ltmain.sh

  # Parse options
  func_parse_lt_options \"\$0\" \${1+\"\$@\"}

  # Find the directory that this script lives in.
  thisdir=\`\$ECHO \"\$file\" | $SED 's%/[^/]*$%%'\`
  test \"x\$thisdir\" = \"x\$file\" && thisdir=.

  # Follow symbolic links until we get to the real thisdir.
  file=\`ls -ld \"\$file\" | $SED -n 's/.*-> //p'\`
  while test -n \"\$file\"; do
    destdir=\`\$ECHO \"\$file\" | $SED 's%/[^/]*\$%%'\`

    # If there was a directory component, then change thisdir.
    if test \"x\$destdir\" != \"x\$file\"; then
      case \"\$destdir\" in
      [\\\\/]* | [A-Za-z]:[\\\\/]*) thisdir=\"\$destdir\" ;;
      *) thisdir=\"\$thisdir/\$destdir\" ;;
      esac
    fi

    file=\`\$ECHO \"\$file\" | $SED 's%^.*/%%'\`
    file=\`ls -ld \"\$thisdir/\$file\" | $SED -n 's/.*-> //p'\`
  done

  # Usually 'no', except on cygwin/mingw when embedded into
  # the cwrapper.
  WRAPPER_SCRIPT_BELONGS_IN_OBJDIR=$func_emit_wrapper_arg1
  if test \"\$WRAPPER_SCRIPT_BELONGS_IN_OBJDIR\" = \"yes\"; then
    # special case for '.'
    if test \"\$thisdir\" = \".\"; then
      thisdir=\`pwd\`
    fi
    # remove .libs from thisdir
    case \"\$thisdir\" in
    *[\\\\/]$objdir ) thisdir=\`\$ECHO \"\$thisdir\" | $SED 's%[\\\\/][^\\\\/]*$%%'\` ;;
    $objdir )   thisdir=. ;;
    esac
  fi

  # Try to get the absolute directory name.
  absdir=\`cd \"\$thisdir\" && pwd\`
  test -n \"\$absdir\" && thisdir=\"\$absdir\"
"

	if test "$fast_install" = yes; then
	  $ECHO "\
  program=lt-'$outputname'$exeext
  progdir=\"\$thisdir/$objdir\"

  if test ! -f \"\$progdir/\$program\" ||
     { file=\`ls -1dt \"\$progdir/\$program\" \"\$progdir/../\$program\" 2>/dev/null | ${SED} 1q\`; \\
       test \"X\$file\" != \"X\$progdir/\$program\"; }; then

    file=\"\$\$-\$program\"

    if test ! -d \"\$progdir\"; then
      $MKDIR \"\$progdir\"
    else
      $RM \"\$progdir/\$file\"
    fi"

	  $ECHO "\

    # relink executable if necessary
    if test -n \"\$relink_command\"; then
      if relink_command_output=\`eval \$relink_command 2>&1\`; then :
      else
	$ECHO \"\$relink_command_output\" >&2
	$RM \"\$progdir/\$file\"
	exit 1
      fi
    fi

    $MV \"\$progdir/\$file\" \"\$progdir/\$program\" 2>/dev/null ||
    { $RM \"\$progdir/\$program\";
      $MV \"\$progdir/\$file\" \"\$progdir/\$program\"; }
    $RM \"\$progdir/\$file\"
  fi"
	else
	  $ECHO "\
  program='$outputname'
  progdir=\"\$thisdir/$objdir\"
"
	fi

	$ECHO "\

  if test -f \"\$progdir/\$program\"; then"

	# fixup the dll searchpath if we need to.
	#
	# Fix the DLL searchpath if we need to.  Do this before prepending
	# to shlibpath, because on Windows, both are PATH and uninstalled
	# libraries must come first.
	if test -n "$dllsearchpath"; then
	  $ECHO "\
    # Add the dll search path components to the executable PATH
    PATH=$dllsearchpath:\$PATH
"
	fi

