Added build config to get python.com

Modules/Setup and Modules/Setup.local contain the build recipes for
various extensions, wrote a custom script to translate them for
python.mk. Modules/config.c needs to be changed if any extensions are
removed or added.

Most of the source modifications are for missing headers or compile time
build vars like ABIFLAGS.

Created separate mk files for the C extensions and the Python stdlib.
Can use find for adding the python files to the APE ZIP store, but right
now necessary files are just hardcoded.

python.com loads but some build configs are still missing (showing 1 Jan
1970 as time of compilation).

third_party/python/Python/dynload_shlib.c

@@ -17,7 +17,7 @@
 #endif /* NetBSD */
 
 #ifdef HAVE_DLFCN_H
-#include <dlfcn.h>
+#include "libc/runtime/dlfcn.h"
 #endif
 
 #if (defined(__OpenBSD__) || defined(__NetBSD__)) && !defined(__ELF__)

third_party/python/Python/fileutils.c

@@ -1,6 +1,6 @@
 #include "Python.h"
 #include "osdefs.h"
-#include <locale.h>
+#include "libc/unicode/locale.h"
 
 #ifdef MS_WINDOWS
 #  include <malloc.h>
@@ -13,7 +13,8 @@ extern int winerror_to_errno(int);
 #endif
 
 #ifdef HAVE_SYS_IOCTL_H
-#include <sys/ioctl.h>
+#include "libc/calls/calls.h"
+#include "libc/sysv/consts/fd.h"
 #endif
 
 #ifdef HAVE_FCNTL_H

third_party/python/Python/formatter_unicode.c

@@ -3,7 +3,7 @@
    of int.__float__, etc., that take and return unicode objects */
 
 #include "Python.h"
-#include <locale.h>
+#include "libc/unicode/locale.h"
 
 /* Raises an exception about an unknown presentation type for this
  * type. */

third_party/python/Python/frozenmain.c

@@ -2,7 +2,7 @@
 /* Python interpreter main program for frozen scripts */
 
 #include "Python.h"
-#include <locale.h>
+#include "libc/unicode/locale.h"
 
 #ifdef MS_WINDOWS
 extern void PyWinFreeze_ExeInit(void);

third_party/python/Python/pylifecycle.c

@@ -14,7 +14,8 @@
 #include "ast.h"
 #include "marshal.h"
 #include "osdefs.h"
-#include <locale.h>
+#include "libc/unicode/locale.h"
+#include "libc/calls/sigbits.h"
 
 #ifdef HAVE_SIGNAL_H
 #include <signal.h>

third_party/python/Python/pystate.c

@@ -23,7 +23,7 @@ to avoid the expense of doing their own locking).
 
 #ifdef HAVE_DLOPEN
 #ifdef HAVE_DLFCN_H
-#include <dlfcn.h>
+#include "libc/runtime/dlfcn.h"
 #endif
 #if !HAVE_DECL_RTLD_LAZY
 #define RTLD_LAZY 1

third_party/python/Python/pystrtod.c

@@ -1,7 +1,7 @@
 /* -*- Mode: C; c-file-style: "python" -*- */
 
 #include <Python.h>
-#include <locale.h>
+#include "libc/unicode/locale.h"
 
 /* Case-insensitive string match used for nan and inf detection; t should be
    lower-case.  Returns 1 for a successful match, 0 otherwise. */

third_party/python/Python/pythonrun.c

@@ -15,7 +15,7 @@
 #include "ast.h"
 #include "marshal.h"
 #include "osdefs.h"
-#include <locale.h>
+#include "libc/unicode/locale.h"
 
 #ifdef HAVE_SIGNAL_H
 #include <signal.h>

third_party/python/Python/sysmodule.c

@@ -20,7 +20,7 @@ Data members:
 #include "pythread.h"
 
 #include "osdefs.h"
-#include <locale.h>
+#include "libc/unicode/locale.h"
 
 #ifdef MS_WINDOWS
 #define WIN32_LEAN_AND_MEAN