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/python-2.0.1/files/disable-unicode.patch

@@ -0,0 +1,107 @@
+SPDX-FileCopyrightText: 2022 fosslinux <fosslinux@aussies.space>
+
+SPDX-License-Identifier: Python-2.0.1
+
+unicodetype_db.h is a file that needs to be regened, but it not
+particularly trivial to regen. For the first build of Python,
+strip out any kind of unicode support that requires
+unicodetype_db.h indiscriminately.
+
+We are effectively restricted to ASCII characters with this change,
+but it works.
+
+--- Objects/unicodectype.c	2000-09-26 08:48:13.000000000 +1100
++++ Objects/unicodectype.c	2022-10-03 21:09:02.108869321 +1100
+@@ -29,30 +29,12 @@
+     const unsigned char digit;
+ } _PyUnicode_TypeRecord;
+ 
+-#include "unicodetype_db.h"
+-
+-static const _PyUnicode_TypeRecord *
+-gettyperecord(int code)
+-{
+-    int index;
+-
+-    if (code < 0 || code >= 65536)
+-        index = 0;
+-    else {
+-        index = index1[(code>>SHIFT)];
+-        index = index2[(index<<SHIFT)+(code&((1<<SHIFT)-1))];
+-    }
+-    return &_PyUnicode_TypeRecords[index];
+-}
+-
+ /* Returns 1 for Unicode characters having the category 'Zl' or type
+    'B', 0 otherwise. */
+ 
+ int _PyUnicode_IsLinebreak(register const Py_UNICODE ch)
+ {
+-    const _PyUnicode_TypeRecord *ctype = gettyperecord(ch);
+-
+-    return (ctype->flags & LINEBREAK_MASK) != 0;
++    return 0;
+ }
+ 
+ /* Returns the titlecase Unicode characters corresponding to ch or just
+@@ -60,12 +44,7 @@
+ 
+ Py_UNICODE _PyUnicode_ToTitlecase(register const Py_UNICODE ch)
+ {
+-    const _PyUnicode_TypeRecord *ctype = gettyperecord(ch);
+-
+-    if (ctype->title)
+-        return ch + ctype->title;
+-
+-    return ch + ctype->upper;
++    return ch;
+ }
+ 
+ /* Returns 1 for Unicode characters having the category 'Lt', 0
+@@ -73,9 +52,7 @@
+ 
+ int _PyUnicode_IsTitlecase(register const Py_UNICODE ch)
+ {
+-    const _PyUnicode_TypeRecord *ctype = gettyperecord(ch);
+-
+-    return (ctype->flags & TITLE_MASK) != 0;
++    return 0;
+ }
+ 
+ /* Returns the integer decimal (0-9) for Unicode characters having
+@@ -83,15 +60,13 @@
+ 
+ int _PyUnicode_ToDecimalDigit(register const Py_UNICODE ch)
+ {
+-    const _PyUnicode_TypeRecord *ctype = gettyperecord(ch);
+-
+-    return (ctype->flags & DECIMAL_MASK) ? ctype->decimal : -1;
++    return -1;
+ }
+ 
+ int _PyUnicode_IsDecimalDigit(register const Py_UNICODE ch)
+ {
+     if (_PyUnicode_ToDecimalDigit(ch) < 0)
+-	return 0;
++    return 0;
+     return 1;
+ }
+ 
+@@ -100,15 +75,13 @@
+ 
+ int _PyUnicode_ToDigit(register const Py_UNICODE ch)
+ {
+-    const _PyUnicode_TypeRecord *ctype = gettyperecord(ch);
+-
+-    return (ctype->flags & DIGIT_MASK) ? ctype->digit : -1;
++    return -1;
+ }
+ 
+ int _PyUnicode_IsDigit(register const Py_UNICODE ch)
+ {
+     if (_PyUnicode_ToDigit(ch) < 0)
+-	return 0;
++    return 0;
+     return 1;
+ }
+ 

steps/python-2.0.1/files/keyword.c

@@ -0,0 +1,45 @@
+/*
+ * SPDX-FileCopyrightText: 2022 fosslinux <fosslinux@aussies.space>
+ *
+ * SPDX-License-Identifier: Python-2.0.1
+ *
+ * Reimplmentation of keyword.py main() in C, to break bootstrapping loop
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#define MAX_LINE 128
+
+int main() {
+	char filename[] = "Lib/keyword.py";
+	FILE *orig = fopen(filename, "r");
+	/* Read-write until starter line */
+	char *line = malloc(MAX_LINE);
+	do {
+		fgets(line, MAX_LINE, orig);
+		puts(line);
+	} while (strcmp(line, "#--start keywords--\n") != 0);
+	/* Perform the actual transformation */
+	while (fgets(line, MAX_LINE, stdin) != NULL) {
+		char *token = line;
+		while (*token != '"') token++;
+		token++;
+		/* Now at beginning of keyword */
+		char *end = token;
+		while (*end != '"') end++;
+		*end = '\0';
+		/* Write output line to stdout */
+		printf("'%s',\n", token);
+		/* For each line also advance orig pointer */
+		fgets(line, MAX_LINE, orig);
+		/* Cleanup */
+		free(line);
+		line = malloc(MAX_LINE);
+	}
+	/* Read-write until end */
+	while (fgets(line, MAX_LINE, orig) != NULL) {
+		puts(line);
+	}
+}

steps/python-2.0.1/files/token.c

@@ -0,0 +1,46 @@
+/*
+ * SPDX-FileCopyrightText: 2022 fosslinux <fosslinux@aussies.space>
+ *
+ * SPDX-License-Identifier: Python-2.0.1
+ *
+ * Reimplmentation of token.py main() in C, to break bootstrapping loop
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#define MAX_LINE 128
+
+int main(int argc, char** argv) {
+	char *filename = argv[1];
+	FILE *orig = fopen(filename, "r");
+	/* Read-write until starter line */
+	char *line = malloc(MAX_LINE);
+	do {
+		fgets(line, MAX_LINE, orig);
+		puts(line);
+	} while (strcmp(line, "#--start constants--\n") != 0);
+	/* Perform the actual transformation */
+	while (fgets(line, MAX_LINE, stdin) != NULL) {
+		/* Transform input into output */
+		char *tokena = line + 8;
+		char *tokenb = strstr(tokena, "\t");
+		if (tokenb == 0) tokenb = strstr(tokena, " ");
+		*tokenb = '\0';
+		tokenb++;
+		while (*tokenb == '\t' || *tokenb == ' ') tokenb++;
+		/* Write output line to stdout */
+		printf("%s = %s", tokena, tokenb);
+		/* For each line also advance orig pointer */
+		fgets(line, MAX_LINE, orig);
+		/* Cleanup */
+		free(line);
+		line = malloc(MAX_LINE);
+	}
+	/* Read-write until end */
+	while (fgets(line, MAX_LINE, orig) != NULL) {
+		puts(line);
+		fflush(stdout);
+	}
+}