text: /* Return the initial module search path. */
  
  #include "Python.h"
  #include "osdefs.h"
  
  #include <sys/types.h>
  #include <string.h>
  
  #ifdef __APPLE__
  #include <mach-o/dyld.h>
  #endif
  
  /* Search in some common locations for the associated Python libraries.
   *
   * Two directories must be found, the platform independent directory
   * (prefix), containing the common .py and .pyc files, and the platform
   * dependent directory (exec_prefix), containing the shared library
   * modules.  Note that prefix and exec_prefix can be the same directory,
   * but for some installations, they are different.
   *
   * Py_GetPath() carries out separate searches for prefix and exec_prefix.
   * Each search tries a number of different locations until a ``landmark''
   * file or directory is found.  If no prefix or exec_prefix is found, a
   * warning message is issued and the preprocessor defined PREFIX and
   * EXEC_PREFIX are used (even though they will not work); python carries on
   * as best as is possible, but most imports will fail.
   *
   * Before any searches are done, the location of the executable is
   * determined.  If argv[0] has one or more slashes in it, it is used
   * unchanged.  Otherwise, it must have been invoked from the shell's path,
   * so we search $PATH for the named executable and use that.  If the
   * executable was not found on $PATH (or there was no $PATH environment
   * variable), the original argv[0] string is used.
   *
   * Next, the executable location is examined to see if it is a symbolic
   * link.  If so, the link is chased (correctly interpreting a relative
   * pathname if one is found) and the directory of the link target is used.
   *
   * Finally, argv0_path is set to the directory containing the executable
   * (i.e. the last component is stripped).
   *
   * With argv0_path in hand, we perform a number of steps.  The same steps
   * are performed for prefix and for exec_prefix, but with a different
   * landmark.
   *
   * Step 1. Are we running python out of the build directory?  This is
   * checked by looking for a different kind of landmark relative to
   * argv0_path.  For prefix, the landmark's path is derived from the VPATH
   * preprocessor variable (taking into account that its value is almost, but
   * not quite, what we need).  For exec_prefix, the landmark is
   * Modules/Setup.  If the landmark is found, we're done.
   *
   * For the remaining steps, the prefix landmark will always be
   * lib/python$VERSION/os.py and the exec_prefix will always be
   * lib/python$VERSION/lib-dynload, where $VERSION is Python's version
   * number as supplied by the Makefile.  Note that this means that no more
   * build directory checking is performed; if the first step did not find
   * the landmarks, the assumption is that python is running from an
   * installed setup.
   *
   * Step 2. See if the $PYTHONHOME environment variable points to the
   * installed location of the Python libraries.  If $PYTHONHOME is set, then
   * it points to prefix and exec_prefix.  $PYTHONHOME can be a single
   * directory, which is used for both, or the prefix and exec_prefix
   * directories separated by a colon.
   *
   * Step 3. Try to find prefix and exec_prefix relative to argv0_path,
   * backtracking up the path until it is exhausted.  This is the most common
   * step to succeed.  Note that if prefix and exec_prefix are different,
   * exec_prefix is more likely to be found; however if exec_prefix is a
   * subdirectory of prefix, both will be found.
   *
   * Step 4. Search the directories pointed to by the preprocessor variables
   * PREFIX and EXEC_PREFIX.  These are supplied by the Makefile but can be
   * passed in as options to the configure script.
   *
   * That's it!
   *
   * Well, almost.  Once we have determined prefix and exec_prefix, the
   * preprocessor variable PYTHONPATH is used to construct a path.  Each
   * relative path on PYTHONPATH is prefixed with prefix.  Then the directory
   * containing the shared library modules is appended.  The environment
   * variable $PYTHONPATH is inserted in front of it all.  Finally, the
   * prefix and exec_prefix globals are tweaked so they reflect the values
   * expected by other code, by stripping the "lib/python$VERSION/..." stuff
   * off.  If either points to the build directory, the globals are reset to
   * the corresponding preprocessor variables (so sys.prefix will reflect the
   * installation location, even though sys.path points into the build
   * directory).  This seems to make more sense given that currently the only
   * known use of sys.prefix and sys.exec_prefix is for the ILU installation
   * process to find the installed Python tree.
   */
  
  #ifdef __cplusplus
   extern "C" {
  #endif
  
  
  #ifndef VERSION
  #define VERSION "2.1"
  #endif
  
  #ifndef VPATH
  #define VPATH "."
  #endif
  
  #ifndef PREFIX
  #  ifdef __VMS
  #    define PREFIX ""
  #  else
  #    define PREFIX "/usr/local"
  #  endif
  #endif
  