	# Export our shlibpath_var if we have one.
	if test "$shlibpath_overrides_runpath" = yes && test -n "$shlibpath_var" && test -n "$temp_rpath"; then
	  $ECHO "\
    # Add our own library path to $shlibpath_var
    $shlibpath_var=\"$temp_rpath\$$shlibpath_var\"

    # Some systems cannot cope with colon-terminated $shlibpath_var
    # The second colon is a workaround for a bug in BeOS R4 sed
    $shlibpath_var=\`\$ECHO \"\$$shlibpath_var\" | $SED 's/::*\$//'\`

    export $shlibpath_var
"
	fi

	$ECHO "\
    if test \"\$libtool_execute_magic\" != \"$magic\"; then
      # Run the actual program with our arguments.
      func_exec_program \${1+\"\$@\"}
    fi
  else
    # The program doesn't exist.
    \$ECHO \"\$0: error: \\\`\$progdir/\$program' does not exist\" 1>&2
    \$ECHO \"This script is just a wrapper for \$program.\" 1>&2
    \$ECHO \"See the $PACKAGE documentation for more information.\" 1>&2
    exit 1
  fi
fi\
"
}


# func_emit_cwrapperexe_src
# emit the source code for a wrapper executable on stdout
# Must ONLY be called from within func_mode_link because
# it depends on a number of variable set therein.
func_emit_cwrapperexe_src ()
{
	cat <<EOF

/* $cwrappersource - temporary wrapper executable for $objdir/$outputname
   Generated by $PROGRAM (GNU $PACKAGE$TIMESTAMP) $VERSION

   The $output program cannot be directly executed until all the libtool
   libraries that it depends on are installed.

   This wrapper executable should never be moved out of the build directory.
   If it is, it will not operate correctly.
*/
EOF
	    cat <<"EOF"
#ifdef _MSC_VER
# define _CRT_SECURE_NO_DEPRECATE 1
#endif
#include <stdio.h>
#include <stdlib.h>
#ifdef _MSC_VER
# include <direct.h>
# include <process.h>
# include <io.h>
#else
# include <unistd.h>
# include <stdint.h>
# ifdef __CYGWIN__
#  include <io.h>
# endif
#endif
#include <malloc.h>
#include <stdarg.h>
#include <assert.h>
#include <string.h>
#include <ctype.h>
#include <errno.h>
#include <fcntl.h>
#include <sys/stat.h>

/* declarations of non-ANSI functions */
#if defined(__MINGW32__)
# ifdef __STRICT_ANSI__
int _putenv (const char *);
# endif
#elif defined(__CYGWIN__)
# ifdef __STRICT_ANSI__
char *realpath (const char *, char *);
int putenv (char *);
int setenv (const char *, const char *, int);
# endif
/* #elif defined (other platforms) ... */
#endif

/* portability defines, excluding path handling macros */
#if defined(_MSC_VER)
# define setmode _setmode
# define stat    _stat
# define chmod   _chmod
# define getcwd  _getcwd
# define putenv  _putenv
# define S_IXUSR _S_IEXEC
# ifndef _INTPTR_T_DEFINED
#  define _INTPTR_T_DEFINED
#  define intptr_t int
# endif
#elif defined(__MINGW32__)
# define setmode _setmode
# define stat    _stat
# define chmod   _chmod
# define getcwd  _getcwd
# define putenv  _putenv
#elif defined(__CYGWIN__)
# define HAVE_SETENV
# define FOPEN_WB "wb"
/* #elif defined (other platforms) ... */
#endif

#if defined(PATH_MAX)
# define LT_PATHMAX PATH_MAX
#elif defined(MAXPATHLEN)
# define LT_PATHMAX MAXPATHLEN
#else
# define LT_PATHMAX 1024
#endif

#ifndef S_IXOTH
# define S_IXOTH 0
#endif
#ifndef S_IXGRP
# define S_IXGRP 0
#endif

/* path handling portability macros */
#ifndef DIR_SEPARATOR
# define DIR_SEPARATOR '/'
# define PATH_SEPARATOR ':'
#endif

