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diff --git a/gcc/ada/rtinit.c b/gcc/ada/rtinit.c
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+/****************************************************************************
+ * *
+ * GNAT COMPILER COMPONENTS *
+ * *
+ * I N I T I A L I Z E *
+ * *
+ * C Implementation File *
+ * *
+ * Copyright (C) 2014-2015, Free Software Foundation, Inc. *
+ * *
+ * GNAT is free software; you can redistribute it and/or modify it under *
+ * terms of the GNU General Public License as published by the Free Soft- *
+ * ware Foundation; either version 3, or (at your option) any later ver- *
+ * sion. GNAT is distributed in the hope that it will be useful, but WITH- *
+ * OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY *
+ * or FITNESS FOR A PARTICULAR PURPOSE. *
+ * *
+ * As a special exception under Section 7 of GPL version 3, you are granted *
+ * additional permissions described in the GCC Runtime Library Exception, *
+ * version 3.1, as published by the Free Software Foundation. *
+ * *
+ * You should have received a copy of the GNU General Public License and *
+ * a copy of the GCC Runtime Library Exception along with this program; *
+ * see the files COPYING3 and COPYING.RUNTIME respectively. If not, see *
+ * <http://www.gnu.org/licenses/>. *
+ * *
+ * GNAT was originally developed by the GNAT team at New York University. *
+ * Extensive contributions were provided by Ada Core Technologies Inc. *
+ * *
+ ****************************************************************************/
+
+/* This unit provides implementation for __gnat_runtime_initialize ()
+ which is called in adainit() to do special initialization needed by
+ the GNAT runtime. */
+
+
+/* The following include is here to meet the published VxWorks requirement
+ that the __vxworks header appear before any other include. */
+#ifdef __vxworks
+#include "vxWorks.h"
+#endif
+
+#ifdef IN_RTS
+#include "tconfig.h"
+#include "tsystem.h"
+/* We don't have libiberty, so use malloc. */
+#define xmalloc(S) malloc (S)
+#define xrealloc(V,S) realloc (V,S)
+#else
+#include "config.h"
+#include "system.h"
+#endif
+
+#include "raise.h"
+#include <fcntl.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**************************************************/
+/* __gnat_runtime_initialize (NT-mingw32 Version) */
+/**************************************************/
+
+extern void __gnat_install_handler(void);
+
+int __gnat_wide_text_translation_required = 0;
+/* wide text translation, 0=none, 1=activated */
+
+int __gnat_rt_init_count = 0;
+/* number of references to the GNAT runtime, this is used to initialize
+ and finalize properly the run-time. */
+
+#if defined (__MINGW32__)
+#include "mingw32.h"
+#include <windows.h>
+
+extern void __gnat_init_float (void);
+extern void __gnat_install_SEH_handler (void *);
+
+extern int gnat_argc;
+extern char **gnat_argv;
+extern CRITICAL_SECTION ProcListCS;
+extern HANDLE ProcListEvt;
+
+#ifdef GNAT_UNICODE_SUPPORT
+
+#define EXPAND_ARGV_RATE 128
+
+static void
+append_arg (int *index, LPWSTR dir, LPWSTR value,
+ char ***argv, int *last, int quoted)
+{
+ int size;
+ LPWSTR fullvalue;
+ int vallen = _tcslen (value);