  #ifndef EXEC_PREFIX
  #define EXEC_PREFIX PREFIX
  #endif
  
  #ifndef PYTHONPATH
  #define PYTHONPATH PREFIX "/lib/python" VERSION ":" \
                EXEC_PREFIX "/lib/python" VERSION "/lib-dynload"
  #endif
  
  #ifndef LANDMARK
  #define LANDMARK L"os.py"
  #endif
  
  static wchar_t prefix[MAXPATHLEN+1];
  static wchar_t exec_prefix[MAXPATHLEN+1];
  static wchar_t progpath[MAXPATHLEN+1];
  static wchar_t *module_search_path = NULL;
  static wchar_t lib_python[] = L"lib/python" VERSION;
  
  /* In principle, this should use HAVE__WSTAT, and _wstat
     should be detected by autoconf. However, no current
     POSIX system provides that function, so testing for
     it is pointless. */
  #ifndef MS_WINDOWS
  static int
  _wstat(const wchar_t* path, struct stat *buf)
  {
      char fname[PATH_MAX];
      size_t res = wcstombs(fname, path, sizeof(fname));
      if (res == (size_t)-1) {
  	errno = EINVAL;
  	return -1;
      }
      return stat(fname, buf);
  }
  #endif
  
  #ifndef MS_WINDOWS
  static wchar_t*
  _wgetcwd(wchar_t *buf, size_t size)
  {
      char fname[PATH_MAX];
      if (getcwd(fname, PATH_MAX) == NULL)
  	return NULL;
      if (mbstowcs(buf, fname, size) >= size) {
  	errno = ERANGE;
  	return NULL;
      }
      return buf;
  }
  #endif
  
  #ifdef HAVE_READLINK
  int 
  _Py_wreadlink(const wchar_t *path, wchar_t *buf, size_t bufsiz)
  {
      char cbuf[PATH_MAX];
      char cpath[PATH_MAX];
      int res;
      size_t r1 = wcstombs(cpath, path, PATH_MAX);
      if (r1 == (size_t)-1 || r1 >= PATH_MAX) {
  	errno = EINVAL;
  	return -1;
      }
      res = (int)readlink(cpath, cbuf, PATH_MAX);
      if (res == -1)
  	return -1;
      if (res == PATH_MAX) {
  	errno = EINVAL;
  	return -1;
      }
      cbuf[res] = '\0'; /* buf will be null terminated */
      r1 = mbstowcs(buf, cbuf, bufsiz);
      if (r1 == -1) {
  	errno = EINVAL;
  	return -1;
      }
      return (int)r1;
      
  }
  #endif
  
  static void
  reduce(wchar_t *dir)
  {
      size_t i = wcslen(dir);
      while (i > 0 && dir[i] != SEP)
          --i;
      dir[i] = '\0';
  }
  
  
  static int
  isfile(wchar_t *filename)          /* Is file, not directory */
  {
      struct stat buf;
      if (_wstat(filename, &buf) != 0)
          return 0;
      if (!S_ISREG(buf.st_mode))
          return 0;
      return 1;
  }
  
  
  static int
  ismodule(wchar_t *filename)        /* Is module -- check for .pyc/.pyo too */
  {
      if (isfile(filename))
          return 1;
  
      /* Check for the compiled version of prefix. */
      if (wcslen(filename) < MAXPATHLEN) {
          wcscat(filename, Py_OptimizeFlag ? L"o" : L"c");
          if (isfile(filename))
              return 1;
      }
      return 0;
  }
  
  
  static int
  isxfile(wchar_t *filename)         /* Is executable file */
  {
      struct stat buf;
      if (_wstat(filename, &buf) != 0)
          return 0;
      if (!S_ISREG(buf.st_mode))
          return 0;
      if ((buf.st_mode & 0111) == 0)
          return 0;
      return 1;
  }
  
  
  static int
  isdir(wchar_t *filename)                   /* Is directory */
  {
      struct stat buf;
      if (_wstat(filename, &buf) != 0)
          return 0;
      if (!S_ISDIR(buf.st_mode))
          return 0;
      return 1;
  }
  