#if defined (_WIN32) || defined (__MSDOS__) || defined (__DJGPP__) || \
  defined (__OS2__)
# define HAVE_DOS_BASED_FILE_SYSTEM
# define FOPEN_WB "wb"
# ifndef DIR_SEPARATOR_2
#  define DIR_SEPARATOR_2 '\\'
# endif
# ifndef PATH_SEPARATOR_2
#  define PATH_SEPARATOR_2 ';'
# endif
#endif

#ifndef DIR_SEPARATOR_2
# define IS_DIR_SEPARATOR(ch) ((ch) == DIR_SEPARATOR)
#else /* DIR_SEPARATOR_2 */
# define IS_DIR_SEPARATOR(ch) \
	(((ch) == DIR_SEPARATOR) || ((ch) == DIR_SEPARATOR_2))
#endif /* DIR_SEPARATOR_2 */

#ifndef PATH_SEPARATOR_2
# define IS_PATH_SEPARATOR(ch) ((ch) == PATH_SEPARATOR)
#else /* PATH_SEPARATOR_2 */
# define IS_PATH_SEPARATOR(ch) ((ch) == PATH_SEPARATOR_2)
#endif /* PATH_SEPARATOR_2 */

#ifndef FOPEN_WB
# define FOPEN_WB "w"
#endif
#ifndef _O_BINARY
# define _O_BINARY 0
#endif

#define XMALLOC(type, num)      ((type *) xmalloc ((num) * sizeof(type)))
#define XFREE(stale) do { \
  if (stale) { free ((void *) stale); stale = 0; } \
} while (0)

#if defined(LT_DEBUGWRAPPER)
static int lt_debug = 1;
#else
static int lt_debug = 0;
#endif

const char *program_name = "libtool-wrapper"; /* in case xstrdup fails */

void *xmalloc (size_t num);
char *xstrdup (const char *string);
const char *base_name (const char *name);
char *find_executable (const char *wrapper);
char *chase_symlinks (const char *pathspec);
int make_executable (const char *path);
int check_executable (const char *path);
char *strendzap (char *str, const char *pat);
void lt_debugprintf (const char *file, int line, const char *fmt, ...);
void lt_fatal (const char *file, int line, const char *message, ...);
static const char *nonnull (const char *s);
static const char *nonempty (const char *s);
void lt_setenv (const char *name, const char *value);
char *lt_extend_str (const char *orig_value, const char *add, int to_end);
void lt_update_exe_path (const char *name, const char *value);
void lt_update_lib_path (const char *name, const char *value);
char **prepare_spawn (char **argv);
void lt_dump_script (FILE *f);
EOF

	    cat <<EOF
volatile const char * MAGIC_EXE = "$magic_exe";
const char * LIB_PATH_VARNAME = "$shlibpath_var";
EOF

	    if test "$shlibpath_overrides_runpath" = yes && test -n "$shlibpath_var" && test -n "$temp_rpath"; then
              func_to_host_path "$temp_rpath"
	      cat <<EOF
const char * LIB_PATH_VALUE   = "$func_to_host_path_result";
EOF
	    else
	      cat <<"EOF"
const char * LIB_PATH_VALUE   = "";
EOF
	    fi

	    if test -n "$dllsearchpath"; then
              func_to_host_path "$dllsearchpath:"
	      cat <<EOF
const char * EXE_PATH_VARNAME = "PATH";
const char * EXE_PATH_VALUE   = "$func_to_host_path_result";
EOF
	    else
	      cat <<"EOF"
const char * EXE_PATH_VARNAME = "";
const char * EXE_PATH_VALUE   = "";
EOF
	    fi

	    if test "$fast_install" = yes; then
	      cat <<EOF
const char * TARGET_PROGRAM_NAME = "lt-$outputname"; /* hopefully, no .exe */
EOF
	    else
	      cat <<EOF
const char * TARGET_PROGRAM_NAME = "$outputname"; /* hopefully, no .exe */
EOF
	    fi


	    cat <<"EOF"

