Undiamond Python headers

This change gets the Python codebase into a state where it conforms to
the conventions of this codebase. It's now possible to include headers
from Python, without worrying about ordering. Python has traditionally
solved that problem by "diamonding" everything in Python.h, but that's
problematic since it means any change to any Python header invalidates
all the build artifacts. Lastly it makes tooling not work. Since it is
hard to explain to Emacs when I press C-c C-h to add an import line it
shouldn't add the header that actually defines the symbol, and instead
do follow the nonstandard Python convention.

Progress has been made on letting Python load source code from the zip
executable structure via the standard C library APIs. System calss now
recognizes zip!FILENAME alternative URIs as equivalent to zip:FILENAME
since Python uses colon as its delimiter.

Some progress has been made on embedding the notice license terms into
the Python object code. This is easier said than done since Python has
an extremely complicated ownership story.

- Some termios APIs have been added
- Implement rewinddir() dirstream API
- GetCpuCount() API added to Cosmopolitan Libc
- More bugs in Cosmopolitan Libc have been fixed
- zipobj.com now has flags for mangling the path
- Fixed bug a priori with sendfile() on certain BSDs
- Polyfill F_DUPFD and F_DUPFD_CLOEXEC across platforms
- FIOCLEX / FIONCLEX now polyfilled for fast O_CLOEXEC changes
- APE now supports a hybrid solution to no-self-modify for builds
- Many BSD-only magnums added, e.g. O_SEARCH, O_SHLOCK, SF_NODISKIO

third_party/python/Modules/_sre.c

@@ -1,4 +1,22 @@
+#include "third_party/python/Include/abstract.h"
+#include "third_party/python/Include/boolobject.h"
+#include "third_party/python/Include/bytesobject.h"
+#include "third_party/python/Include/descrobject.h"
+#include "third_party/python/Include/dictobject.h"
+#include "third_party/python/Include/import.h"
+#include "third_party/python/Include/iterobject.h"
+#include "third_party/python/Include/longobject.h"
+#include "third_party/python/Include/modsupport.h"
+#include "third_party/python/Include/objimpl.h"
+#include "third_party/python/Include/pyctype.h"
+#include "third_party/python/Include/pyerrors.h"
+#include "third_party/python/Include/pyhash.h"
+#include "third_party/python/Include/pymem.h"
+#include "third_party/python/Include/structmember.h"
+#include "third_party/python/Include/warnings.h"
+#include "third_party/python/Modules/sre.h"
 /* clang-format off */
+
 /*
  * Secret Labs' Regular Expression Engine
  *
@@ -41,10 +59,6 @@ static const char copyright[] =
 
 #define PY_SSIZE_T_CLEAN
 
-#include "third_party/python/Include/Python.h"
-#include "third_party/python/Include/structmember.h"
-#include "third_party/python/Modules/sre.h"
-
 #define SRE_CODE_BITS (8 * sizeof(SRE_CODE))
 
 /* name of this module, minus the leading underscore */
@@ -65,12 +79,7 @@ static const char copyright[] =
 
 /* -------------------------------------------------------------------- */
 
-#if defined(_MSC_VER)
-#pragma optimize("agtw", on) /* doesn't seem to make much difference... */
-#pragma warning(disable: 4710) /* who cares if functions are not inlined ;-) */
-/* fastest possible local call under MSVC */
-#define LOCAL(type) static __inline type __fastcall
-#elif defined(USE_INLINE)
+#if defined(USE_INLINE)
 #define LOCAL(type) static inline type
 #else
 #define LOCAL(type) static type
@@ -232,21 +241,21 @@ data_stack_grow(SRE_STATE* state, Py_ssize_t size)
 #define SRE_CHAR Py_UCS1
 #define SIZEOF_SRE_CHAR 1
 #define SRE(F) sre_ucs1_##F
-#include "sre_lib.h"
+#include "third_party/python/Modules/sre_lib.inc"
 
 /* generate 16-bit unicode version */
 
 #define SRE_CHAR Py_UCS2
 #define SIZEOF_SRE_CHAR 2
 #define SRE(F) sre_ucs2_##F
-#include "sre_lib.h"
+#include "third_party/python/Modules/sre_lib.inc"
 
 /* generate 32-bit unicode version */
 
 #define SRE_CHAR Py_UCS4
 #define SIZEOF_SRE_CHAR 4
 #define SRE(F) sre_ucs4_##F
-#include "sre_lib.h"
+#include "third_party/python/Modules/sre_lib.inc"
 
 /* -------------------------------------------------------------------- */
 /* factories and destructors */
@@ -303,7 +312,7 @@ LOCAL(void)
 state_reset(SRE_STATE* state)
 {
     /* FIXME: dynamic! */
-    /*memset(state->mark, 0, sizeof(*state->mark) * SRE_MARK_SIZE);*/
+    /*bzero(state->mark, sizeof(*state->mark) * SRE_MARK_SIZE);*/
 
     state->lastmark = -1;
     state->lastindex = -1;
@@ -362,7 +371,7 @@ state_init(SRE_STATE* state, PatternObject* pattern, PyObject* string,
     int isbytes, charsize;
     void* ptr;
 
-    memset(state, 0, sizeof(SRE_STATE));
+    bzero(state, sizeof(SRE_STATE));
 
     state->mark = PyMem_New(void *, pattern->groups * 2);
     if (!state->mark) {