  
  /* Add a path component, by appending stuff to buffer.
     buffer must have at least MAXPATHLEN + 1 bytes allocated, and contain a
     NUL-terminated string with no more than MAXPATHLEN characters (not counting
     the trailing NUL).  It's a fatal error if it contains a string longer than
     that (callers must be careful!).  If these requirements are met, it's
     guaranteed that buffer will still be a NUL-terminated string with no more
     than MAXPATHLEN characters at exit.  If stuff is too long, only as much of
     stuff as fits will be appended.
  */
  static void
  joinpath(wchar_t *buffer, wchar_t *stuff)
  {
      size_t n, k;
      if (stuff[0] == SEP)
          n = 0;
      else {
          n = wcslen(buffer);
          if (n > 0 && buffer[n-1] != SEP && n < MAXPATHLEN)
              buffer[n++] = SEP;
      }
      if (n > MAXPATHLEN)
      	Py_FatalError("buffer overflow in getpath.c's joinpath()");
      k = wcslen(stuff);
      if (n + k > MAXPATHLEN)
          k = MAXPATHLEN - n;
      wcsncpy(buffer+n, stuff, k);
      buffer[n+k] = '\0';
  }
  
  /* copy_absolute requires that path be allocated at least
     MAXPATHLEN + 1 bytes and that p be no more than MAXPATHLEN bytes. */
  static void
  copy_absolute(wchar_t *path, wchar_t *p)
  {
      if (p[0] == SEP)
          wcscpy(path, p);
      else {
          _wgetcwd(path, MAXPATHLEN);
          if (p[0] == '.' && p[1] == SEP)
              p += 2;
          joinpath(path, p);
      }
  }
  
  /* absolutize() requires that path be allocated at least MAXPATHLEN+1 bytes. */
  static void
  absolutize(wchar_t *path)
  {
      wchar_t buffer[MAXPATHLEN + 1];
  
      if (path[0] == SEP)
          return;
      copy_absolute(buffer, path);
      wcscpy(path, buffer);
  }
  
  /* search_for_prefix requires that argv0_path be no more than MAXPATHLEN
     bytes long.
  */
  static int
  search_for_prefix(wchar_t *argv0_path, wchar_t *home)
  {
      size_t n;
      wchar_t *vpath;
  
      /* If PYTHONHOME is set, we believe it unconditionally */
      if (home) {
          wchar_t *delim;
          wcsncpy(prefix, home, MAXPATHLEN);
          delim = wcschr(prefix, DELIM);
          if (delim)
              *delim = L'\0';
          joinpath(prefix, lib_python);
          joinpath(prefix, LANDMARK);
          return 1;
      }
  
      /* Check to see if argv[0] is in the build directory */
      wcscpy(prefix, argv0_path);
      joinpath(prefix, L"Modules/Setup");
      if (isfile(prefix)) {
          /* Check VPATH to see if argv0_path is in the build directory. */
          vpath = L"" VPATH;
          wcscpy(prefix, argv0_path);
          joinpath(prefix, vpath);
          joinpath(prefix, L"Lib");
          joinpath(prefix, LANDMARK);
          if (ismodule(prefix))
              return -1;
      }
  
      /* Search from argv0_path, until root is found */
      copy_absolute(prefix, argv0_path);
      do {
          n = wcslen(prefix);
          joinpath(prefix, lib_python);
          joinpath(prefix, LANDMARK);
          if (ismodule(prefix))
              return 1;
          prefix[n] = L'\0';
          reduce(prefix);
      } while (prefix[0]);
  
      /* Look at configure's PREFIX */
      wcsncpy(prefix, L"" PREFIX, MAXPATHLEN);
      joinpath(prefix, lib_python);
      joinpath(prefix, LANDMARK);
      if (ismodule(prefix))
          return 1;
  
      /* Fail */
      return 0;
  }
  
  
  /* search_for_exec_prefix requires that argv0_path be no more than
     MAXPATHLEN bytes long.
  */
  static int
  search_for_exec_prefix(wchar_t *argv0_path, wchar_t *home)
  {
      size_t n;
  
      /* If PYTHONHOME is set, we believe it unconditionally */
      if (home) {
          wchar_t *delim;
          delim = wcschr(home, DELIM);
          if (delim)
              wcsncpy(exec_prefix, delim+1, MAXPATHLEN);
          else
              wcsncpy(exec_prefix, home, MAXPATHLEN);
          joinpath(exec_prefix, lib_python);
          joinpath(exec_prefix, L"lib-dynload");
          return 1;
      }
  