#define LTWRAPPER_OPTION_PREFIX         "--lt-"

static const char *ltwrapper_option_prefix = LTWRAPPER_OPTION_PREFIX;
static const char *dumpscript_opt       = LTWRAPPER_OPTION_PREFIX "dump-script";
static const char *debug_opt            = LTWRAPPER_OPTION_PREFIX "debug";

int
main (int argc, char *argv[])
{
  char **newargz;
  int  newargc;
  char *tmp_pathspec;
  char *actual_cwrapper_path;
  char *actual_cwrapper_name;
  char *target_name;
  char *lt_argv_zero;
  intptr_t rval = 127;

  int i;

  program_name = (char *) xstrdup (base_name (argv[0]));
  newargz = XMALLOC (char *, argc + 1);

  /* very simple arg parsing; don't want to rely on getopt
   * also, copy all non cwrapper options to newargz, except
   * argz[0], which is handled differently
   */
  newargc=0;
  for (i = 1; i < argc; i++)
    {
      if (strcmp (argv[i], dumpscript_opt) == 0)
	{
EOF
	    case "$host" in
	      *mingw* | *cygwin* )
		# make stdout use "unix" line endings
		echo "          setmode(1,_O_BINARY);"
		;;
	      esac

	    cat <<"EOF"
	  lt_dump_script (stdout);
	  return 0;
	}
      if (strcmp (argv[i], debug_opt) == 0)
	{
          lt_debug = 1;
          continue;
	}
      if (strcmp (argv[i], ltwrapper_option_prefix) == 0)
        {
          /* however, if there is an option in the LTWRAPPER_OPTION_PREFIX
             namespace, but it is not one of the ones we know about and
             have already dealt with, above (inluding dump-script), then
             report an error. Otherwise, targets might begin to believe
             they are allowed to use options in the LTWRAPPER_OPTION_PREFIX
             namespace. The first time any user complains about this, we'll
             need to make LTWRAPPER_OPTION_PREFIX a configure-time option
             or a configure.ac-settable value.
           */
          lt_fatal (__FILE__, __LINE__,
		    "unrecognized %s option: '%s'",
                    ltwrapper_option_prefix, argv[i]);
        }
      /* otherwise ... */
      newargz[++newargc] = xstrdup (argv[i]);
    }
  newargz[++newargc] = NULL;

EOF
	    cat <<EOF
  /* The GNU banner must be the first non-error debug message */
  lt_debugprintf (__FILE__, __LINE__, "libtool wrapper (GNU $PACKAGE$TIMESTAMP) $VERSION\n");
EOF
	    cat <<"EOF"
  lt_debugprintf (__FILE__, __LINE__, "(main) argv[0]: %s\n", argv[0]);
  lt_debugprintf (__FILE__, __LINE__, "(main) program_name: %s\n", program_name);

  tmp_pathspec = find_executable (argv[0]);
  if (tmp_pathspec == NULL)
    lt_fatal (__FILE__, __LINE__, "couldn't find %s", argv[0]);
  lt_debugprintf (__FILE__, __LINE__,
                  "(main) found exe (before symlink chase) at: %s\n",
		  tmp_pathspec);

  actual_cwrapper_path = chase_symlinks (tmp_pathspec);
  lt_debugprintf (__FILE__, __LINE__,
                  "(main) found exe (after symlink chase) at: %s\n",
		  actual_cwrapper_path);
  XFREE (tmp_pathspec);

  actual_cwrapper_name = xstrdup (base_name (actual_cwrapper_path));
  strendzap (actual_cwrapper_path, actual_cwrapper_name);

  /* wrapper name transforms */
  strendzap (actual_cwrapper_name, ".exe");
  tmp_pathspec = lt_extend_str (actual_cwrapper_name, ".exe", 1);
  XFREE (actual_cwrapper_name);
  actual_cwrapper_name = tmp_pathspec;
  tmp_pathspec = 0;

  /* target_name transforms -- use actual target program name; might have lt- prefix */
  target_name = xstrdup (base_name (TARGET_PROGRAM_NAME));
  strendzap (target_name, ".exe");
  tmp_pathspec = lt_extend_str (target_name, ".exe", 1);
  XFREE (target_name);
  target_name = tmp_pathspec;
  tmp_pathspec = 0;

  lt_debugprintf (__FILE__, __LINE__,
		  "(main) libtool target name: %s\n",
		  target_name);
EOF

	    cat <<EOF
  newargz[0] =
    XMALLOC (char, (strlen (actual_cwrapper_path) +
		    strlen ("$objdir") + 1 + strlen (actual_cwrapper_name) + 1));
  strcpy (newargz[0], actual_cwrapper_path);
  strcat (newargz[0], "$objdir");
  strcat (newargz[0], "/");
EOF

	    cat <<"EOF"
  /* stop here, and copy so we don't have to do this twice */
  tmp_pathspec = xstrdup (newargz[0]);