+ int dirlen;
+
+ if (dir == NULL)
+ {
+ /* no dir prefix */
+ dirlen = 0;
+ fullvalue = (LPWSTR) xmalloc ((vallen + 1) * sizeof(TCHAR));
+ }
+ else
+ {
+ /* Add dir first */
+ dirlen = _tcslen (dir);
+
+ fullvalue = (LPWSTR) xmalloc ((dirlen + vallen + 1) * sizeof(TCHAR));
+ _tcscpy (fullvalue, dir);
+ }
+
+ /* Append value */
+
+ if (quoted)
+ {
+ _tcsncpy (fullvalue + dirlen, value + 1, vallen - 1);
+ fullvalue [dirlen + vallen - sizeof(TCHAR)] = _T('\0');
+ }
+ else
+ _tcscpy (fullvalue + dirlen, value);
+
+ if (*last <= *index)
+ {
+ *last += EXPAND_ARGV_RATE;
+ *argv = (char **) xrealloc (*argv, (*last) * sizeof (char *));
+ }
+
+ size = WS2SC (NULL, fullvalue, 0);
+ (*argv)[*index] = (char *) xmalloc (size + sizeof(TCHAR));
+ WS2SC ((*argv)[*index], fullvalue, size);
+
+ free (fullvalue);
+
+ (*index)++;
+}
+#endif
+
+void
+__gnat_runtime_initialize(void)
+{
+ /* increment the reference counter */
+
+ __gnat_rt_init_count++;
+
+ /* if already initialized return now */
+ if (__gnat_rt_init_count > 1)
+ return;
+
+ /* Initialize floating-point coprocessor. This call is needed because
+ the MS libraries default to 64-bit precision instead of 80-bit
+ precision, and we require the full precision for proper operation,
+ given that we have set Max_Digits etc with this in mind */
+
+ __gnat_init_float ();
+
+ /* Initialize the critical section and event handle for the win32_wait()
+ implementation, see adaint.c */
+
+ InitializeCriticalSection (&ProcListCS);
+ ProcListEvt = CreateEvent (NULL, FALSE, FALSE, NULL);
+
+#ifdef GNAT_UNICODE_SUPPORT
+ /* Set current code page for filenames handling. */
+ {
+ char *codepage = getenv ("GNAT_CODE_PAGE");
+
+ /* Default code page is UTF-8. */
+ CurrentCodePage = CP_UTF8;
+
+ if (codepage != NULL)
+ {
+ if (strcmp (codepage, "CP_ACP") == 0)
+ CurrentCodePage = CP_ACP;
+ else if (strcmp (codepage, "CP_UTF8") == 0)
+ CurrentCodePage = CP_UTF8;
+ }
+ }
+
+ /* Set current encoding for the IO. */
+ {
+ char *ccsencoding = getenv ("GNAT_CCS_ENCODING");
+
+ /* Default CCS Encoding. */
+ CurrentCCSEncoding = _O_TEXT;
+ __gnat_wide_text_translation_required = 0;
+
+ if (ccsencoding != NULL)
+ {
+ if (strcmp (ccsencoding, "U16TEXT") == 0)
+ {
+ CurrentCCSEncoding = _O_U16TEXT;
+ __gnat_wide_text_translation_required = 1;
+ }
+ else if (strcmp (ccsencoding, "TEXT") == 0)
+ {
+ CurrentCCSEncoding = _O_TEXT;
+ __gnat_wide_text_translation_required = 0;
+ }
+ else if (strcmp (ccsencoding, "WTEXT") == 0)
+ {
+ CurrentCCSEncoding = _O_WTEXT;
+ __gnat_wide_text_translation_required = 1;
+ }
+ else if (strcmp (ccsencoding, "U8TEXT") == 0)
+ {
+ CurrentCCSEncoding = _O_U8TEXT;
+ __gnat_wide_text_translation_required = 1;
+ }
+ }
+ }
+
+ /* Adjust gnat_argv to support Unicode characters. */
+ {
+ LPWSTR *wargv;
+ int wargc;
+ int k;
+ int last;
+ int argc_expanded = 0;
+ TCHAR result [MAX_PATH];
+ int quoted;
+
+ wargv = CommandLineToArgvW (GetCommandLineW(), &wargc);
+
+ if (wargv != NULL)
+ {
+ /* Set gnat_argv with arguments encoded in UTF-8. */
+ last = wargc + 1;
+ gnat_argv = (char **) xmalloc ((last) * sizeof (char *));
+
+ /* argv[0] is the executable full path-name. */
+
+ SearchPath (NULL, wargv[0], _T(".exe"), MAX_PATH, result, NULL);