      /* Check to see if argv[0] is in the build directory */
      wcscpy(exec_prefix, argv0_path);
      joinpath(exec_prefix, L"Modules/Setup");
      if (isfile(exec_prefix)) {
          reduce(exec_prefix);
          return -1;
      }
  
      /* Search from argv0_path, until root is found */
      copy_absolute(exec_prefix, argv0_path);
      do {
          n = wcslen(exec_prefix);
          joinpath(exec_prefix, lib_python);
          joinpath(exec_prefix, L"lib-dynload");
          if (isdir(exec_prefix))
              return 1;
          exec_prefix[n] = L'\0';
          reduce(exec_prefix);
      } while (exec_prefix[0]);
  
      /* Look at configure's EXEC_PREFIX */
      wcsncpy(exec_prefix, L"" EXEC_PREFIX, MAXPATHLEN);
      joinpath(exec_prefix, lib_python);
      joinpath(exec_prefix, L"lib-dynload");
      if (isdir(exec_prefix))
          return 1;
  
      /* Fail */
      return 0;
  }
  
  
  static void
  calculate_path(void)
  {
      extern wchar_t *Py_GetProgramName(void);
  
      static wchar_t delimiter[2] = {DELIM, '\0'};
      static wchar_t separator[2] = {SEP, '\0'};
      wchar_t *pythonpath = L"" PYTHONPATH;
      char *_rtpypath = Py_GETENV("PYTHONPATH"); /* XXX use wide version on Windows */
      wchar_t rtpypath[MAXPATHLEN+1];
      wchar_t *home = Py_GetPythonHome();
      char *_path = getenv("PATH");
      wchar_t wpath[MAXPATHLEN+1];
      wchar_t *path = NULL;
      wchar_t *prog = Py_GetProgramName();
      wchar_t argv0_path[MAXPATHLEN+1];
      wchar_t zip_path[MAXPATHLEN+1];
      int pfound, efound; /* 1 if found; -1 if found build directory */
      wchar_t *buf;
      size_t bufsz;
      size_t prefixsz;
      wchar_t *defpath = pythonpath;
  #ifdef WITH_NEXT_FRAMEWORK
      NSModule pythonModule;
  #endif
  #ifdef __APPLE__
  #if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_4
      uint32_t nsexeclength = MAXPATHLEN;
  #else
      unsigned long nsexeclength = MAXPATHLEN;
  #endif
  	char execpath[MAXPATHLEN+1];
  #endif
  
      if (_path) {
  	    size_t r = mbstowcs(wpath, _path, MAXPATHLEN+1);
  	    path = wpath;
  	    if (r == (size_t)-1 || r > MAXPATHLEN) {
  		    /* Could not convert PATH, or it's too long. */
  		    path = NULL;
  	    }
      }
  
  	/* If there is no slash in the argv0 path, then we have to
  	 * assume python is on the user's $PATH, since there's no
  	 * other way to find a directory to start the search from.  If
  	 * $PATH isn't exported, you lose.
  	 */
  	if (wcschr(prog, SEP))
  		wcsncpy(progpath, prog, MAXPATHLEN);
  #ifdef __APPLE__
       /* On Mac OS X, if a script uses an interpreter of the form
        * "#!/opt/python2.3/bin/python", the kernel only passes "python"
        * as argv[0], which falls through to the $PATH search below.
        * If /opt/python2.3/bin isn't in your path, or is near the end,
        * this algorithm may incorrectly find /usr/bin/python. To work
        * around this, we can use _NSGetExecutablePath to get a better
        * hint of what the intended interpreter was, although this
        * will fail if a relative path was used. but in that case,
        * absolutize() should help us out below
        */
  	else if(0 == _NSGetExecutablePath(execpath, &nsexeclength) && execpath[0] == SEP) {
  		size_t r = mbstowcs(progpath, execpath, MAXPATHLEN+1);
  		if (r == (size_t)-1 || r > MAXPATHLEN) {
  			/* Could not convert execpath, or it's too long. */
  			progpath[0] = '\0';
  		}
  	}
  #endif /* __APPLE__ */
  	else if (path) {
  		while (1) {
  			wchar_t *delim = wcschr(path, DELIM);
  
  			if (delim) {
  				size_t len = delim - path;
  				if (len > MAXPATHLEN)
  					len = MAXPATHLEN;
  				wcsncpy(progpath, path, len);
  				*(progpath + len) = '\0';
  			}
  			else
  				wcsncpy(progpath, path, MAXPATHLEN);
  
  			joinpath(progpath, prog);
  			if (isxfile(progpath))
  				break;
  
  			if (!delim) {
  				progpath[0] = L'\0';
  				break;
  			}
  			path = delim + 1;
  		}
  	}
  	else
  		progpath[0] = '\0';
  	if (progpath[0] != SEP)
  		absolutize(progpath);
  	wcsncpy(argv0_path, progpath, MAXPATHLEN);
  	argv0_path[MAXPATHLEN] = '\0';
  