  /* do NOT want the lt- prefix here, so use actual_cwrapper_name */
  strcat (newargz[0], actual_cwrapper_name);

  /* DO want the lt- prefix here if it exists, so use target_name */
  lt_argv_zero = lt_extend_str (tmp_pathspec, target_name, 1);
  XFREE (tmp_pathspec);
  tmp_pathspec = NULL;
EOF

	    case $host_os in
	      mingw*)
	    cat <<"EOF"
  {
    char* p;
    while ((p = strchr (newargz[0], '\\')) != NULL)
      {
	*p = '/';
      }
    while ((p = strchr (lt_argv_zero, '\\')) != NULL)
      {
	*p = '/';
      }
  }
EOF
	    ;;
	    esac

	    cat <<"EOF"
  XFREE (target_name);
  XFREE (actual_cwrapper_path);
  XFREE (actual_cwrapper_name);

  lt_setenv ("BIN_SH", "xpg4"); /* for Tru64 */
  lt_setenv ("DUALCASE", "1");  /* for MSK sh */
  /* Update the DLL searchpath.  EXE_PATH_VALUE ($dllsearchpath) must
     be prepended before (that is, appear after) LIB_PATH_VALUE ($temp_rpath)
     because on Windows, both *_VARNAMEs are PATH but uninstalled
     libraries must come first. */
  lt_update_exe_path (EXE_PATH_VARNAME, EXE_PATH_VALUE);
  lt_update_lib_path (LIB_PATH_VARNAME, LIB_PATH_VALUE);

  lt_debugprintf (__FILE__, __LINE__, "(main) lt_argv_zero: %s\n",
		  nonnull (lt_argv_zero));
  for (i = 0; i < newargc; i++)
    {
      lt_debugprintf (__FILE__, __LINE__, "(main) newargz[%d]: %s\n",
		      i, nonnull (newargz[i]));
    }

EOF

	    case $host_os in
	      mingw*)
		cat <<"EOF"
  /* execv doesn't actually work on mingw as expected on unix */
  newargz = prepare_spawn (newargz);
  rval = _spawnv (_P_WAIT, lt_argv_zero, (const char * const *) newargz);
  if (rval == -1)
    {
      /* failed to start process */
      lt_debugprintf (__FILE__, __LINE__,
		      "(main) failed to launch target \"%s\": %s\n",
		      lt_argv_zero, nonnull (strerror (errno)));
      return 127;
    }
  return rval;
EOF
		;;
	      *)
		cat <<"EOF"
  execv (lt_argv_zero, newargz);
  return rval; /* =127, but avoids unused variable warning */
EOF
		;;
	    esac

	    cat <<"EOF"
}

void *
xmalloc (size_t num)
{
  void *p = (void *) malloc (num);
  if (!p)
    lt_fatal (__FILE__, __LINE__, "memory exhausted");

  return p;
}

char *
xstrdup (const char *string)
{
  return string ? strcpy ((char *) xmalloc (strlen (string) + 1),
			  string) : NULL;
}

const char *
base_name (const char *name)
{
  const char *base;

