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/m4-1.4.7/mk/main.mk

@@ -0,0 +1,48 @@
+# SPDX-FileCopyrightText: 2021 Andrius Štikonas <andrius@stikonas.eu>
+# SPDX-FileCopyrightText: 2022 fosslinux <fosslinux@aussies.space>
+
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+CC      = tcc
+AR      = tcc -ar
+
+CFLAGS  = -I lib \
+          -DVERSION=\"1.4.7\" \
+          -DPACKAGE_BUGREPORT=\"bug-m4@gnu.org\" \
+          -DPACKAGE_STRING=\"GNU\ M4\ 1.4.7\" \
+          -DPACKAGE=\"m4\" \
+          -DPACKAGE_NAME=\"GNU\ M4\" \
+          -DHAVE_STDINT_H=1 \
+          -DHAVE___FPENDING=1 \
+          -DHAVE_DECL___FPENDING=1 \
+          -D_GNU_SOURCE=1 \
+          -D_GL_UNUSED= \
+          -D__getopt_argv_const=const \
+          -DSYSCMD_SHELL=\"/bin/sh\"
+
+LDFLAGS = -L . -lm4
+
+.PHONY: all
+
+LIB_SRC = cloexec close-stream dup-safer error exitfail fd-safer fopen-safer getopt getopt1 mkstemp-safer regex obstack tmpfile-safer verror xalloc-die xasprintf xmalloc xvasprintf
+LIB_OBJECTS = $(addprefix lib/, $(addsuffix .o, $(LIB_SRC)))
+
+M4_SRC = m4 builtin debug eval format freeze input macro output path symtab
+M4_OBJ = $(addprefix src/, $(addsuffix .o, $(M4_SRC)))
+
+all: src/m4
+
+src/m4: libm4.a $(M4_OBJ)
+	$(CC) $(CFLAGS) $^ $(LDFLAGS) -o $@
+
+libm4.a: $(LIB_OBJECTS)
+	$(AR) cr $@ $^
+
+%.o : %.c lib/config.h
+	$(CC) -c -o $@ $< $(CFLAGS)
+
+lib/config.h:
+	touch lib/config.h
+
+install: all
+	install -D src/m4 $(DESTDIR)$(PREFIX)/bin/m4

steps/m4-1.4.7/sources

@@ -0,0 +1 @@
+https://mirrors.kernel.org/gnu/m4/m4-1.4.7.tar.gz 093c993767f563a11e41c1cf887f4e9065247129679d4c1e213d0544d16d8303