  #ifdef WITH_NEXT_FRAMEWORK
  	/* On Mac OS X we have a special case if we're running from a framework.
  	** This is because the python home should be set relative to the library,
  	** which is in the framework, not relative to the executable, which may
  	** be outside of the framework. Except when we're in the build directory...
  	*/
      pythonModule = NSModuleForSymbol(NSLookupAndBindSymbol("_Py_Initialize"));
      /* Use dylib functions to find out where the framework was loaded from */
      buf = (wchar_t *)NSLibraryNameForModule(pythonModule);
      if (buf != NULL) {
          /* We're in a framework. */
          /* See if we might be in the build directory. The framework in the
          ** build directory is incomplete, it only has the .dylib and a few
          ** needed symlinks, it doesn't have the Lib directories and such.
          ** If we're running with the framework from the build directory we must
          ** be running the interpreter in the build directory, so we use the
          ** build-directory-specific logic to find Lib and such.
          */
          wcsncpy(argv0_path, buf, MAXPATHLEN);
          reduce(argv0_path);
          joinpath(argv0_path, lib_python);
          joinpath(argv0_path, LANDMARK);
          if (!ismodule(argv0_path)) {
                  /* We are in the build directory so use the name of the
                     executable - we know that the absolute path is passed */
                  wcsncpy(argv0_path, prog, MAXPATHLEN);
          }
          else {
                  /* Use the location of the library as the progpath */
                  wcsncpy(argv0_path, buf, MAXPATHLEN);
          }
      }
  #endif
  
  #if HAVE_READLINK
      {
          wchar_t tmpbuffer[MAXPATHLEN+1];
          int linklen = _Py_wreadlink(progpath, tmpbuffer, MAXPATHLEN);
          while (linklen != -1) {
              if (tmpbuffer[0] == SEP)
                  /* tmpbuffer should never be longer than MAXPATHLEN,
                     but extra check does not hurt */
                  wcsncpy(argv0_path, tmpbuffer, MAXPATHLEN);
              else {
                  /* Interpret relative to progpath */
                  reduce(argv0_path);
                  joinpath(argv0_path, tmpbuffer);
              }
              linklen = _Py_wreadlink(argv0_path, tmpbuffer, MAXPATHLEN);
          }
      }
  #endif /* HAVE_READLINK */
  
      reduce(argv0_path);
      /* At this point, argv0_path is guaranteed to be less than
         MAXPATHLEN bytes long.
      */
  
      if (!(pfound = search_for_prefix(argv0_path, home))) {
          if (!Py_FrozenFlag)
              fprintf(stderr,
                  "Could not find platform independent libraries <prefix>\n");
          wcsncpy(prefix, L"" PREFIX, MAXPATHLEN);
          joinpath(prefix, lib_python);
      }
      else
          reduce(prefix);
  
      wcsncpy(zip_path, prefix, MAXPATHLEN);
      zip_path[MAXPATHLEN] = L'\0';
      if (pfound > 0) { /* Use the reduced prefix returned by Py_GetPrefix() */
          reduce(zip_path);
          reduce(zip_path);
      }
      else
          wcsncpy(zip_path, L"" PREFIX, MAXPATHLEN);
      joinpath(zip_path, L"lib/python00.zip");
      bufsz = wcslen(zip_path);	/* Replace "00" with version */
      zip_path[bufsz - 6] = VERSION[0];
      zip_path[bufsz - 5] = VERSION[2];
  
      if (!(efound = search_for_exec_prefix(argv0_path, home))) {
          if (!Py_FrozenFlag)
              fprintf(stderr,
                  "Could not find platform dependent libraries <exec_prefix>\n");
          wcsncpy(exec_prefix, L"" EXEC_PREFIX, MAXPATHLEN);
          joinpath(exec_prefix, L"lib/lib-dynload");
      }
      /* If we found EXEC_PREFIX do *not* reduce it!  (Yet.) */
  
      if ((!pfound || !efound) && !Py_FrozenFlag)
          fprintf(stderr,
                  "Consider setting $PYTHONHOME to <prefix>[:<exec_prefix>]\n");
  