#if defined (HAVE_DOS_BASED_FILE_SYSTEM)
  /* Skip over the disk name in MSDOS pathnames. */
  if (isalpha ((unsigned char) name[0]) && name[1] == ':')
    name += 2;
#endif

  for (base = name; *name; name++)
    if (IS_DIR_SEPARATOR (*name))
      base = name + 1;
  return base;
}

int
check_executable (const char *path)
{
  struct stat st;

  lt_debugprintf (__FILE__, __LINE__, "(check_executable): %s\n",
                  nonempty (path));
  if ((!path) || (!*path))
    return 0;

  if ((stat (path, &st) >= 0)
      && (st.st_mode & (S_IXUSR | S_IXGRP | S_IXOTH)))
    return 1;
  else
    return 0;
}

int
make_executable (const char *path)
{
  int rval = 0;
  struct stat st;

  lt_debugprintf (__FILE__, __LINE__, "(make_executable): %s\n",
                  nonempty (path));
  if ((!path) || (!*path))
    return 0;

  if (stat (path, &st) >= 0)
    {
      rval = chmod (path, st.st_mode | S_IXOTH | S_IXGRP | S_IXUSR);
    }
  return rval;
}

/* Searches for the full path of the wrapper.  Returns
   newly allocated full path name if found, NULL otherwise
   Does not chase symlinks, even on platforms that support them.
*/
char *
find_executable (const char *wrapper)
{
  int has_slash = 0;
  const char *p;
  const char *p_next;
  /* static buffer for getcwd */
  char tmp[LT_PATHMAX + 1];
  int tmp_len;
  char *concat_name;

  lt_debugprintf (__FILE__, __LINE__, "(find_executable): %s\n",
                  nonempty (wrapper));

  if ((wrapper == NULL) || (*wrapper == '\0'))
    return NULL;

  /* Absolute path? */
#if defined (HAVE_DOS_BASED_FILE_SYSTEM)
  if (isalpha ((unsigned char) wrapper[0]) && wrapper[1] == ':')
    {
      concat_name = xstrdup (wrapper);
      if (check_executable (concat_name))
	return concat_name;
      XFREE (concat_name);
    }
  else
    {
#endif
      if (IS_DIR_SEPARATOR (wrapper[0]))
	{
	  concat_name = xstrdup (wrapper);
	  if (check_executable (concat_name))
	    return concat_name;
	  XFREE (concat_name);
	}
#if defined (HAVE_DOS_BASED_FILE_SYSTEM)
    }
#endif

  for (p = wrapper; *p; p++)
    if (*p == '/')
      {
	has_slash = 1;
	break;
      }
  if (!has_slash)
    {
      /* no slashes; search PATH */
      const char *path = getenv ("PATH");
      if (path != NULL)
	{
	  for (p = path; *p; p = p_next)
	    {
	      const char *q;
	      size_t p_len;
	      for (q = p; *q; q++)
		if (IS_PATH_SEPARATOR (*q))
		  break;
	      p_len = q - p;
	      p_next = (*q == '\0' ? q : q + 1);
	      if (p_len == 0)
		{
		  /* empty path: current directory */
		  if (getcwd (tmp, LT_PATHMAX) == NULL)
		    lt_fatal (__FILE__, __LINE__, "getcwd failed: %s",
                              nonnull (strerror (errno)));
		  tmp_len = strlen (tmp);
		  concat_name =
		    XMALLOC (char, tmp_len + 1 + strlen (wrapper) + 1);
		  memcpy (concat_name, tmp, tmp_len);
		  concat_name[tmp_len] = '/';
		  strcpy (concat_name + tmp_len + 1, wrapper);
		}
	      else
		{
		  concat_name =
		    XMALLOC (char, p_len + 1 + strlen (wrapper) + 1);
		  memcpy (concat_name, p, p_len);
		  concat_name[p_len] = '/';
		  strcpy (concat_name + p_len + 1, wrapper);
		}
	      if (check_executable (concat_name))
		return concat_name;
	      XFREE (concat_name);
	    }
	}
      /* not found in PATH; assume curdir */
    }
  /* Relative path | not found in path: prepend cwd */
  if (getcwd (tmp, LT_PATHMAX) == NULL)
    lt_fatal (__FILE__, __LINE__, "getcwd failed: %s",
              nonnull (strerror (errno)));
  tmp_len = strlen (tmp);
  concat_name = XMALLOC (char, tmp_len + 1 + strlen (wrapper) + 1);
  memcpy (concat_name, tmp, tmp_len);
  concat_name[tmp_len] = '/';
  strcpy (concat_name + tmp_len + 1, wrapper);