+ append_arg (&argc_expanded, NULL, result, &gnat_argv, &last, 0);
+
+ for (k=1; k<wargc; k++)
+ {
+ quoted = (wargv[k][0] == _T('\''));
+
+ /* Check for wildcard expansion if the argument is not quoted. */
+ if (!quoted
+ && (_tcsstr (wargv[k], _T("?")) != 0 ||
+ _tcsstr (wargv[k], _T("*")) != 0))
+ {
+ /* Wilcards are present, append all corresponding matches. */
+ WIN32_FIND_DATA FileData;
+ HANDLE hDir = FindFirstFile (wargv[k], &FileData);
+ LPWSTR dir = NULL;
+ LPWSTR ldir = _tcsrchr (wargv[k], _T('\\'));
+
+ if (ldir == NULL)
+ ldir = _tcsrchr (wargv[k], _T('/'));
+
+ if (hDir == INVALID_HANDLE_VALUE)
+ {
+ /* No match, append arg as-is. */
+ append_arg (&argc_expanded, NULL, wargv[k],
+ &gnat_argv, &last, quoted);
+ }
+ else
+ {
+ if (ldir != NULL)
+ {
+ int n = ldir - wargv[k] + 1;
+ dir = (LPWSTR) xmalloc ((n + 1) * sizeof (TCHAR));
+ _tcsncpy (dir, wargv[k], n);
+ dir[n] = _T('\0');
+ }
+
+ /* Append first match and all remaining ones. */
+
+ do {
+ /* Do not add . and .. special entries */
+
+ if (_tcscmp (FileData.cFileName, _T(".")) != 0
+ && _tcscmp (FileData.cFileName, _T("..")) != 0)
+ append_arg (&argc_expanded, dir, FileData.cFileName,
+ &gnat_argv, &last, 0);
+ } while (FindNextFile (hDir, &FileData));
+
+ FindClose (hDir);
+
+ if (dir != NULL)
+ free (dir);
+ }
+ }
+ else
+ {
+ /* No wildcard. Store parameter as-is. Remove quote if
+ needed. */
+ append_arg (&argc_expanded, NULL, wargv[k],
+ &gnat_argv, &last, quoted);
+ }
+ }
+
+ LocalFree (wargv);
+ gnat_argc = argc_expanded;
+ gnat_argv = (char **) xrealloc
+ (gnat_argv, argc_expanded * sizeof (char *));
+ }
+ }
+#endif
+
+ __gnat_install_handler();
+}
+
+/**************************************************/
+/* __gnat_runtime_initialize (init_float version) */
+/**************************************************/
+
+#elif defined (__Lynx__) || defined (__FreeBSD__) || defined(__NetBSD__) \
+ || defined (__OpenBSD__)
+
+extern void __gnat_init_float (void);
+
+void
+__gnat_runtime_initialize(void)
+{
+ /* increment the reference counter */
+
+ __gnat_rt_init_count++;
+
+ /* if already initialized return now */
+ if (__gnat_rt_init_count > 1)
+ return;
+
+ __gnat_init_float ();
+
+ __gnat_install_handler();
+}
+
+/***********************************************/
+/* __gnat_runtime_initialize (VxWorks Version) */
+/***********************************************/
+
+#elif defined(__vxworks)
+
+extern void __gnat_init_float (void);
+
+void
+__gnat_runtime_initialize(void)
+{
+ /* increment the reference counter */
+
+ __gnat_rt_init_count++;
+
+ /* if already initialized return now */
+ if (__gnat_rt_init_count > 1)
+ return;
+
+ __gnat_init_float ();
+
+ __gnat_install_handler();
+}
+
+#else
+
+/***********************************************/
+/* __gnat_runtime_initialize (default version) */
+/***********************************************/
+
+void
+__gnat_runtime_initialize(void)
+{
+ /* increment the reference counter */
+
+ __gnat_rt_init_count++;
+
+ /* if already initialized return now */
+ if (__gnat_rt_init_count > 1)
+ return;
+
+ __gnat_install_handler();
+}
+
+#endif
+
+#ifdef __cplusplus
+}
+#endif
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