcc-13.1.0/pass1.sh

@@ -0,0 +1,99 @@
+# SPDX-FileCopyrightText: 2023 fosslinux <fosslinux@aussies.space>
+#
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+src_prepare() {
+    default
+
+    # Remove vendored zlib
+    rm -r zlib/
+
+    # Regen gperf file (because GCC's make rules suck)
+    rm gcc/cp/cfns.h
+    # (taken directly from gcc/cp/Make-lang.in)
+    gperf -o -C -E -k '1-6,$' -j1 -D -N 'libc_name_p' -L C++ \
+        gcc/cp/cfns.gperf --output-file gcc/cp/cfns.h
+
+    # Regenerate autogen stuff
+    autogen Makefile.def
+    pushd fixincludes
+    ./genfixes
+    popd
+    
+    # Regenerate autotools
+    # configure
+    find . -name configure | sed 's:/configure::' | while read d; do
+        pushd "${d}"
+        AUTOMAKE=automake-1.15 ACLOCAL=aclocal-1.15 autoreconf-2.69 -fiv
+        popd
+    done
+    # Because GCC is stupid, copy depcomp back in
+    cp "${PREFIX}/share/automake-1.15/depcomp" .
+    # Makefile.in only
+    local BACK="${PWD}"
+    find . -type d \
+        -exec test -e "{}/Makefile.am" -a ! -e "{}/configure" \; \
+        -print | while read d; do
+        d="$(readlink -f "${d}")"
+        cd "${d}"
+        # Find the appropriate configure script for automake
+        while [ ! -e configure ]; do
+            cd ..
+        done
+        automake-1.15 -fai "${d}/Makefile"
+        cd "${BACK}"
+    done
+
+    # Remove bison generated files
+    rm intl/plural.c
+
+    # Remove flex generated files
+    rm gcc/gengtype-lex.cc
+
+    # Remove unused generated files
+    rm -r libgfortran/generated
+
+    # intl/ Makefile is a bit broken because of new gettext
+    sed -i 's/@USE_INCLUDED_LIBINTL@/no/' intl/Makefile.in
+
+    # Regenerate crc table in libiberty/crc32.c
+    pushd libiberty
+    sed -n -e '38,65p' crc32.c > crcgen.c
+    gcc -o crcgen crcgen.c
+    head -n 69 crc32.c > crc32.c.new
+    ./crcgen >> crc32.c.new
+    tail -n +138 crc32.c >> crc32.c.new
+    mv crc32.c.new crc32.c
+    popd
+    
+    # Remove docs/translation
+    find . -name "*.gmo" -delete
+    find . -name "*.info" -delete
+}
+
+src_configure() {
+    mkdir build
+    cd build
+
+    LDFLAGS="-static" \
+    ../configure \
+        --prefix="${PREFIX}" \
+        --libdir="${LIBDIR}" \
+        --build=i386-unknown-linux-musl \
+        --target=i386-unknown-linux-musl \
+        --host=i386-unknown-linux-musl \
+        --enable-bootstrap \
+        --enable-static \
+        --disable-plugins \
+        --disable-libssp \
+        --disable-libsanitizer \
+        --program-transform-name= \
+        --enable-languages=c,c++ \
+        --with-system-zlib \
+        --disable-multilib \
+        --enable-threads=posix
+}
+
+src_compile() {
+    make "${MAKEJOBS}" BOOT_LDFLAGS="-static"
+}

steps/gcc-13.1.0/patches/new-gettext.patch

@@ -0,0 +1,17 @@
+SPDX-FileCopyrightText: 2023 fosslinux <fosslinux@aussies.space>
+
+SPDX-License-Identifier: GPL-3.0-or-later
+
+In new gettext external is required for AM_GNU_GETTEXT.
+
+--- intl/configure.ac	2023-02-07 18:43:58.989786230 +1100
++++ intl/configure.ac	2023-02-07 18:43:02.182632631 +1100
+@@ -4,7 +4,7 @@
+ AC_CONFIG_HEADER(config.h)
+ AC_CONFIG_MACRO_DIR(../config)
+ AM_GNU_GETTEXT_VERSION(0.12.1)
+-AM_GNU_GETTEXT([], [need-ngettext])
++AM_GNU_GETTEXT([external], [need-ngettext])
+ 
+ # This replaces the extensive use of DEFS in the original Makefile.in.
+ AC_DEFINE(IN_LIBINTL, 1, [Define because this is libintl.])

steps/gcc-13.1.0/sources

@@ -0,0 +1 @@
+https://ftp.gnu.org/gnu/gcc/gcc-13.1.0/gcc-13.1.0.tar.xz 61d684f0aa5e76ac6585ad8898a2427aade8979ed5e7f85492286c4dfc13ee86