  if (check_executable (concat_name))
    return concat_name;
  XFREE (concat_name);
  return NULL;
}

char *
chase_symlinks (const char *pathspec)
{
#ifndef S_ISLNK
  return xstrdup (pathspec);
#else
  char buf[LT_PATHMAX];
  struct stat s;
  char *tmp_pathspec = xstrdup (pathspec);
  char *p;
  int has_symlinks = 0;
  while (strlen (tmp_pathspec) && !has_symlinks)
    {
      lt_debugprintf (__FILE__, __LINE__,
		      "checking path component for symlinks: %s\n",
		      tmp_pathspec);
      if (lstat (tmp_pathspec, &s) == 0)
	{
	  if (S_ISLNK (s.st_mode) != 0)
	    {
	      has_symlinks = 1;
	      break;
	    }

	  /* search backwards for last DIR_SEPARATOR */
	  p = tmp_pathspec + strlen (tmp_pathspec) - 1;
	  while ((p > tmp_pathspec) && (!IS_DIR_SEPARATOR (*p)))
	    p--;
	  if ((p == tmp_pathspec) && (!IS_DIR_SEPARATOR (*p)))
	    {
	      /* no more DIR_SEPARATORS left */
	      break;
	    }
	  *p = '\0';
	}
      else
	{
	  lt_fatal (__FILE__, __LINE__,
		    "error accessing file \"%s\": %s",
		    tmp_pathspec, nonnull (strerror (errno)));
	}
    }
  XFREE (tmp_pathspec);

  if (!has_symlinks)
    {
      return xstrdup (pathspec);
    }

  tmp_pathspec = realpath (pathspec, buf);
  if (tmp_pathspec == 0)
    {
      lt_fatal (__FILE__, __LINE__,
		"could not follow symlinks for %s", pathspec);
    }
  return xstrdup (tmp_pathspec);
#endif
}

char *
strendzap (char *str, const char *pat)
{
  size_t len, patlen;

  assert (str != NULL);
  assert (pat != NULL);

  len = strlen (str);
  patlen = strlen (pat);

  if (patlen <= len)
    {
      str += len - patlen;
      if (strcmp (str, pat) == 0)
	*str = '\0';
    }
  return str;
}

void
lt_debugprintf (const char *file, int line, const char *fmt, ...)
{
  va_list args;
  if (lt_debug)
    {
      (void) fprintf (stderr, "%s:%s:%d: ", program_name, file, line);
      va_start (args, fmt);
      (void) vfprintf (stderr, fmt, args);
      va_end (args);
    }
}

static void
lt_error_core (int exit_status, const char *file,
	       int line, const char *mode,
	       const char *message, va_list ap)
{
  fprintf (stderr, "%s:%s:%d: %s: ", program_name, file, line, mode);
  vfprintf (stderr, message, ap);
  fprintf (stderr, ".\n");

  if (exit_status >= 0)
    exit (exit_status);
}

void
lt_fatal (const char *file, int line, const char *message, ...)
{
  va_list ap;
  va_start (ap, message);
  lt_error_core (EXIT_FAILURE, file, line, "FATAL", message, ap);
  va_end (ap);
}

static const char *
nonnull (const char *s)
{
  return s ? s : "(null)";
}

static const char *
nonempty (const char *s)
{
  return (s && !*s) ? "(empty)" : nonnull (s);
}

void
lt_setenv (const char *name, const char *value)
{
  lt_debugprintf (__FILE__, __LINE__,
		  "(lt_setenv) setting '%s' to '%s'\n",
                  nonnull (name), nonnull (value));
  {
#ifdef HAVE_SETENV
    /* always make a copy, for consistency with !HAVE_SETENV */
    char *str = xstrdup (value);
    setenv (name, str, 1);
#else
    int len = strlen (name) + 1 + strlen (value) + 1;
    char *str = XMALLOC (char, len);
    sprintf (str, "%s=%s", name, value);
    if (putenv (str) != EXIT_SUCCESS)
      {
        XFREE (str);
      }
#endif
  }
}

char *
lt_extend_str (const char *orig_value, const char *add, int to_end)
{
  char *new_value;
  if (orig_value && *orig_value)
    {
      int orig_value_len = strlen (orig_value);
      int add_len = strlen (add);
      new_value = XMALLOC (char, add_len + orig_value_len + 1);
      if (to_end)
        {
          strcpy (new_value, orig_value);
          strcpy (new_value + orig_value_len, add);
        }
      else
        {
          strcpy (new_value, add);
          strcpy (new_value + add_len, orig_value);
        }
    }
  else
    {
      new_value = xstrdup (add);
    }
  return new_value;
}

void
lt_update_exe_path (const char *name, const char *value)
{
  lt_debugprintf (__FILE__, __LINE__,
		  "(lt_update_exe_path) modifying '%s' by prepending '%s'\n",
                  nonnull (name), nonnull (value));

  if (name && *name && value && *value)
    {
      char *new_value = lt_extend_str (getenv (name), value, 0);
      /* some systems can't cope with a ':'-terminated path #' */
      int len = strlen (new_value);
      while (((len = strlen (new_value)) > 0) && IS_PATH_SEPARATOR (new_value[len-1]))
        {
          new_value[len-1] = '\0';
        }
      lt_setenv (name, new_value);
      XFREE (new_value);
    }
}

void
lt_update_lib_path (const char *name, const char *value)
{
  lt_debugprintf (__FILE__, __LINE__,
		  "(lt_update_lib_path) modifying '%s' by prepending '%s'\n",
                  nonnull (name), nonnull (value));

  if (name && *name && value && *value)
    {
      char *new_value = lt_extend_str (getenv (name), value, 0);
      lt_setenv (name, new_value);
      XFREE (new_value);
    }
}

EOF
	    case $host_os in
	      mingw*)
		cat <<"EOF"

/* Prepares an argument vector before calling spawn().
   Note that spawn() does not by itself call the command interpreter
     (getenv ("COMSPEC") != NULL ? getenv ("COMSPEC") :
      ({ OSVERSIONINFO v; v.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
         GetVersionEx(&v);
         v.dwPlatformId == VER_PLATFORM_WIN32_NT;
      }) ? "cmd.exe" : "command.com").
   Instead it simply concatenates the arguments, separated by ' ', and calls
   CreateProcess().  We must quote the arguments since Win32 CreateProcess()
   interprets characters like ' ', '\t', '\\', '"' (but not '<' and '>') in a
   special way:
   - Space and tab are interpreted as delimiters. They are not treated as
     delimiters if they are surrounded by double quotes: "...".
   - Unescaped double quotes are removed from the input. Their only effect is
     that within double quotes, space and tab are treated like normal
     characters.
   - Backslashes not followed by double quotes are not special.
   - But 2*n+1 backslashes followed by a double quote become
     n backslashes followed by a double quote (n >= 0):
       \" -> "
       \\\" -> \"
       \\\\\" -> \\"
 */
#define SHELL_SPECIAL_CHARS "\"\\ \001\002\003\004\005\006\007\010\011\012\013\014\015\016\017\020\021\022\023\024\025\026\027\030\031\032\033\034\035\036\037"
#define SHELL_SPACE_CHARS " \001\002\003\004\005\006\007\010\011\012\013\014\015\016\017\020\021\022\023\024\025\026\027\030\031\032\033\034\035\036\037"
char **
prepare_spawn (char **argv)
{
  size_t argc;
  char **new_argv;
  size_t i;

  /* Count number of arguments.  */
  for (argc = 0; argv[argc] != NULL; argc++)
    ;

  /* Allocate new argument vector.  */
  new_argv = XMALLOC (char *, argc + 1);

  /* Put quoted arguments into the new argument vector.  */
  for (i = 0; i < argc; i++)
    {
      const char *string = argv[i];

      if (string[0] == '\0')
	new_argv[i] = xstrdup ("\"\"");
      else if (strpbrk (string, SHELL_SPECIAL_CHARS) != NULL)
	{
	  int quote_around = (strpbrk (string, SHELL_SPACE_CHARS) != NULL);
	  size_t length;
	  unsigned int backslashes;
	  const char *s;
	  char *quoted_string;
	  char *p;

	  length = 0;