Sync CRT initialization code with mingw-w64 r690

- Fixed initialization for Console apps with Unicode entry point. Now stuff like "cout" in <iostream> doesn't lead to instant crashes.
- Unified the name of the entry point for ANSI and Unicode. The difference is just in the library now ("mingw_main" vs. "mingw_wmain")
  RBuild was changed appropriately to support this
- No more ReactOS-specific changes inside the initialization code

svn path=/trunk/; revision=40077

reactos/lib/3rdparty/mingw/crt0_w.c

@@ -12,10 +12,5 @@ int WINAPI wWinMain(HINSTANCE hInstance,HINSTANCE hPrevInstance,LPWSTR lpCmdLine
 
 int wmain (int flags, wchar_t **cmdline, wchar_t **inst)
 {
-#ifdef __GNUC__
-  /* C++ initialization.
-     gcc inserts this call automatically for a function called main , but not for wmain.  */
-  __main();
-#endif
   return (int) wWinMain ((HINSTANCE) inst, NULL, (LPWSTR) cmdline,(DWORD) flags);
 }

reactos/lib/3rdparty/mingw/crtdll.c

@@ -6,7 +6,9 @@
 
 #ifdef CRTDLL
 #undef CRTDLL
+#ifndef _DLL
 #define _DLL
+#endif
 
 #include <oscalls.h>
 #include <internal.h>

reactos/lib/3rdparty/mingw/crtexe.c

@@ -5,7 +5,9 @@
  */
 
 #undef CRTDLL
-//#define _DLL
+#ifndef _DLL
+#define _DLL
+#endif
 
 #define SPECIAL_CRTEXE
 
@@ -69,6 +71,7 @@ extern int mingw_app_type;
 
 static int argc;
 #ifdef WPRFLAG
+extern void __main(void);
 static wchar_t **argv;
 static wchar_t **envp;
 #else
@@ -144,22 +147,14 @@ pre_cpp_init (void)
 
 static int __tmainCRTStartup (void);
 
-#ifdef WPRFLAG
-int wWinMainCRTStartup (void)
-#else
 int WinMainCRTStartup (void)
-#endif
 {
   mingw_app_type = 1;
   __security_init_cookie ();
   return __tmainCRTStartup ();
 }
 
-#ifdef WPRFLAG
-int wmainCRTStartup (void)
-#else
 int mainCRTStartup (void)
-#endif
 {
   mingw_app_type = 0;
   __security_init_cookie ();
@@ -236,8 +231,6 @@ __tmainCRTStartup (void)
     if (mingw_app_type)
       {
 #ifdef WPRFLAG
-    if (_wcmdln == NULL)
-      return 255;
     lpszCommandLine = (_TCHAR *) _wcmdln;
 #else
     lpszCommandLine = (char *) _acmdln;
@@ -259,6 +252,9 @@ __tmainCRTStartup (void)
       lpszCommandLine++;
 
 #ifdef WPRFLAG
+    /* C++ initialization.
+       gcc inserts this call automatically for a function called main, but not for wmain.  */
+    __main ();
     mainret = wmain (
     	(int) (StartupInfo.dwFlags & STARTF_USESHOWWINDOW ? StartupInfo.wShowWindow : SW_SHOWDEFAULT),
     	(wchar_t **) lpszCommandLine, (wchar_t **) (HINSTANCE) &__ImageBase);
@@ -273,6 +269,9 @@ __tmainCRTStartup (void)
     duplicate_ppstrings (argc, &argv);
 #ifdef WPRFLAG
     __winitenv = envp;
+    /* C++ initialization.
+       gcc inserts this call automatically for a function called main, but not for wmain.  */
+    __main ();
     mainret = wmain (argc, argv, envp);
 #else
     __initenv = envp;

reactos/lib/3rdparty/mingw/mingw_helpers.c

@@ -12,9 +12,6 @@
 #include <tchar.h>
 #include <sect_attribs.h>
 #include <locale.h>
-#if 0
-#include "../revstamp.h"
-#endif
 
 const PIMAGE_TLS_CALLBACK __dyn_tls_init_callback;
 
@@ -32,12 +29,3 @@ _encode_pointer (void *ptr)
 
 /* 0:console, 1:windows.  */
 int mingw_app_type = 0;
-
-#if 0
-const char *__mingw_get_crt_info (void)
-{
-  return "MinGW-W64 Runtime " __MINGW64_VERSION " ("
-         __MINGW64_VERSION_STATE " - "
-	 "rev. " __MINGW_W64_REV ") " __MINGW_W64_REV_STAMP;
-}
-#endif

reactos/tools/rbuild/module.cpp

@@ -1090,16 +1090,10 @@ Module::GetDefaultModuleEntrypoint () const
 			return "DllMain@12";
 		case Win32CUI:
 		case Test:
-			if ( isUnicode )
-				return "wmainCRTStartup";
-			else
-				return "mainCRTStartup";
+			return "mainCRTStartup";
 		case Win32SCR:
 		case Win32GUI:
-			if ( isUnicode )
-				return "wWinMainCRTStartup";
-			else
-				return "WinMainCRTStartup";
+			return "WinMainCRTStartup";
 		case BuildTool:
 		case StaticLibrary:
 		case HostStaticLibrary: