Adding cython v0.20.2 in third-party.

third_party/cython/src/bin/cython_freeze

+#!/usr/bin/env python
+"""
+Create a C file for embedding one or more Cython source files.
+Requires Cython 0.11.2 (or perhaps newer).
+
+See Demos/freeze/README.txt for more details.
+"""
+
+import optparse
+from os.path import splitext, basename
+
+usage= '%prog [-o outfile] [-p] module [module ...]'
+description = 'Create a C file for embedding Cython modules.'
+p = optparse.OptionParser(usage=usage, description=description)
+p.add_option('-o', '--output', metavar='FILE',
+        help='write output to FILE instead of standard output')
+p.add_option('-p', '--pymain', action='store_true', default=False,
+        help='do not automatically run the first module as __main__')
+
+options, args = p.parse_args()
+
+if len(args) < 1:
+    p.print_help()
+    p.exit(1)
+
+if options.output:
+    import sys
+    old_stdout = sys.stdout
+    sys.stdout = open(options.output, 'w')
+
+modules = [basename(splitext(x)[0]).replace('.', '_') for x in args]
+
+print """\
+#include <Python.h>
+#include <locale.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#ifdef __FreeBSD__
+#include <floatingpoint.h>
+#endif
+
+#if PY_MAJOR_VERSION < 3
+# define MODINIT(name)  init ## name
+#else
+# define MODINIT(name)  PyInit_ ## name
+#endif
+"""
+
+for name in modules:
+    print "PyMODINIT_FUNC MODINIT(%s) (void);" % name
+
+print """
+static struct _inittab inittab[] = {"""
+
+for name in modules:
+    print '    {"%(name)s", MODINIT(%(name)s)},' % {'name' : name}
+
+print """    {NULL, NULL}
+};
+""",
+
+if not options.pymain:
+    print "\nextern int __pyx_module_is_main_%s;" % modules[0]
+
+print """
+#if PY_MAJOR_VERSION < 3
+int main(int argc, char** argv) {
+#elif defined(WIN32) || defined(MS_WINDOWS)
+int wmain(int argc, wchar_t **argv) {
+#else
+static int python_main(int argc, wchar_t **argv) {
+#endif
+""",
+if not options.pymain:
+    print """\
+    PyObject *m = NULL;
+    int r = 0;
+""",
+print """\
+    /* 754 requires that FP exceptions run in "no stop" mode by default,
+     * and until C vendors implement C99's ways to control FP exceptions,
+     * Python requires non-stop mode.  Alas, some platforms enable FP
+     * exceptions by default.  Here we disable them.
+     */
+#ifdef __FreeBSD__
+    fp_except_t m;
+
+    m = fpgetmask();
+    fpsetmask(m & ~FP_X_OFL);
+#endif
+    if (PyImport_ExtendInittab(inittab)) {
+        fprintf(stderr, "No memory\\n");
+        exit(1);
+    }
+""",
+if options.pymain:
+    print """\
+    return Py_Main(argc, argv);
+}
+"""
+else:
+    print """\
+    Py_SetProgramName(argv[0]);
+    Py_Initialize();
+    PySys_SetArgv(argc, argv);
+    __pyx_module_is_main_%(main)s = 1;
+    m = PyImport_ImportModule(inittab[0].name);
+    if (!m) {
+        r = 1;
+        PyErr_Print(); /* This exits with the right code if SystemExit. */
+#if PY_MAJOR_VERSION < 3
+        if (Py_FlushLine())
+            PyErr_Clear();
+#endif
+    }
+    Py_XDECREF(m);
+    Py_Finalize();
+    return r;
+}
+""" % {'main' : modules[0]},
+
+print r"""
+#if PY_MAJOR_VERSION >= 3 && !defined(WIN32) && !defined(MS_WINDOWS)
+static wchar_t*
+char2wchar(char* arg)
+{
+        wchar_t *res;
+#ifdef HAVE_BROKEN_MBSTOWCS
+        /* Some platforms have a broken implementation of
+         * mbstowcs which does not count the characters that
+         * would result from conversion.  Use an upper bound.
+         */
+        size_t argsize = strlen(arg);
+#else
+        size_t argsize = mbstowcs(NULL, arg, 0);
+#endif
+        size_t count;
+        unsigned char *in;
+        wchar_t *out;
+#ifdef HAVE_MBRTOWC
+        mbstate_t mbs;
+#endif
+        if (argsize != (size_t)-1) {
+                res = (wchar_t *)malloc((argsize+1)*sizeof(wchar_t));
+                if (!res)
+                        goto oom;
+                count = mbstowcs(res, arg, argsize+1);
+                if (count != (size_t)-1) {
+                        wchar_t *tmp;
+                        /* Only use the result if it contains no
+                           surrogate characters. */
+                        for (tmp = res; *tmp != 0 &&
+                                     (*tmp < 0xd800 || *tmp > 0xdfff); tmp++)
+                                ;
+                        if (*tmp == 0)
+                                return res;
+                }
+                free(res);
+        }
+        /* Conversion failed. Fall back to escaping with surrogateescape. */
+#ifdef HAVE_MBRTOWC
+        /* Try conversion with mbrtwoc (C99), and escape non-decodable bytes. */
+
+        /* Overallocate; as multi-byte characters are in the argument, the
+           actual output could use less memory. */
+        argsize = strlen(arg) + 1;
+        res = malloc(argsize*sizeof(wchar_t));
+        if (!res) goto oom;
+        in = (unsigned char*)arg;
+        out = res;
+        memset(&mbs, 0, sizeof mbs);
+        while (argsize) {
+                size_t converted = mbrtowc(out, (char*)in, argsize, &mbs);
+                if (converted == 0)
+                        /* Reached end of string; null char stored. */
+                        break;
+                if (converted == (size_t)-2) {
+                        /* Incomplete character. This should never happen,
+                           since we provide everything that we have -
+                           unless there is a bug in the C library, or I
+                           misunderstood how mbrtowc works. */
+                        fprintf(stderr, "unexpected mbrtowc result -2\n");
+                        return NULL;
+                }
+                if (converted == (size_t)-1) {
+                        /* Conversion error. Escape as UTF-8b, and start over
+                           in the initial shift state. */
+                        *out++ = 0xdc00 + *in++;
+                        argsize--;
+                        memset(&mbs, 0, sizeof mbs);
+                        continue;
+                }
+                if (*out >= 0xd800 && *out <= 0xdfff) {
+                        /* Surrogate character.  Escape the original
+                           byte sequence with surrogateescape. */
+                        argsize -= converted;
+                        while (converted--)
+                                *out++ = 0xdc00 + *in++;
+                        continue;
+                }
+                /* successfully converted some bytes */
+                in += converted;
+                argsize -= converted;
+                out++;
+        }
+#else
+        /* Cannot use C locale for escaping; manually escape as if charset
+           is ASCII (i.e. escape all bytes > 128. This will still roundtrip
+           correctly in the locale's charset, which must be an ASCII superset. */
+        res = malloc((strlen(arg)+1)*sizeof(wchar_t));
+        if (!res) goto oom;
+        in = (unsigned char*)arg;
+        out = res;
+        while(*in)
+                if(*in < 128)
+                        *out++ = *in++;
+                else
+                        *out++ = 0xdc00 + *in++;
+        *out = 0;
+#endif
+        return res;
+oom:
+        fprintf(stderr, "out of memory\n");
+        return NULL;
+}
+
+int
+main(int argc, char **argv)
+{
+        wchar_t **argv_copy = (wchar_t **)malloc(sizeof(wchar_t*)*argc);
+        /* We need a second copies, as Python might modify the first one. */
+        wchar_t **argv_copy2 = (wchar_t **)malloc(sizeof(wchar_t*)*argc);
+        int i, res;
+        char *oldloc;
+        if (!argv_copy || !argv_copy2) {
+                fprintf(stderr, "out of memory\n");
+                return 1;
+        }
+        oldloc = strdup(setlocale(LC_ALL, NULL));
+        setlocale(LC_ALL, "");
+        for (i = 0; i < argc; i++) {
+                argv_copy2[i] = argv_copy[i] = char2wchar(argv[i]);
+                if (!argv_copy[i])
+                        return 1;
+        }
+        setlocale(LC_ALL, oldloc);
+        free(oldloc);
+        res = python_main(argc, argv_copy);
+        for (i = 0; i < argc; i++) {
+                free(argv_copy2[i]);
+        }
+        free(argv_copy);
+        free(argv_copy2);
+        return res;
+}
+#endif"""