      /* Calculate size of return buffer.
       */
      bufsz = 0;
  
      if (_rtpypath) {
  	size_t s = mbstowcs(rtpypath, _rtpypath, sizeof(rtpypath)/sizeof(wchar_t));
  	if (s == (size_t)-1 || s >=sizeof(rtpypath))
  	    /* XXX deal with errors more gracefully */
  	    _rtpypath = NULL;
  	if (_rtpypath)
  	    bufsz += wcslen(rtpypath) + 1;
      }
  
      prefixsz = wcslen(prefix) + 1;
  
      while (1) {
          wchar_t *delim = wcschr(defpath, DELIM);
  
          if (defpath[0] != SEP)
              /* Paths are relative to prefix */
              bufsz += prefixsz;
  
          if (delim)
              bufsz += delim - defpath + 1;
          else {
              bufsz += wcslen(defpath) + 1;
              break;
          }
          defpath = delim + 1;
      }
  
      bufsz += wcslen(zip_path) + 1;
      bufsz += wcslen(exec_prefix) + 1;
  
      /* This is the only malloc call in this file */
      buf = (wchar_t *)PyMem_Malloc(bufsz*sizeof(wchar_t));
  
      if (buf == NULL) {
          /* We can't exit, so print a warning and limp along */
          fprintf(stderr, "Not enough memory for dynamic PYTHONPATH.\n");
          fprintf(stderr, "Using default static PYTHONPATH.\n");
          module_search_path = L"" PYTHONPATH;
      }
      else {
          /* Run-time value of $PYTHONPATH goes first */
          if (_rtpypath) {
              wcscpy(buf, rtpypath);
              wcscat(buf, delimiter);
          }
          else
              buf[0] = '\0';
  
          /* Next is the default zip path */
          wcscat(buf, zip_path);
          wcscat(buf, delimiter);
  
          /* Next goes merge of compile-time $PYTHONPATH with
           * dynamically located prefix.
           */
          defpath = pythonpath;
          while (1) {
              wchar_t *delim = wcschr(defpath, DELIM);
  
              if (defpath[0] != SEP) {
                  wcscat(buf, prefix);
                  wcscat(buf, separator);
              }
  
              if (delim) {
                  size_t len = delim - defpath + 1;
                  size_t end = wcslen(buf) + len;
                  wcsncat(buf, defpath, len);
                  *(buf + end) = '\0';
              }
              else {
                  wcscat(buf, defpath);
                  break;
              }
              defpath = delim + 1;
          }
          wcscat(buf, delimiter);
  
          /* Finally, on goes the directory for dynamic-load modules */
          wcscat(buf, exec_prefix);
  
          /* And publish the results */
          module_search_path = buf;
      }
  
      /* Reduce prefix and exec_prefix to their essence,
       * e.g. /usr/local/lib/python1.5 is reduced to /usr/local.
       * If we're loading relative to the build directory,
       * return the compiled-in defaults instead.
       */
      if (pfound > 0) {
          reduce(prefix);
          reduce(prefix);
  	/* The prefix is the root directory, but reduce() chopped
  	 * off the "/". */
  	if (!prefix[0])
  		wcscpy(prefix, separator);
      }
      else
          wcsncpy(prefix, L"" PREFIX, MAXPATHLEN);
  
      if (efound > 0) {
          reduce(exec_prefix);
          reduce(exec_prefix);
          reduce(exec_prefix);
  	if (!exec_prefix[0])
  		wcscpy(exec_prefix, separator);
      }
      else
          wcsncpy(exec_prefix, L"" EXEC_PREFIX, MAXPATHLEN);
  }
  
  
  /* External interface */
  
  wchar_t *
  Py_GetPath(void)
  {
      if (!module_search_path)
          calculate_path();
      return module_search_path;
  }
  
  wchar_t *
  Py_GetPrefix(void)
  {
      if (!module_search_path)
          calculate_path();
      return prefix;
  }
  
  wchar_t *
  Py_GetExecPrefix(void)
  {
      if (!module_search_path)
          calculate_path();
      return exec_prefix;
  }
  
  wchar_t *
  Py_GetProgramFullPath(void)
  {
      if (!module_search_path)
          calculate_path();
      return progpath;
  }
  
  
  #ifdef __cplusplus
  }
  #endif
  
  